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CORDIS

Stable Inorganic TAndem solar cell with superior device efficiency and increased durability

CORDIS provides links to public deliverables and publications of HORIZON projects.

Links to deliverables and publications from FP7 projects, as well as links to some specific result types such as dataset and software, are dynamically retrieved from OpenAIRE .

Deliverables

A life cycle analysis for the SITA tandem module (opens in new window)

A life cycle analysis for the SITA tandem module. The LCA will be performed in accordance with the ISO standard. The ISO standard includes the four steps: Goal and scope definition, Inventory analysis, Impact assessment and Interpretation of results.

Report/Paper submitted on new transparent cell with 17% eff, followed by journal publication (opens in new window)

The achievement of a transparent cell with 17% eff, will be a stepping stone for further development up to at least 18 % efficiency for a transparent top cell. The results will be published in a high ranked journal with peer review with open access after review of results by the IP management committee.

Report/Paper submitted on new efficient, highly transparent cell with band gap above 1.5 eV, followed by journal publication (opens in new window)

Report/Paper submitted on new efficient, highly transparent cell with bandgap above 1.5 eV, followed by journal publication in an open access journal with peer review. The 1.5 V is a stepping stone towards higher bandgaps. The results will first be reviewed by the IP Management Committee.

Paper submitted on efficient Circuitry 2T tandem prototype with efficiency >30% (opens in new window)

Paper submitted on efficient Circuitry 2T tandem prototype with efficiency>30%. The deliverable is a report based on a device, which is characterized to the efficiency which constitutes the final goal of the project.

Report on feasibility for different applications for SITA´s technology (opens in new window)

Report on feasibility for different applications for SITA´s technology. This deliverable aims to identify premium high value applications, that will be feasible during up-scaling of the new technology.

Paper submitted on new record cell with bandgap above 1.5 eV, ≥18% efficiency and 80% T (below the bandgap) (opens in new window)

Paper submitted on new record cell with bandgap above 1.5 eV, ≥18%efficiency and 80% T (below the bandgap)

Updated Plan for Dissemination, Exploitation and Communication (opens in new window)

Updated Plan for Dissemination, Exploitation and Communication. The deliverable for month 6 focusses mainly on early branding, dissemination of research of the different partners and establishing the project website. The Exploitation task is mainly dedicated to finding a procedure for further exploitation not on the exploitation itself.

Paper submitted on Bonded 2T tandem prototype with efficiency >30% (opens in new window)

Paper submitted on efficient Bonded 2T tandem prototype with efficiency>30%. The deliverable is a report based on a device, which is characterized to the efficiency which constitutes the final goal of the project.

Project Website (opens in new window)

The SITA project website will present the project, with the aim to maximize the visibility of the project. The aim is to reach out and inform the society and demonstrate the contribution of EU funding to grand societal challenges. A SITA logotype will be part of the branding and website work.

Data management plan (opens in new window)

Data management plan includes management of the DMP.OPIDoR, a tool or online creation of the DMP. The deliverable includes choice of suitable platform for storage of open data as well as procedures for curating of data.

Publications

Effect of Ordered Vacancy Compounds on the Carrier Collection in Wide-Gap (Ag,Cu)(In,Ga)Se₂ Solar Cells (opens in new window)

Author(s): Jan Keller, Natalia Martin, Olivier Donzel-Gargand, Klara Kiselman, Uwe Zimmermann, et al.
Published in: Solar RRL, 2024, ISSN 2367-198X
Publisher: Wiley
DOI: 10.1002/SOLR.202301018

ACS applied materials & interfaces (opens in new window)

Author(s): Angelika Demling, Rico Gutzler, Cristiana Filipa Almeida Alves, Regan G. Wilks, Roberto Félix, et al.
Published in: ACS Applied Materials & Interfaces, Issue 17/22, 2025, ISSN 1944-8244
Publisher: American Chemical Society
DOI: 10.1021/ACSAMI.5C02315

Near 13% Efficient Semitransparent Cu(In,Ga)S <sub>2</sub> Solar Cells With Band Gap of 1.6 eV on Transparent Back Contact (opens in new window)

Author(s): Kulwinder Kaur, Arivazhagan Valluvar Oli, Michele Melchiorre, Wolfram Hempel, Wolfram Witte, Jan Keller, Susanne Siebentritt
Published in: Progress in Photovoltaics: Research and Applications, 2026, ISSN 1062-7995
Publisher: Wiley
DOI: 10.1002/PIP.70122

Effect of RbF post-deposition treatment on open-circuit voltage in wide-gap (Ag,Cu)(In,Ga)Se2 solar cells (opens in new window)

Author(s): Rico Gutzler, Saeed Bayat, Dimitrios Hariskos, Ana Kanevce, Wolfram Hempel, Stefan Paetel, Susanne Siebentritt, Wolfram Witte
Published in: EES Solar, Issue 2, 2026, ISSN 3033-4063
Publisher: Royal Society of Chemistry (RSC)
DOI: 10.1039/D5EL00176E

Enhancing photocurrent collection in wide-gap ACIGS solar cells (opens in new window)

Author(s): Matthias Diethelm, Ceren Mitmit, Carl Hägglund, Mirjana Dimitrievska, Wouter Vels, Sevan Gharabeiki, null Nisika, Jan Keller, Romain Carron
Published in: Journal of Physics: Energy, Issue 8, 2025, ISSN 2515-7655
Publisher: IOP Publishing
DOI: 10.1088/2515-7655/AE13C1

Precise Alkali Supply during and after Growth for High-Performance Low Bandgap (Ag,Cu)InSe₂ Solar Cells (opens in new window)

