Periodic Reporting for period 1 - HyPerGreen (Revealing pathways towards efficient and stable eco-friendly tin perovskite solar cells by photo-Hall and surface photo-voltage measurements)
Reporting period: 2023-02-14 to 2025-02-13
Summary of the context and overall objectives of the project
The growing demand for clean, renewable energy sources has driven significant advancements in photovoltaic (PV) technologies, particularly in the development of perovskite solar cells. These materials offer a promising solution to the limitations of traditional silicon-based solar cells, with the potential for higher efficiency at lower production costs. However, despite their progress, perovskite solar cells have yet to fully overcome several key challenges, particularly in relation to their efficiency, stability, and scalability.
This project focused on advancing tin-based perovskite solar cells, which represent a particularly promising alternative to lead-based perovskites due to their lower toxicity and more sustainable nature. However, tin perovskites have historically struggled with lower efficiency and stability compared to lead-based counterparts. The main objective of the project was to significantly improve the performance of tin perovskite solar cells by overcoming these challenges through innovative material and device engineering strategies.
The project specifically aimed to achieve the following key objectives:
1. Enhancement of Tin Perovskite Efficiency: The first goal was to develop new approaches to boost the efficiency of tin-based perovskite solar cells, making them competitive with the best-performing lead-based devices. This required a deep understanding of the fundamental processes that govern charge transport, recombination, and extraction in the perovskite materials.
2. Development of Advanced Characterization Techniques: To better understand and optimize the properties of tin perovskites, novel methods for characterizing the materials were developed. One of the significant breakthroughs in the project was the development of the Constant Light-Induced Magneto-Transport (CLIMAT) method, which allows for the simultaneous probing of multiple material parameters in real time, providing new insights into the fundamental behavior of perovskites under operating conditions.
3. Simulations for Charge Extraction: In parallel to experimental efforts, a simulation tool was developed to model the charge extraction process and to predict the behavior of perovskite solar cells more accurately. This simulation incorporates insights into charge transport and recombination, enabling the optimization of device architectures for better performance and stability.
4. Public Engagement and Knowledge Dissemination: As part of the project’s broader impact, efforts were made to communicate the scientific progress and implications to the public. The project team organized events such as a "Long Night of Science" at the host institution, aimed at engaging the local community and raising awareness about the importance of renewable energy and scientific research. Additionally, the project’s results were shared at several international conferences, ensuring that the findings reached a global audience of researchers, policymakers, and industry professionals.
The expected impact of the project is significant, both from a scientific and societal perspective. By advancing the efficiency and stability of tin perovskite solar cells, the project aims to contribute to the development of more sustainable and cost-effective solar energy solutions. The success of this work has the potential to accelerate the transition to renewable energy, addressing the global energy crisis and contributing to the EU’s ambitious climate goals.
Furthermore, the integration of advanced characterization methods and simulations will lay the groundwork for the next generation of perovskite materials, pushing the boundaries of what is possible in solar cell technology. These breakthroughs also open doors for broader applications in fields such as sensors, transistors, and photocatalysis, which rely on efficient charge transport and manipulation.
The project aligns with several strategic political goals within the EU, including the Green Deal, which aims to make Europe the first climate-neutral continent by 2050, and the digital and industrial transformation objectives outlined in Horizon Europe. By tackling the challenges facing perovskite solar cells, the project supports the development of cutting-edge renewable energy technologies, contributing to Europe’s leadership in the global energy transition.
In summary, this project represents a critical step forward in solar cell technology, with the potential to drive significant economic, environmental, and societal benefits by making renewable energy more accessible, efficient, and sustainable. The innovations developed through this project will not only enhance the performance of perovskite solar cells but also provide valuable insights that can be applied to other energy-related technologies, thereby contributing to the overall advancement of clean energy solutions.
This project focused on advancing tin-based perovskite solar cells, which represent a particularly promising alternative to lead-based perovskites due to their lower toxicity and more sustainable nature. However, tin perovskites have historically struggled with lower efficiency and stability compared to lead-based counterparts. The main objective of the project was to significantly improve the performance of tin perovskite solar cells by overcoming these challenges through innovative material and device engineering strategies.
