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Super high efficiency Cu(In,Ga)Se2 thin-film solar cells approaching 25%

Deliverables

1st Workshop on the commercialization potential of new CIGS PV technologies

Organize and conduct a Workshop with international attendees from the thin-film community. Provide new results from Sharc25 and progress in CIGS technology to the interested experts.

Public part of Sharc25 website launched and fully functional

Website with Shac25-related project informations like project partners, project goals, contact persons, and news section is online.

Flyer or brochure for public information available

Flyer or brochure with Shac25-related project informations (similar to D7.5) printed and available for distribution.

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Publications

IZO or IOH Window Layers Combined with Zn(O,S) and CdS Buffers for Cu(In,Ga)Se 2 Solar Cells

Author(s): Wolfram Witte, Romain Carron, Dimitrios Hariskos, Fan Fu, Richard Menner, Stephan Buecheler
Published in: physica status solidi (a), Issue 214/12, 2017, Page(s) 1700688, ISSN 1862-6300
DOI: 10.1002/pssa.201700688

Effects of Rubidium Fluoride and Potassium Fluoride Postdeposition Treatments on Cu(In,Ga)Se 2 Thin Films and Solar Cell Performance

Author(s): Enrico Avancini, Romain Carron, Thomas P. Weiss, Christian Andres, Melanie Bürki, Claudia Schreiner, Renato Figi, Yaroslav E. Romanyuk, Stephan Buecheler, Ayodhya N. Tiwari
Published in: Chemistry of Materials, Issue 29/22, 2017, Page(s) 9695-9704, ISSN 0897-4756
DOI: 10.1021/acs.chemmater.7b03412

TiO 2 as intermediate buffer layer in Cu(In,Ga)Se 2 solar cells

Author(s): Johannes Löckinger, Shiro Nishiwaki, Thomas P. Weiss, Benjamin Bissig, Yaroslav E. Romanyuk, Stephan Buecheler, Ayodhya N. Tiwari
Published in: Solar Energy Materials and Solar Cells, Issue 174, 2018, Page(s) 397-404, ISSN 0927-0248
DOI: 10.1016/j.solmat.2017.09.030

Voltage dependent admittance spectroscopy for the detection of near interface defect states for thin film solar cells

Author(s): Thomas Paul Weiss, Shiro Nishiwaki, Benjamin Bissig, Stephan Buecheler, Ayodhya N. Tiwari
Published in: Physical Chemistry Chemical Physics, Issue 19/45, 2017, Page(s) 30410-30417, ISSN 1463-9076
DOI: 10.1039/c7cp05236g

Evidence for Chemical and Electronic Nonuniformities in the Formation of the Interface of RbF-Treated Cu(In,Ga)Se 2 with CdS

Author(s): Nicoleta Nicoara, Thomas Kunze, Philip Jackson, Dimitrios Hariskos, Roberto Félix Duarte, Regan G. Wilks, Wolfram Witte, Marcus Bär, Sascha Sadewasser
Published in: ACS Applied Materials & Interfaces, Issue 9/50, 2017, Page(s) 44173-44180, ISSN 1944-8244
DOI: 10.1021/acsami.7b12448

Injection Current Barrier Formation for RbF Postdeposition-Treated Cu(In,Ga)Se 2 -Based Solar Cells

Author(s): Thomas Paul Weiss, Shiro Nishiwaki, Benjamin Bissig, Romain Carron, Enrico Avancini, Johannes Löckinger, Stephan Buecheler, Ayodhya N. Tiwari
Published in: Advanced Materials Interfaces, 2017, Page(s) 1701007, ISSN 2196-7350
DOI: 10.1002/admi.201701007

Rubidium distribution at atomic scale in high efficient Cu(In,Ga)Se 2 thin-film solar cells

Author(s): Arantxa Vilalta-Clemente, Mohit Raghuwanshi, Sébastien Duguay, Celia Castro, Emmanuel Cadel, Philippe Pareige, Philip Jackson, Roland Wuerz, Dimitrios Hariskos, Wolfram Witte
Published in: Applied Physics Letters, Issue 112/10, 2018, Page(s) 103105, ISSN 0003-6951
DOI: 10.1063/1.5020805

Effects of heavy alkali elements in Cu(In,Ga)Se 2 solar cells with efficiencies up to 22.6%

Author(s): Philip Jackson, Roland Wuerz, Dimitrios Hariskos, Erwin Lotter, Wolfram Witte, Michael Powalla
Published in: physica status solidi (RRL) - Rapid Research Letters, Issue 10/8, 2016, Page(s) 583-586, ISSN 1862-6254
DOI: 10.1002/pssr.201600199

