Improving Efficiency of Evaporated Cu2ZnSnS4 Thin Film Solar Cells by a Thin Ag Intermediate Layer between Absorber and Back Contact
A 20 nm Ag coating on Mo back contact was adopted to improve the back contact of evaporated Cu2ZnSnS4 (CZTS) solar cells. The Ag layer helped reduce the thickness of MoS2 which improves fill factor (FF) significantly; additionally, it reduced secondary phases ZnS and SnS2−x, which may help carrier t...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2015/170507 |
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| author | Hongtao Cui Chang-Yeh Lee Wei Li Xiaolei Liu Xiaoming Wen Xiaojing Hao |
| author_facet | Hongtao Cui Chang-Yeh Lee Wei Li Xiaolei Liu Xiaoming Wen Xiaojing Hao |
| author_sort | Hongtao Cui |
| collection | DOAJ |
| description | A 20 nm Ag coating on Mo back contact was adopted to improve the back contact of evaporated Cu2ZnSnS4 (CZTS) solar cells. The Ag layer helped reduce the thickness of MoS2 which improves fill factor (FF) significantly; additionally, it reduced secondary phases ZnS and SnS2−x, which may help carrier transport; it was also involved in the doping of the absorber layer, which compensated the intrinsic p-type doping and therefore drags down the doping level. The doping involvement may enlarge the depletion region and improve lifetime of the absorber, which led to enhancing open circuit voltage (VOC), short circuit current density (JSC), and efficiency significantly. However, it degrades the crystallinity of the material slightly. |
| format | Article |
| id | doaj-art-2500a41d47824c56b2384b88f113c609 |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-2500a41d47824c56b2384b88f113c6092025-02-03T06:42:17ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2015-01-01201510.1155/2015/170507170507Improving Efficiency of Evaporated Cu2ZnSnS4 Thin Film Solar Cells by a Thin Ag Intermediate Layer between Absorber and Back ContactHongtao Cui0Chang-Yeh Lee1Wei Li2Xiaolei Liu3Xiaoming Wen4Xiaojing Hao5School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW 2052, AustraliaSchool of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW 2052, AustraliaSchool of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW 2052, AustraliaSchool of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW 2052, AustraliaSchool of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW 2052, AustraliaSchool of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW 2052, AustraliaA 20 nm Ag coating on Mo back contact was adopted to improve the back contact of evaporated Cu2ZnSnS4 (CZTS) solar cells. The Ag layer helped reduce the thickness of MoS2 which improves fill factor (FF) significantly; additionally, it reduced secondary phases ZnS and SnS2−x, which may help carrier transport; it was also involved in the doping of the absorber layer, which compensated the intrinsic p-type doping and therefore drags down the doping level. The doping involvement may enlarge the depletion region and improve lifetime of the absorber, which led to enhancing open circuit voltage (VOC), short circuit current density (JSC), and efficiency significantly. However, it degrades the crystallinity of the material slightly.http://dx.doi.org/10.1155/2015/170507 |
| spellingShingle | Hongtao Cui Chang-Yeh Lee Wei Li Xiaolei Liu Xiaoming Wen Xiaojing Hao Improving Efficiency of Evaporated Cu2ZnSnS4 Thin Film Solar Cells by a Thin Ag Intermediate Layer between Absorber and Back Contact International Journal of Photoenergy |
| title | Improving Efficiency of Evaporated Cu2ZnSnS4 Thin Film Solar Cells by a Thin Ag Intermediate Layer between Absorber and Back Contact |
| title_full | Improving Efficiency of Evaporated Cu2ZnSnS4 Thin Film Solar Cells by a Thin Ag Intermediate Layer between Absorber and Back Contact |
| title_fullStr | Improving Efficiency of Evaporated Cu2ZnSnS4 Thin Film Solar Cells by a Thin Ag Intermediate Layer between Absorber and Back Contact |
| title_full_unstemmed | Improving Efficiency of Evaporated Cu2ZnSnS4 Thin Film Solar Cells by a Thin Ag Intermediate Layer between Absorber and Back Contact |
| title_short | Improving Efficiency of Evaporated Cu2ZnSnS4 Thin Film Solar Cells by a Thin Ag Intermediate Layer between Absorber and Back Contact |
| title_sort | improving efficiency of evaporated cu2znsns4 thin film solar cells by a thin ag intermediate layer between absorber and back contact |
| url | http://dx.doi.org/10.1155/2015/170507 |
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