The project specifically aimed to achieve the following key objectives:
1. Enhancement of Tin Perovskite Efficiency: The first goal was to develop new approaches to boost the efficiency of tin-based perovskite solar cells, making them competitive with the best-performing lead-based devices. This required a deep understanding of the fundamental processes that govern charge transport, recombination, and extraction in the perovskite materials.
2. Development of Advanced Characterization Techniques: To better understand and optimize the properties of tin perovskites, novel methods for characterizing the materials were developed. One of the significant breakthroughs in the project was the development of the Constant Light-Induced Magneto-Transport (CLIMAT) method, which allows for the simultaneous probing of multiple material parameters in real time, providing new insights into the fundamental behavior of perovskites under operating conditions.
3. Simulations for Charge Extraction: In parallel to experimental efforts, a simulation tool was developed to model the charge extraction process and to predict the behavior of perovskite solar cells more accurately. This simulation incorporates insights into charge transport and recombination, enabling the optimization of device architectures for better performance and stability.
4. Public Engagement and Knowledge Dissemination: As part of the project’s broader impact, efforts were made to communicate the scientific progress and implications to the public. The project team organized events such as a "Long Night of Science" at the host institution, aimed at engaging the local community and raising awareness about the importance of renewable energy and scientific research. Additionally, the project’s results were shared at several international conferences, ensuring that the findings reached a global audience of researchers, policymakers, and industry professionals.
The expected impact of the project is significant, both from a scientific and societal perspective. By advancing the efficiency and stability of tin perovskite solar cells, the project aims to contribute to the development of more sustainable and cost-effective solar energy solutions. The success of this work has the potential to accelerate the transition to renewable energy, addressing the global energy crisis and contributing to the EU’s ambitious climate goals.
Furthermore, the integration of advanced characterization methods and simulations will lay the groundwork for the next generation of perovskite materials, pushing the boundaries of what is possible in solar cell technology. These breakthroughs also open doors for broader applications in fields such as sensors, transistors, and photocatalysis, which rely on efficient charge transport and manipulation.
The project aligns with several strategic political goals within the EU, including the Green Deal, which aims to make Europe the first climate-neutral continent by 2050, and the digital and industrial transformation objectives outlined in Horizon Europe. By tackling the challenges facing perovskite solar cells, the project supports the development of cutting-edge renewable energy technologies, contributing to Europe’s leadership in the global energy transition.
In summary, this project represents a critical step forward in solar cell technology, with the potential to drive significant economic, environmental, and societal benefits by making renewable energy more accessible, efficient, and sustainable. The innovations developed through this project will not only enhance the performance of perovskite solar cells but also provide valuable insights that can be applied to other energy-related technologies, thereby contributing to the overall advancement of clean energy solutions.
Work performed from the beginning of the project to the end of the period covered by the report and main results achieved so far
The project focused on advancing the performance of tin-based perovskite solar cells by addressing key challenges such as efficiency, stability, and charge transport. Several significant scientific and technical advancements were achieved, leading to the development of higher-performing and more stable tin perovskite solar cells.
1. Development of Tin Perovskite Solar Cells with Enhanced Efficiency
One of the primary objectives of the project was to improve the efficiency of tin-based perovskite solar cells. Although tin perovskites are considered environmentally safer alternatives to lead-based perovskites, they have typically shown lower power conversion efficiencies (PCE). The project introduced a novel method for synthesizing and processing tin perovskites that significantly enhanced their efficiency.
Through optimization of the material’s crystallization process, key improvements were made in charge transport and overall device performance. The project team reduced structural defects in the perovskite material, enhancing its optoelectronic properties, and achieved a breakthrough in efficiency. For the first time, tin-based solar cells achieved efficiencies that surpassed those of the state-of-the-art PEDOT-based devices, marking a significant advancement in the field.
2. Development of the CLIMAT Method for Advanced Characterization
A crucial breakthrough was the development of the Constant Light-Induced Magneto-Transport (CLIMAT) method. This method allows for the simultaneous measurement of multiple material parameters, providing a comprehensive understanding of charge dynamics and material behavior under operational conditions. The CLIMAT method enabled the team to probe the behavior of perovskite materials, helping to identify factors that limit their performance.