Refractive indices of layers and optical simulations of Cu(In,Ga)Se 2 solar cells

Author(s): Romain Carron, Enrico Avancini, Thomas Feurer, Benjamin Bissig, Paolo A. Losio, Renato Figi, Claudia Schreiner, Melanie Bürki, Emilie Bourgeois, Zdenek Remes, Milos Nesladek, Stephan Buecheler, Ayodhya N. Tiwari
Published in: Science and Technology of Advanced Materials, Issue 19/1, 2018, Page(s) 396-410, ISSN 1468-6996
DOI: 10.1080/14686996.2018.1458579

Alkali treatments of Cu(In,Ga)Se 2 thin-film absorbers and their impact on transport barriers

Author(s): Florian Werner, Max Hilaire Wolter, Susanne Siebentritt, Giovanna Sozzi, Simone Di Napoli, Roberto Menozzi, Philip Jackson, Wolfram Witte, Romain Carron, Enrico Avancini, Thomas Paul Weiss, Stephan Buecheler
Published in: Progress in Photovoltaics: Research and Applications, Issue 26/11, 2018, Page(s) 911-923, ISSN 1062-7995
DOI: 10.1002/pip.3032

Influence of Sodium and Rubidium Postdeposition Treatment on the Quasi-Fermi Level Splitting of Cu(In,Ga)Se2 Thin Films

Author(s): Max Hilaire Wolter, Benjamin Bissig, Enrico Avancini, Romain Carron, Stephan Buecheler, Philip Jackson, Susanne Siebentritt
Published in: IEEE Journal of Photovoltaics, Issue 8/5, 2018, Page(s) 1-6, ISSN 2156-3381
DOI: 10.1109/JPHOTOV.2018.2855113

Novel back contact reflector for high efficiency and double-graded Cu(In,Ga)Se 2 thin-film solar cells

Author(s): Benjamin Bissig, Romain Carron, Lukas Greuter, Shiro Nishiwaki, Enrico Avancini, Christian Andres, Thomas Feurer, Stephan Buecheler, Ayodhya N. Tiwari
Published in: Progress in Photovoltaics: Research and Applications, Issue 26/11, 2018, Page(s) 894-900, ISSN 1062-7995
DOI: 10.1002/pip.3029

Diffusion of Rb in polycrystalline Cu(In,Ga)Se 2 layers and effect of Rb on solar cell parameters of Cu(In,Ga)Se 2 thin-film solar cells

Author(s): R. Wuerz, W. Hempel, P. Jackson
Published in: Journal of Applied Physics, Issue 124/16, 2018, Page(s) 165305, ISSN 0021-8979
DOI: 10.1063/1.5044629

Voids and compositional inhomogeneities in Cu(In,Ga)Se 2 thin films: evolution during growth and impact on solar cell performance

Author(s): Enrico Avancini, Debora Keller, Romain Carron, Yadira Arroyo-Rojas Dasilva, Rolf Erni, Agnieszka Priebe, Simone Di Napoli, Martina Carrisi, Giovanna Sozzi, Roberto Menozzi, Fan Fu, Stephan Buecheler, Ayodhya N. Tiwari
Published in: Science and Technology of Advanced Materials, Issue 19/1, 2018, Page(s) 871-882, ISSN 1468-6996
DOI: 10.1080/14686996.2018.1536679

RbF post deposition treatment for narrow bandgap Cu(In,Ga)Se2 solar cells

Author(s): Thomas Feurer, Fan Fu, Thomas Paul Weiss, Enrico Avancini, Johannes Löckinger, Stephan Buecheler, Ayodhya N. Tiwari
Published in: Thin Solid Films, Issue 670, 2019, Page(s) 34-40, ISSN 0040-6090
DOI: 10.1016/j.tsf.2018.12.003

Bandgap of thin film solar cell absorbers: A comparison of various determination methods

Author(s): Romain Carron, Christian Andres, Enrico Avancini, Thomas Feurer, Shiro Nishiwaki, Stefano Pisoni, Fan Fu, Martina Lingg, Yaroslav E. Romanyuk, Stephan Buecheler, Ayodhya N. Tiwari
Published in: Thin Solid Films, Issue 669, 2019, Page(s) 482-486, ISSN 0040-6090
DOI: 10.1016/j.tsf.2018.11.017

