Fabrication of bendable and narrow bandgap Cu(In,Ga)(S,Se)2 for tandem photovoltaics
Abstract Cu(In,Ga)(S,Se)2 absorbers with a bandgap in the near-infrared region are ideal candidates for a bottom cell in multi-junction solar cell architectures. In flexible and lightweight form factors, such devices could help power many applications through integrated solar cells. Here, we show th...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Communications Materials |
| Online Access: | https://doi.org/10.1038/s43246-024-00706-x |
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| author | Sarallah Hamtaei Alice Debot Romain Scaffidi Guy Brammertz Estelle Cariou Sean M. Garner Aranzazu Aguirre Jef Poortmans Phillip J. Dale Bart Vermang |
| author_facet | Sarallah Hamtaei Alice Debot Romain Scaffidi Guy Brammertz Estelle Cariou Sean M. Garner Aranzazu Aguirre Jef Poortmans Phillip J. Dale Bart Vermang |
| author_sort | Sarallah Hamtaei |
| collection | DOAJ |
| description | Abstract Cu(In,Ga)(S,Se)2 absorbers with a bandgap in the near-infrared region are ideal candidates for a bottom cell in multi-junction solar cell architectures. In flexible and lightweight form factors, such devices could help power many applications through integrated solar cells. Here, we show the use of a two-step method to synthesize Cu(In,Ga)(S,Se)2, with a bandgap between 1.00 and 1.13 eV, on bendable ultra-thin glass, with minority carrier lifetimes approaching 100 ns, in a homogenous and repeatable fashion. We also report on conventional and alternative device fabrication methods with very low waste and toxicity footprints. Champion solar cells are fabricated based on absorbers with a graded bandgap between 1.05 and 1.1 eV, and an open circuit voltage approaching 600 mV. Our results show a way for scalable fabrication of all thin-film, flexible tandem solar cells, by means of industrially relevant processing steps in a low cost and sustainable fashion. |
| format | Article |
| id | doaj-art-9e1a5c8337df44819e08c6f306a36f14 |
| institution | Kabale University |
| issn | 2662-4443 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Materials |
| spelling | doaj-art-9e1a5c8337df44819e08c6f306a36f142025-01-12T12:32:50ZengNature PortfolioCommunications Materials2662-44432025-01-01611810.1038/s43246-024-00706-xFabrication of bendable and narrow bandgap Cu(In,Ga)(S,Se)2 for tandem photovoltaicsSarallah Hamtaei0Alice Debot1Romain Scaffidi2Guy Brammertz3Estelle Cariou4Sean M. Garner5Aranzazu Aguirre6Jef Poortmans7Phillip J. Dale8Bart Vermang9imec, imo-imomecDepartment of Physics and Materials Science, University of Luxembourgimec, imo-imomecimec, imo-imomecimec, imo-imomecCorning Research and Development Corporation, One River Front Plaza, Corningimec, imo-imomecimec, imo-imomecDepartment of Physics and Materials Science, University of Luxembourgimec, imo-imomecAbstract Cu(In,Ga)(S,Se)2 absorbers with a bandgap in the near-infrared region are ideal candidates for a bottom cell in multi-junction solar cell architectures. In flexible and lightweight form factors, such devices could help power many applications through integrated solar cells. Here, we show the use of a two-step method to synthesize Cu(In,Ga)(S,Se)2, with a bandgap between 1.00 and 1.13 eV, on bendable ultra-thin glass, with minority carrier lifetimes approaching 100 ns, in a homogenous and repeatable fashion. We also report on conventional and alternative device fabrication methods with very low waste and toxicity footprints. Champion solar cells are fabricated based on absorbers with a graded bandgap between 1.05 and 1.1 eV, and an open circuit voltage approaching 600 mV. Our results show a way for scalable fabrication of all thin-film, flexible tandem solar cells, by means of industrially relevant processing steps in a low cost and sustainable fashion.https://doi.org/10.1038/s43246-024-00706-x |
| spellingShingle | Sarallah Hamtaei Alice Debot Romain Scaffidi Guy Brammertz Estelle Cariou Sean M. Garner Aranzazu Aguirre Jef Poortmans Phillip J. Dale Bart Vermang Fabrication of bendable and narrow bandgap Cu(In,Ga)(S,Se)2 for tandem photovoltaics Communications Materials |
| title | Fabrication of bendable and narrow bandgap Cu(In,Ga)(S,Se)2 for tandem photovoltaics |
| title_full | Fabrication of bendable and narrow bandgap Cu(In,Ga)(S,Se)2 for tandem photovoltaics |
| title_fullStr | Fabrication of bendable and narrow bandgap Cu(In,Ga)(S,Se)2 for tandem photovoltaics |
| title_full_unstemmed | Fabrication of bendable and narrow bandgap Cu(In,Ga)(S,Se)2 for tandem photovoltaics |
| title_short | Fabrication of bendable and narrow bandgap Cu(In,Ga)(S,Se)2 for tandem photovoltaics |
| title_sort | fabrication of bendable and narrow bandgap cu in ga s se 2 for tandem photovoltaics |
| url | https://doi.org/10.1038/s43246-024-00706-x |
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