By using CLIMAT, the team gained real-time data on charge carrier mobility, recombination rates, and defect-related losses in tin perovskites. This method proved invaluable in guiding the optimization of both the materials and the device architecture, facilitating significant improvements in efficiency and stability.
3. Simulations for Charge Transport and Recombination
A key outcome of the project was the development of a robust simulation tool designed to model charge extraction, transport, and recombination in tin-based perovskite solar cells. This tool, based on fundamental physical principles, allowed for the prediction of device performance under different operational conditions.
The simulations provided valuable insights into the behavior of charge carriers within the perovskite layers and helped identify optimal device configurations. It also addressed fundamental questions about charge transport and recombination, which were previously difficult to study in real devices. The model informed the experimental design, leading to further optimization and improved device performance.
4. Optimization of Material and Device Architectures
Throughout the project, substantial improvements were made to both the materials and the device architectures. The team developed new self-assembled monolayers (SAMs) to be used as interface layers in the solar cells. These SAMs were engineered to tailor the energy level alignment between the perovskite material and the electrode, improving charge extraction and minimizing energy losses at the interfaces.
The integration of SAMs into the device architecture led to improved stability and efficiency. The resulting solar cells exhibited enhanced resistance to degradation under operational conditions, overcoming one of the major challenges faced by tin-based perovskites in commercial applications.
5. Record-Breaking Performance of Tin Perovskite Solar Cells
By combining the optimized material synthesis, advanced characterization techniques, and simulation tools, the project achieved a significant milestone: tin perovskite solar cells reached record-breaking power conversion efficiencies (PCE). This achievement surpassed previous benchmarks for tin-based devices and positioned them as a promising alternative to other photovoltaic technologies.
These devices not only exhibited improved efficiency but also demonstrated enhanced long-term stability. This performance marks a critical step towards the widespread application of tin-based perovskite solar cells as a sustainable, high-efficiency technology in the renewable energy sector.
6. Patenting of the CLIMAT Method and Other Innovations
The CLIMAT method was patented by the project team, with the European patent being successfully approved. This method, which provides a comprehensive analysis of charge transport and recombination processes in perovskite materials, represents a significant innovation in the field. CLIMAT is expected to be a valuable tool for future research and development, enabling more efficient characterization of perovskite-based devices and contributing to further improvements in solar cell technology.
In addition to CLIMAT, the project led to the development of other innovative methods and tools that will benefit the wider scientific community. These innovations have the potential to drive further advancements in perovskite solar cells, as well as in other materials and device systems.
1. Development of Tin Perovskite Solar Cells with Enhanced Efficiency
One of the primary objectives of the project was to improve the efficiency of tin-based perovskite solar cells. Although tin perovskites are considered environmentally safer alternatives to lead-based perovskites, they have typically shown lower power conversion efficiencies (PCE). The project introduced a novel method for synthesizing and processing tin perovskites that significantly enhanced their efficiency.
Through optimization of the material’s crystallization process, key improvements were made in charge transport and overall device performance. The project team reduced structural defects in the perovskite material, enhancing its optoelectronic properties, and achieved a breakthrough in efficiency. For the first time, tin-based solar cells achieved efficiencies that surpassed those of the state-of-the-art PEDOT-based devices, marking a significant advancement in the field.
2. Development of the CLIMAT Method for Advanced Characterization
A crucial breakthrough was the development of the Constant Light-Induced Magneto-Transport (CLIMAT) method. This method allows for the simultaneous measurement of multiple material parameters, providing a comprehensive understanding of charge dynamics and material behavior under operational conditions. The CLIMAT method enabled the team to probe the behavior of perovskite materials, helping to identify factors that limit their performance.
By using CLIMAT, the team gained real-time data on charge carrier mobility, recombination rates, and defect-related losses in tin perovskites. This method proved invaluable in guiding the optimization of both the materials and the device architecture, facilitating significant improvements in efficiency and stability.