ALD-Zn x Ti y O as Window Layer in Cu(In,Ga)Se 2 Solar Cells

Author(s): Johannes Löckinger, Shiro Nishiwaki, Christian Andres, Rolf Erni, Marta D. Rossell, Yaroslav E. Romanyuk, Stephan Buecheler, Ayodhya N. Tiwari
Published in: ACS Applied Materials & Interfaces, Issue 10/50, 2018, Page(s) 43603-43609, ISSN 1944-8244
DOI: 10.1021/acsami.8b14490

Alkali Postdeposition Treatment-Induced Changes of the Chemical and Electronic Structure of Cu(In,Ga)Se 2 Thin-Film Solar Cell Absorbers: A First-Principle Perspective

Author(s): Maria Malitckaya, Thomas Kunze, Hannu-Pekka Komsa, Ville Havu, Evelyn Handick, Regan G. Wilks, Marcus Bär, Martti J. Puska
Published in: ACS Applied Materials & Interfaces, Issue 11/3, 2019, Page(s) 3024−3033, ISSN 1944-8244
DOI: 10.1021/acsami.8b18216

Formation of a K—In—Se Surface Species by NaF/KF Postdeposition Treatment of Cu(In,Ga)Se 2 Thin-Film Solar Cell Absorbers

Author(s): Evelyn Handick, Patrick Reinhard, Regan G. Wilks, Fabian Pianezzi, Thomas Kunze, Dagmar Kreikemeyer-Lorenzo, Lothar Weinhardt, Monika Blum, Wanli Yang, Mihaela Gorgoi, Eiji Ikenaga, Dominic Gerlach, Shigenori Ueda, Yoshiyuki Yamashita, Toyohiro Chikyow, Clemens Heske, Stephan Buecheler, Ayodhya N. Tiwari, Marcus Bär
Published in: ACS Applied Materials & Interfaces, Issue 9/4, 2017, Page(s) 3581-3589, ISSN 1944-8244
DOI: 10.1021/acsami.6b11892

Time-resolved photoluminescence on double graded Cu(In,Ga)Se 2 – Impact of front surface recombination and its temperature dependence

Author(s): Thomas Paul Weiss, Romain Carron, Max H. Wolter, Johannes Löckinger, Enrico Avancini, Susanne Siebentritt, Stephan Buecheler, Ayodhya N. Tiwari
Published in: Science and Technology of Advanced Materials, Issue 20/1, 2019, Page(s) 313-323, ISSN 1468-6996
DOI: 10.1080/14686996.2019.1586583

Influence of RbF post deposition treatment on heterojunction and grain boundaries in high efficient (21.1%) Cu(In,Ga)Se2 solar cells

Author(s): Mohit Raghuwanshi, Arantxa Vilalta-Clemente, Celia Castro, Sébastien Duguay, Emmanuel Cadel, Philip Jackson, Dimitrios Hariskos, Wolfram Witte, Philippe Pareige
Published in: Nano Energy, Issue 60, 2019, Page(s) 103-110, ISSN 2211-2855
DOI: 10.1016/j.nanoen.2019.03.028

The use of HfO2 in a point contact concept for front interface passivation of Cu(In,Ga)Se2 solar cells

Author(s): Johannes Löckinger, Shiro Nishiwaki, Benjamin Bissig, Giedrius Degutis, Yaroslav E. Romanyuk, Stephan Buecheler, Ayodhya N. Tiwari
Published in: Solar Energy Materials and Solar Cells, Issue 195, 2019, Page(s) 213-219, ISSN 0927-0248
DOI: 10.1016/j.solmat.2019.03.009

Bulk and surface recombination properties in thin film semiconductors with different surface treatments from time-resolved photoluminescence measurements

Author(s): Thomas P. Weiss, Benjamin Bissig, Thomas Feurer, Romain Carron, Stephan Buecheler, Ayodhya N. Tiwari
Published in: Scientific Reports, Issue 9/1, 2019, Page(s) 5385, ISSN 2045-2322
DOI: 10.1038/s41598-019-41716-x

Advanced Alkali Treatments for High‐Efficiency Cu(In,Ga)Se 2 Solar Cells on Flexible Substrates

Author(s): Romain Carron, Shiro Nishiwaki, Thomas Feurer, Ramis Hertwig, Enrico Avancini, Johannes Löckinger, Shih‐Chi Yang, Stephan Buecheler, Ayodhya N. Tiwari
Published in: Advanced Energy Materials, 2019, Page(s) 1900408, ISSN 1614-6832
DOI: 10.1002/aenm.201900408

Giant V oc Boost of Low‐Temperature Annealed Cu(In,Ga)Se 2 with Sputtered Zn(O,S) Buffers

