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http://hdl.handle.net/1942/33169
Title: | The path towards efficient wide band gap thin-film kesterite solar cells with transparent back contact for viable tandem application | Authors: | Khelifi, Samira BRAMMERTZ, Guy Choubrac, Leo Batuk, Maria Yang, Sheng MEURIS, Marc Barreau, Nicolas Hadermann, Joke Vrielinck, Henk Poelman, Dirk Neyts, Kristiaan VERMANG, Bart Lauwaert, Johan |
Issue Date: | 2021 | Publisher: | ELSEVIER | Source: | SOLAR ENERGY MATERIALS AND SOLAR CELLS, 219 (Art N° 110824) | Abstract: | Wide band gap thin-film kesterite solar cell based on non-toxic and earth-abundant materials might be a suitable candidate as a top cell for tandem configuration in combination with crystalline silicon as a bottom solar cell. For this purpose and based on parameters we have extracted from electrical and optical characterization techniques of Cu2ZnGeSe4 absorbers and solar cells, a model has been developed to describe the kesterite top cell efficiency limitations and to investigate the different possible configurations with transparent back contact for fourterminal tandem solar cell application. Furthermore, we have studied the tandem solar cell performance in view of the band gap and the transparency of the kesterite top cell and back contact engineering. Our detailed analysis shows that a kesterite top cell with efficiency > 14%, a band gap in the range of 1.5-1.7 eV and transparency above 80% at the sub-band gaps photons energies are required to achieve a tandem cell with higher efficiency than with a single silicon solar cell. | Notes: | Khelifi, S (corresponding author), Univ Ghent, Dept Solid State Sci, Krijgslaan S1, B-9000 Ghent, Belgium. samira.khelifi@ugent.be |
Other: | Khelifi, S (corresponding author), Univ Ghent, Dept Solid State Sci, Krijgslaan S1, B-9000 Ghent, Belgium. samira.khelifi@ugent.be | Keywords: | Kesterite thin film solar cell;Cu2ZnGeSe4;Secondary/ternary phases;Wide band gap absorbers;Efficiency limitations;Four-terminal tandem solar cell;c-Si solar Cell | Document URI: | http://hdl.handle.net/1942/33169 | ISSN: | 0927-0248 | e-ISSN: | 1879-3398 | DOI: | 10.1016/j.solmat.2020.110824 | ISI #: | WOS:000591683500002 | Rights: | 2020 Elsevier B.V. All rights reserved. | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2021 |
Appears in Collections: | Research publications |
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1-s2.0-S0927024820304220-main.pdf Restricted Access | Published version | 11.21 MB | Adobe PDF | View/Open Request a copy |
Khelifi.pdf | Peer-reviewed author version | 3.11 MB | Adobe PDF | View/Open |
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