Author(s): M. Krause, S. Moser, C. Mitmit, S. Nishiwaki, A. N. Tiwari, R. Carron
Published in: Solar RRL, Issue 8 (Article 2400077), 2024, ISSN 2367-198X
Publisher: Wiley
DOI: 10.1002/SOLR.202400077

Effect of top cell absorber thickness and bifacial illumination on monolithic (Ag,Cu)(In,Ga)Se₂/Si tandem solar cells (opens in new window)

Author(s): Julia Horstmann, Mario Hanser, Jana-Isabelle Polzin, Matthias Maiberg, Roland Scheer, et al.
Published in: Journal of Physics: Energy, Issue 7(4):045004, 2025, ISSN 2515-7655
Publisher: IOP Publishing
DOI: 10.1088/2515-7655/ADEAE5

Silver‐Alloyed Wide‐Bandgap (Ag,Cu)(In,Ga)S <sub>2</sub> Thin‐Film Solar Cells With 15.5% Efficiency (opens in new window)

Author(s): Yucheng Hu, Ece Washbrook, Arivazhagan Valluvar Oli, Andrea Griesi, Yurii P. Ivanov, Mariam Pelling, Simon M. Fairclough, Kulwinder Kaur, Michele Melchiorre, Adam Hultqvist, Tobias Törndahl, Wolfram Hempel, Wolfram Witte, Giorgio Divitini, Susanne Siebentritt, Rachel A. Oliver, Gunnar Kusch
Published in: Progress in Photovoltaics: Research and Applications, 2026, ISSN 1062-7995
Publisher: Wiley
DOI: 10.1002/PIP.70097

The effect of the substrate on KF post deposition treatments of narrow gap Cu(In,Ga)Se₂ absorber layers (opens in new window)

Author(s): Jessica de Wild, Guy Brammertz, Tim Oris, Tom Aernouts, Bart Vermang
Published in: Journal of Physics: Energy, Issue 7(4):045011, 2025, ISSN 2515-7655
Publisher: IOP Publishing
DOI: 10.1088/2515-7655/ADEAE6

Sodium Induced Beneficial Effects in Wide Bandgap Cu(In,Ga)S 2 Solar Cell With 15.7% Efficiency (opens in new window)

Author(s): Arivazhagan Valluvar Oli, Kulwinder Kaur, Michele Melchiorre, Aubin Jean-Claude Mireille Prot, Sevan Gharabeiki, Yucheng Hu, Gunnar Kusch, Adam Hultqvist, Tobias Törndahl, Wolfram Hempel, Wolfram Witte, Rachel A. Oliver, Susanne Siebentritt.
Published in: Progress in Photovoltaics: Research and Applications, Issue 4, 2025, ISSN 1099-159X
Publisher: Wiley
DOI: 10.1002/pip.70033

High-Mobility and Low Carrier Concentration Transparent Conducting Oxide Rear Contact for Bifacial CIGS Solar Cells (opens in new window)

Author(s): Nisika Nisika, Shiro Nishiwaki, Ceren Mitmit, Matteo De Marzi, Kerem Artuk, Christian Michael Wolff, Romain Carron
Published in: Progress in Photovoltaics: Research and Applications, Issue 34/5, 2026, ISSN 1099-159X
Publisher: Wiley
DOI: 10.1002/PIP.70061

Zn <sub> 1− <i>x</i> </sub> Sn <sub> <i>x</i> </sub> O <sub> <i>y</i> </sub> Buffer Layer Deposited by Chemical Bath Deposition for Low and Wide Bandgap Cu(In, Ga)Se <sub>2</sub> Solar Cells (opens in new window)

Author(s): Diego A. Garzón, Rafael Cerqueira, Cristiana F. Almeida Alves, Ana Margarida Moura, Jan Keller, Marika Edoff, Francis Leonard Deepak, Sascha Sadewasser
Published in: Advanced Energy and Sustainability Research, Issue 7, 2026, ISSN 2699-9412
Publisher: Wiley
DOI: 10.1002/AESR.202500307

Bifacial Wide-Gap (Ag,Cu)(In,Ga)Se₂ Solar Cell with 13.6% Efficiency Using In₂O₃:W as a Back Contact Material (opens in new window)

Author(s): Jan Keller, Lars Stolt, Olivier Donzel-Gargand, André Violas, Tomas Kubart, et al.
Published in: Solar RRL, Issue 8/15, 2024, ISSN 2367-198X
Publisher: Wiley
DOI: 10.1002/SOLR.202400430

Ultrathin AlOx Films for Back Contact Passivation in Bifacial Wide-Gap (Ag,Cu)(In,Ga)Se₂ Solar Cells (opens in new window)

Author(s): Jan Keller, Sapna Mudgal, Carl Hägglund, Klara Kiselman, Marika Edoff
Published in: Solar RRL, Issue 9/11, 2025, ISSN 2367-198X
Publisher: Wiley
DOI: 10.1002/SOLR.202500101

Silver Alloying in Highly Efficient CuGaSe2 Solar Cells with Different Buffer Layers (opens in new window)

Author(s): Jan Keller, Lars Stolt, Tobias Törndahl, Marika Edoff
Published in: Solar RRL, Issue 2300208, 2023, ISSN 2367-198X
Publisher: Wiley
DOI: 10.1002/solr.202300208

Rubidium Fluoride Absorber Treatment for Wide-Gap and Bifacial Ag(In,Ga)Se₂ Solar Cells (opens in new window)

Author(s): Jan Keller, Sapna Mudgal, Natalia Martin, Olivier Donzel-Gargand, Marika Edoff
Published in: Solar RRL, Issue Volume9, Issue16, 2025, ISSN 2367-198X
Publisher: Wiley
DOI: 10.1002/SOLR.202500423

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