Author(s): Marco Zutter, Jose Virtuoso, Pedro Anacleto, Liam Yasin, Marina Alves, Miguel Madeira, Oleksandr Bondarchuk, Saibal Mitra, David Fuster Signes, Jorge M. Garcia, Fernando Briones, Rolf Waechter, Oliver Kiowski, Dimitrios Hariskos, Diego Colombara, Sascha Sadewasser
Published in: physica status solidi (RRL) – Rapid Research Letters, 2019, Page(s) 1900145, ISSN 1862-6254
DOI: 10.1002/pssr.201900145

Impact of compositional grading and overall Cu deficiency on the near-infrared response in Cu(In, Ga)Se2 solar cells

Author(s): Enrico Avancini, Romain Carron, Benjamin Bissig, Patrick Reinhard, Roberto Menozzi, Giovanna Sozzi, Simone Di Napoli, Thomas Feurer, Shiro Nishiwaki, Stephan Buecheler, Ayodhya N. Tiwari
Published in: Progress in Photovoltaics: Research and Applications, Issue 25/3, 2017, Page(s) 233-241, ISSN 1062-7995
DOI: 10.1002/pip.2850

Impact of front-side point contact/passivation geometry on thin-film solar cell performance

Author(s): Giovanna Sozzi, Simone Di Napoli, Roberto Menozzi, Benjamin Bissig, Stephan Buecheler, Ayodhya N. Tiwari
Published in: Solar Energy Materials and Solar Cells, Issue 165, 2017, Page(s) 94-102, ISSN 0927-0248
DOI: 10.1016/j.solmat.2017.02.031

The hunt for the third acceptor in CuInSe 2 and Cu(In,Ga)Se 2 absorber layers

Author(s): Finn Babbe, Hossam Elanzeery, Max H Wolter, Korra Santhosh, Susanne Siebentritt
Published in: Journal of Physics: Condensed Matter, Issue 31/42, 2019, Page(s) 425702, ISSN 0953-8984
DOI: 10.1088/1361-648x/ab2e24

Direct evidence for grain boundary passivation in Cu(In,Ga)Se2 solar cells through alkali-fluoride post-deposition treatments

Author(s): Nicoleta Nicoara, Roby Manaligod, Philip Jackson, Dimitrios Hariskos, Wolfram Witte, Giovanna Sozzi, Roberto Menozzi, Sascha Sadewasser
Published in: Nature Communications, Issue 10/1, 2019, ISSN 2041-1723
DOI: 10.1038/s41467-019-11996-y

Electronic defects in Cu ( In , Ga ) S e 2

Author(s): Conrad Spindler, Finn Babbe, Max Hilaire Wolter, Florian Ehré, Korra Santhosh, Pit Hilgert, Florian Werner, Susanne Siebentritt
Published in: Physical Review Materials, Issue 3/9, 2019, Page(s) 090302, ISSN 2475-9953
DOI: 10.1103/physrevmaterials.3.090302

First-Principles Modeling of Point Defects and Complexes in Thin-Film Solar-Cell Absorber CuInSe 2

Author(s): Maria Malitckaya, Hannu-Pekka Komsa, Ville Havu, Martti J. Puska
Published in: Advanced Electronic Materials, Issue 3/6, 2017, Page(s) 1600353, ISSN 2199-160X
DOI: 10.1002/aelm.201600353

Heavy Alkali Treatment of Cu(In,Ga)Se 2 Solar Cells: Surface versus Bulk Effects

Author(s): Susanne Siebentritt, Enrico Avancini, Marcus Bär, Jakob Bombsch, Emilie Bourgeois, Stephan Buecheler, Romain Carron, Celia Castro, Sebastien Duguay, Roberto Félix, Evelyn Handick, Dimitrios Hariskos, Ville Havu, Philip Jackson, Hannu‐Pekka Komsa, Thomas Kunze, Maria Malitckaya, Roberto Menozzi, Milos Nesladek, Nicoleta Nicoara, Martti Puska, Mohit Raghuwanshi, Philippe Pareige, Sascha Sadewass
Published in: Advanced Energy Materials, 2020, Page(s) 1903752, ISSN 1614-6832
DOI: 10.1002/aenm.201903752

Interface Formation between CdS and Alkali Postdeposition-Treated Cu(In,Ga)Se 2 Thin-Film Solar Cell Absorbers—Key To Understanding the Efficiency Gain

Author(s): Penghui Yang, Regan G. Wilks, Wanli Yang, Marcus Bär
Published in: ACS Applied Materials & Interfaces, Issue 12/5, 2020, Page(s) 6688-6698, ISSN 1944-8244
DOI: 10.1021/acsami.9b20327