3. Simulations for Charge Transport and Recombination
A key outcome of the project was the development of a robust simulation tool designed to model charge extraction, transport, and recombination in tin-based perovskite solar cells. This tool, based on fundamental physical principles, allowed for the prediction of device performance under different operational conditions.
The simulations provided valuable insights into the behavior of charge carriers within the perovskite layers and helped identify optimal device configurations. It also addressed fundamental questions about charge transport and recombination, which were previously difficult to study in real devices. The model informed the experimental design, leading to further optimization and improved device performance.
4. Optimization of Material and Device Architectures
Throughout the project, substantial improvements were made to both the materials and the device architectures. The team developed new self-assembled monolayers (SAMs) to be used as interface layers in the solar cells. These SAMs were engineered to tailor the energy level alignment between the perovskite material and the electrode, improving charge extraction and minimizing energy losses at the interfaces.
The integration of SAMs into the device architecture led to improved stability and efficiency. The resulting solar cells exhibited enhanced resistance to degradation under operational conditions, overcoming one of the major challenges faced by tin-based perovskites in commercial applications.
5. Record-Breaking Performance of Tin Perovskite Solar Cells
By combining the optimized material synthesis, advanced characterization techniques, and simulation tools, the project achieved a significant milestone: tin perovskite solar cells reached record-breaking power conversion efficiencies (PCE). This achievement surpassed previous benchmarks for tin-based devices and positioned them as a promising alternative to other photovoltaic technologies.
These devices not only exhibited improved efficiency but also demonstrated enhanced long-term stability. This performance marks a critical step towards the widespread application of tin-based perovskite solar cells as a sustainable, high-efficiency technology in the renewable energy sector.
6. Patenting of the CLIMAT Method and Other Innovations
The CLIMAT method was patented by the project team, with the European patent being successfully approved. This method, which provides a comprehensive analysis of charge transport and recombination processes in perovskite materials, represents a significant innovation in the field. CLIMAT is expected to be a valuable tool for future research and development, enabling more efficient characterization of perovskite-based devices and contributing to further improvements in solar cell technology.
In addition to CLIMAT, the project led to the development of other innovative methods and tools that will benefit the wider scientific community. These innovations have the potential to drive further advancements in perovskite solar cells, as well as in other materials and device systems.
Progress beyond the state of the art and expected potential impact (including the socio-economic impact and the wider societal implications of the project so far)
The results of the project represent a significant achievement in the development of tin-based perovskite solar cells, with notable improvements in efficiency, stability, and advanced characterization techniques. These breakthroughs hold considerable potential for advancing photovoltaic technologies and offer a more environmentally sustainable alternative to lead-based perovskites. The results achieved and their potential impacts are outlined below.
1. Enhanced Efficiency and Stability of Tin Perovskite Solar Cells
One of the primary outcomes of the project was the marked improvement in the efficiency of tin-based perovskite solar cells, which now outperform state-of-the-art PEDOT-based devices. These advanced tin perovskite devices not only exhibit improved efficiency but also enhanced stability, addressing one of the major challenges for tin perovskites in commercial applications.
This advancement has the potential to significantly impact the renewable energy sector, as tin-based perovskites offer a more environmentally friendly alternative to lead-based materials. Their improved performance and stability position them for broader adoption in the solar energy market, thereby contributing to efforts aimed at reducing global carbon emissions and accelerating the transition to clean energy sources.
2. Development of the CLIMAT Method for Advanced Material Characterization
Another key result of the project was the successful development of the Constant Light-Induced Magneto-Transport (CLIMAT) method, a powerful new tool that enables the simultaneous measurement of multiple material parameters, offering valuable insights into charge transport, mobility, and recombination processes in perovskite materials.
The potential impact of CLIMAT is vast, as the method can be applied to a wide range of photovoltaic materials, including other emerging technologies beyond perovskites. By enabling more efficient and comprehensive material characterization, CLIMAT can accelerate the development of next-generation solar cells and reduce the time and cost associated with optimizing new materials.
