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Boron-doped zinc oxide (BZO) deposited by metal organic chemical vapor deposition (MOCVD) method is used as front contact in amorphous silicon thin film solar cells. Asahi-U type SnO2:F is used as the reference front contact for comparison. When the a-Si:H intrinsic layer thickness is changing changed, the performance of a-Si:H solar cells shows different evolution trends. These different results can be understood from the shadowing effect during the growth of intrinsic silicon material, which is caused by the as-grown pyramid texture in the surface of BZO substrate. In order to reduce this negative effect on the performance of solar cells, the deposition temperature of the a-Si:H intrinsic layer is optimized, to thereby improving improve the open circuit voltage and fill factor. The conversion efficiency of a-Si:H solar cells can reach up to 7.34%, with the thickness of absorber layer being only around 200 nm. and only Al back reflector is being used.
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Keywords:
- zinc oxide /
- cracks /
- leakage current shunts /
- amorphous silicon top cell
[1] Zhang X D, Zheng X X, Xu S Z, Lin Q, Wei C C, Sun J, Geng X H, Zhao Y 2011 Chin. Phys. B 20 108801
[2] Wang L, Zhang X D, Yang X, Wei C C, Zhang D K, Wang G C, Sun J, Zhao Y 2013 Acta Phys. Sin. 62 058801 (in Chinese) [王利, 张晓丹, 杨旭, 魏长春, 张德坤, 王广才, 孙建, 赵颖 2013 62 058801]
[3] Ni J, Zheng J J, Cao Y, Wang X B, Li C, Chen X L, Geng X H, Zhao Y 2011 Chin. Phys. B 20 087309
[4] Boccard M, Cuony P, Battaglia C, Despeisse M, Ballif C 2010 Phys. Status Solidi RRL 4 326
[5] Sai H, Jia H, Kondo M 2010 J. Appl. Phys. 108 044505
[6] Selvan J A, Delahoy A E, Guo S, Li Y M 2006 Sol. Energy Mater. Sol. Cells 90 3371
[7] Wanka H N, Schubert M B, Lotter E 1996 Sol. Energy Mater. Sol. Cells 41 519
[8] Chen X L, Xue J M, Zhang D K, Sun J, Ren H Z, Zhao Y, Geng X H 2007 Acta Phys. Sin. 56 1563 (in Chinese) [陈新亮, 薛俊明, 张德坤, 孙建, 任慧志, 赵颖, 耿新华 2007 56 1563]
[9] Faÿ S, Kroll U, Bucher C, Vallat-Sauvain E, Shah A 2005 Sol. Energy Mater. Sol. Cells 86 385
[10] Dominé D, Buehlmann P, Bailat J, Billket A, Feltrin A, Ballif C 2008 Phys. Status Solidi RRL 2 163
[11] Böhmer E, Siebke F, Wagner H 1997 Fresenius J. Anal. Chem. 358 210
[12] Grunze M, Hirschwald W, Hofmann D 1981 J. Cryst. Growth 52 241
[13] Burstein E 1954 Phys. Rev. 93 632
[14] Li H, Franken R H, Rath J K, Schropp R E I 2009 Sol. Energy Mater. Sol. Cells 93 338
[15] Boccard M, Söderström T, Cuony P, Battaglia C, Hänni, Nicolay S, Ding L, Benkhaira M, Bugnon G, Billet A, Ballif C 2012 IEEE J. Photovoltaics DOI:10.1109/JPHOTOV.2011.2180514
[16] Bailat J, Dominé D, Schlchter R, Steinhauser J, Faÿ S, Freitas F, Bcher C, Feitknecht L, Niquille X, Tscharner T, Shah A, Ballif C 2006 Proceedings of the 4th WCPEC Conference Hawai, USA, May 7–12, 2006 p1533
[17] Faÿ S, Kroll U, Bucher C, Vallat-Sauvain E, Shah A 2005 Sol. Energy Mater. Sol. Cells 86 385
[18] Platz R, Hof C, Fischer D, Meier J, Shah A 1998 Sol. Energy Mater. Sol. Cells 53 1
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[1] Zhang X D, Zheng X X, Xu S Z, Lin Q, Wei C C, Sun J, Geng X H, Zhao Y 2011 Chin. Phys. B 20 108801
[2] Wang L, Zhang X D, Yang X, Wei C C, Zhang D K, Wang G C, Sun J, Zhao Y 2013 Acta Phys. Sin. 62 058801 (in Chinese) [王利, 张晓丹, 杨旭, 魏长春, 张德坤, 王广才, 孙建, 赵颖 2013 62 058801]
[3] Ni J, Zheng J J, Cao Y, Wang X B, Li C, Chen X L, Geng X H, Zhao Y 2011 Chin. Phys. B 20 087309
[4] Boccard M, Cuony P, Battaglia C, Despeisse M, Ballif C 2010 Phys. Status Solidi RRL 4 326
[5] Sai H, Jia H, Kondo M 2010 J. Appl. Phys. 108 044505
[6] Selvan J A, Delahoy A E, Guo S, Li Y M 2006 Sol. Energy Mater. Sol. Cells 90 3371
[7] Wanka H N, Schubert M B, Lotter E 1996 Sol. Energy Mater. Sol. Cells 41 519
[8] Chen X L, Xue J M, Zhang D K, Sun J, Ren H Z, Zhao Y, Geng X H 2007 Acta Phys. Sin. 56 1563 (in Chinese) [陈新亮, 薛俊明, 张德坤, 孙建, 任慧志, 赵颖, 耿新华 2007 56 1563]
[9] Faÿ S, Kroll U, Bucher C, Vallat-Sauvain E, Shah A 2005 Sol. Energy Mater. Sol. Cells 86 385
[10] Dominé D, Buehlmann P, Bailat J, Billket A, Feltrin A, Ballif C 2008 Phys. Status Solidi RRL 2 163
[11] Böhmer E, Siebke F, Wagner H 1997 Fresenius J. Anal. Chem. 358 210
[12] Grunze M, Hirschwald W, Hofmann D 1981 J. Cryst. Growth 52 241
[13] Burstein E 1954 Phys. Rev. 93 632
[14] Li H, Franken R H, Rath J K, Schropp R E I 2009 Sol. Energy Mater. Sol. Cells 93 338
[15] Boccard M, Söderström T, Cuony P, Battaglia C, Hänni, Nicolay S, Ding L, Benkhaira M, Bugnon G, Billet A, Ballif C 2012 IEEE J. Photovoltaics DOI:10.1109/JPHOTOV.2011.2180514
[16] Bailat J, Dominé D, Schlchter R, Steinhauser J, Faÿ S, Freitas F, Bcher C, Feitknecht L, Niquille X, Tscharner T, Shah A, Ballif C 2006 Proceedings of the 4th WCPEC Conference Hawai, USA, May 7–12, 2006 p1533
[17] Faÿ S, Kroll U, Bucher C, Vallat-Sauvain E, Shah A 2005 Sol. Energy Mater. Sol. Cells 86 385
[18] Platz R, Hof C, Fischer D, Meier J, Shah A 1998 Sol. Energy Mater. Sol. Cells 53 1
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