Correcting for interference effects in the photoluminescence of Cu(In,Ga)Se2 thin films

Author(s): Max Hilaire Wolter, Benjamin Bissig, Patrick Reinhard, Stephan Buecheler, Philip Jackson, and Susanne Siebentritt
Published in: Phys. Status Solidi C, Issue 14/6, 2017, Page(s) 1600189, ISSN 1610-1642
DOI: 10.1002/pssc.201600189

Effect of Alkali Metal Atom Doping on the CuInSe 2 -Based Solar Cell Absorber

Author(s): M. Malitckaya, H.-P. Komsa, V. Havu, M. J. Puska
Published in: The Journal of Physical Chemistry C, Issue 121/29, 2017, Page(s) 15516-15528, ISSN 1932-7447
DOI: 10.1021/acs.jpcc.7b03083

Modification of electronic grain boundary properties of Cu(In, Ga)Se<inf>2</inf> by alkali-fluoride post deposition treatments

Author(s): Nicoleta Nicoara, Roby Manaligod, Philip Jackson, Dimitrios Hariskos, Wolfram Witte, Sascha Sadewasser
Published in: 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC & 34th EU PVSEC), 2018, Page(s) 1638-1640
DOI: 10.1109/PVSC.2018.8547982

Influence of conduction band offsets at window/buffer and buffer/absorber interfaces on the roll-over of J-V curves of CIGS solar cells

Author(s): G. Sozzi, S. Di Napoli, R. Menozzi, F. Werner, S. Siebentritt, P. Jackson, W. Witte
Published in: 2017 IEEE 44th Photovoltaic Specialists Conference (PVSC), Washington D.C., USA, 2017, 2018, Page(s) 2205-2208

NaF/KF post-deposition treatments and their influence on the structure of Cu(In, Ga)Se<inf>2</inf> absorber surfaces

Author(s): Evelyn Handick, Patrick Reinhard, Regan G. Wilks, Fabian Pianezzi, Roberto Felix, Mihaela Gorgoi, Thomas Kunze, Stephan Buecheler, Ayodhya N. Tiwari, Marcus Bar
Published in: 2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC), 2016, Page(s) 0017-0021
DOI: 10.1109/PVSC.2016.7749400

A numerical study of the use of C-V characteristics to extract the doping density of CIGS absorbers

Author(s): G. Sozzi, M. Lazzarini, R. Menozzi, R. Carron, E. Avancini, B. Bissig, S. Buecheler, A. N. Tiwari
Published in: 2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC), 2016, Page(s) 2283-2288
DOI: 10.1109/PVSC.2016.7750043

Analysis of Ga grading in CIGS absorbers with different Cu content

Author(s): G. Sozzi, S. Di Napoli, R. Menozzi, R. Carron, E. Avancini, B. Bissig, S. Buecheler, A. N. Tiwari
Published in: 2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC), 2016, Page(s) 2279-2282
DOI: 10.1109/PVSC.2016.7750042

First-Principles Modeling of Alkali Metal Post Deposition Treatment Effects in CIGS Solar Cells

Author(s): Maria Fedina, Hannu-Pekka Komsa, Ville Havu, Martti J. Puska
Published in: 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC), 2017, Page(s) 2070-2072
DOI: 10.1109/pvsc.2017.8366204

Assessing the impact of rear point-contact/passivation on CIGS cells with different absorber thickness and grading

Author(s): Giovanna Sozzi, Simone Di Napoli, Martina Carrisi, Roberto Menozzi
Published in: 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC & 34th EU PVSEC), 2018, Page(s) 3044-3047
DOI: 10.1109/pvsc.2018.8548312

Interpretation of admittance signatures in Cu(In,Ga)Se2 solar cells

Author(s): Giovanna Sozzi, Simone Di Napoli, Roberto Menozzi, Thomas P. Weiss, Stephan Buecheler, Ayodya N. Tiwari
Published in: 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC & 34th EU PVSEC), 2018, Page(s) 2515-2519
DOI: 10.1109/pvsc.2018.8547296

Numerical simulation of CIGS solar cells with Zn(O,S) or (Cd,Zn)S buffers and (Zn,Mg)O as high-resistive layer

Author(s): Giovanna Sozzi, Simone Di Napoli, Matteo Enna, Roberto Menozzi, Dimitrios Hariskos, Wolfram Witte
Published in: 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC), 2019, Page(s) 2155-2158
DOI: 10.1109/pvsc40753.2019.8980882