3. Simulations for Charge Transport and Recombination in Perovskite Solar Cells
In addition to experimental advancements, the project also developed simulation tools that model charge transport and recombination in perovskite solar cells. These tools have proven essential in guiding the design of higher-performing devices and in optimizing the material properties for improved charge extraction and reduced recombination losses.
These simulation results are poised to help direct future material development efforts, allowing researchers and developers to focus on the most promising candidates for enhancing photovoltaic performance. This work is expected to speed up the material discovery process, paving the way for the next generation of more efficient and cost-effective solar technologies.
4. Intellectual Property (IP) and Patent Protection
A significant outcome of the project was the successful patenting of the CLIMAT method and other innovations developed throughout the course of the research. This intellectual property (IP) is now protected by a European patent, ensuring that the project’s results are safeguarded and can be exploited commercially.
The IP protection opens opportunities for licensing and commercial partnerships, which will facilitate the broader adoption of the CLIMAT method in the solar energy sector, contributing to the commercialization of these groundbreaking technologies.
5. Commercialization and Market Uptake Potential
Although the project has produced significant scientific and technical breakthroughs, the commercialization of tin-based perovskite solar cells and the CLIMAT method requires further action in several key areas:
• Further Research and Demonstration: To transition from laboratory-scale results to large-scale commercial applications, additional research is necessary to scale up production methods for tin perovskite solar cells. This includes improving device fabrication techniques and enhancing long-term stability under real-world conditions.
• Access to Markets and Finance: The successful commercialization of these innovations will depend on securing funding and forming strategic partnerships with industry players. Both public and private investments will be essential for scaling production and creating the infrastructure needed for widespread adoption.
• Regulatory and Standardization Framework: A clear regulatory and standardization framework will be crucial for the successful market adoption of tin-based perovskite solar cells. Ensuring that these devices meet international standards and are recognized by relevant certifications will help build trust among manufacturers, investors, and consumers.
• Intellectual Property Support: As the patenting of the CLIMAT method secures the project's innovations, continued support for IP management will be vital for facilitating commercialization. Licensing agreements and partnerships with industry will allow the project’s results to be integrated into the broader market.
• International Collaboration and Market Expansion: As the demand for clean energy technologies grows globally, international collaborations will be vital to ensure the rapid and widespread deployment of these new solar technologies. The results of this project can benefit from engagement with global research institutions, industry leaders, and government agencies to expand the reach and impact of the innovations.
6. Broader Implications for the Research Landscape
In addition to the direct impact on the solar energy sector, the project’s results contribute to the broader field of material science. The development of advanced characterization methods like CLIMAT, as well as insights into charge transport and recombination, will help inform research in other fields, such as optoelectronics, sensors, and light-emitting devices. These contributions have the potential to accelerate the development of new technologies across multiple industries, enhancing the overall impact of the project.
7. Environmental and Societal Impact
The environmental impact of the project is significant, as it directly addresses the need for more sustainable photovoltaic technologies. The use of tin-based perovskites instead of lead reduces the environmental and toxicity risks associated with the material, offering a safer alternative for large-scale solar cell production. The successful commercialization of these solar cells could contribute to a significant reduction in greenhouse gas emissions, supporting global efforts to combat climate change and promote renewable energy.
Furthermore, the project’s impact on society extends beyond technological advancements, as it offers the potential for job creation in the clean energy sector and could help improve energy security across various regions. The widespread adoption of advanced solar technologies could democratize access to affordable, clean energy, benefiting communities and individuals globally.
1. Enhanced Efficiency and Stability of Tin Perovskite Solar Cells
One of the primary outcomes of the project was the marked improvement in the efficiency of tin-based perovskite solar cells, which now outperform state-of-the-art PEDOT-based devices. These advanced tin perovskite devices not only exhibit improved efficiency but also enhanced stability, addressing one of the major challenges for tin perovskites in commercial applications.
This advancement has the potential to significantly impact the renewable energy sector, as tin-based perovskites offer a more environmentally friendly alternative to lead-based materials. Their improved performance and stability position them for broader adoption in the solar energy market, thereby contributing to efforts aimed at reducing global carbon emissions and accelerating the transition to clean energy sources.
2. Development of the CLIMAT Method for Advanced Material Characterization
Another key result of the project was the successful development of the Constant Light-Induced Magneto-Transport (CLIMAT) method, a powerful new tool that enables the simultaneous measurement of multiple material parameters, offering valuable insights into charge transport, mobility, and recombination processes in perovskite materials.
The potential impact of CLIMAT is vast, as the method can be applied to a wide range of photovoltaic materials, including other emerging technologies beyond perovskites. By enabling more efficient and comprehensive material characterization, CLIMAT can accelerate the development of next-generation solar cells and reduce the time and cost associated with optimizing new materials.
3. Simulations for Charge Transport and Recombination in Perovskite Solar Cells
In addition to experimental advancements, the project also developed simulation tools that model charge transport and recombination in perovskite solar cells. These tools have proven essential in guiding the design of higher-performing devices and in optimizing the material properties for improved charge extraction and reduced recombination losses.
These simulation results are poised to help direct future material development efforts, allowing researchers and developers to focus on the most promising candidates for enhancing photovoltaic performance. This work is expected to speed up the material discovery process, paving the way for the next generation of more efficient and cost-effective solar technologies.
4. Intellectual Property (IP) and Patent Protection
A significant outcome of the project was the successful patenting of the CLIMAT method and other innovations developed throughout the course of the research. This intellectual property (IP) is now protected by a European patent, ensuring that the project’s results are safeguarded and can be exploited commercially.
The IP protection opens opportunities for licensing and commercial partnerships, which will facilitate the broader adoption of the CLIMAT method in the solar energy sector, contributing to the commercialization of these groundbreaking technologies.
5. Commercialization and Market Uptake Potential
Although the project has produced significant scientific and technical breakthroughs, the commercialization of tin-based perovskite solar cells and the CLIMAT method requires further action in several key areas:
• Further Research and Demonstration: To transition from laboratory-scale results to large-scale commercial applications, additional research is necessary to scale up production methods for tin perovskite solar cells. This includes improving device fabrication techniques and enhancing long-term stability under real-world conditions.
• Access to Markets and Finance: The successful commercialization of these innovations will depend on securing funding and forming strategic partnerships with industry players. Both public and private investments will be essential for scaling production and creating the infrastructure needed for widespread adoption.
• Regulatory and Standardization Framework: A clear regulatory and standardization framework will be crucial for the successful market adoption of tin-based perovskite solar cells. Ensuring that these devices meet international standards and are recognized by relevant certifications will help build trust among manufacturers, investors, and consumers.
• Intellectual Property Support: As the patenting of the CLIMAT method secures the project's innovations, continued support for IP management will be vital for facilitating commercialization. Licensing agreements and partnerships with industry will allow the project’s results to be integrated into the broader market.
• International Collaboration and Market Expansion: As the demand for clean energy technologies grows globally, international collaborations will be vital to ensure the rapid and widespread deployment of these new solar technologies. The results of this project can benefit from engagement with global research institutions, industry leaders, and government agencies to expand the reach and impact of the innovations.
6. Broader Implications for the Research Landscape
In addition to the direct impact on the solar energy sector, the project’s results contribute to the broader field of material science. The development of advanced characterization methods like CLIMAT, as well as insights into charge transport and recombination, will help inform research in other fields, such as optoelectronics, sensors, and light-emitting devices. These contributions have the potential to accelerate the development of new technologies across multiple industries, enhancing the overall impact of the project.
7. Environmental and Societal Impact
The environmental impact of the project is significant, as it directly addresses the need for more sustainable photovoltaic technologies. The use of tin-based perovskites instead of lead reduces the environmental and toxicity risks associated with the material, offering a safer alternative for large-scale solar cell production. The successful commercialization of these solar cells could contribute to a significant reduction in greenhouse gas emissions, supporting global efforts to combat climate change and promote renewable energy.
Furthermore, the project’s impact on society extends beyond technological advancements, as it offers the potential for job creation in the clean energy sector and could help improve energy security across various regions. The widespread adoption of advanced solar technologies could democratize access to affordable, clean energy, benefiting communities and individuals globally.