Optimized analysis and experimental study for two-layer contact of crystalline silicon solar cells

Li Tao; Zhou Chun-Lan; Liu Zhen-Gang; Zhao Lei; Li Hai-Ling; Diao Hong-Wei; Wang Wen-Jing

doi:10.7498/aps.61.038802

Abstract

Compared with single-layer contact, optimized two-layer contact of front side could diminish power losses distinctly and improve the electrical performance of crystalline silicon solar cell. In this paper, the optimized analysis and experimental study for two-layer contact of crystalline silicon solar cell are carried out. The model of two-layer contact is established by abstracting the cross-section of two-layer contact into semi-elliptical shape closer to the realistic situation according to the SEM observation . The electrical losses and the optical losses of two-layer contact are analyzed in theory. In combination with experimental screen-printed contact thickened by light-induced electroplating solar cell, the relationship between the optimum thickening contact thickness by light-induced electroplating and the screen-printed contact width is achieved in theory and experiment. The corresponding theory and experimental results are in good agreement with each other. Due to involving no concrete technology of contact preparation, the theoretical model of two-layer contact is generally appticable for many types of two-layer contact structurs in consequence.

Keywords:

Authors and contacts

1.
The Key Laboratory of Solar Thermal Energy and Photovoltaic System, Institute of Electrical Engineering, CAS, Beijing 100190, China
Funds: Project supported by the Main Direction of Knowledge Innovation Program of the Chinese Academy of Science (Grant No. KGCX2-YW-382), and the National High Technology Research and Development Program of China (Grant No. 2007AA05Z437).

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Cited By

[1]	Gu C, Qu S B, Pei Z B, Xu Z, Liu J, Gu W 2011 Chin. Phys. B 20 017801
[2]	Hua Z 2005 Chin. Phys. B 14 2019
[3]	Glunz S, Mette A, Aleman M, Richter P, Filipovic A, Willeke G 2006 Proceedings of the 21st European Photovoltaic Solar Energy Conference Dresden, Germany, 2006 pp8–11
[4]	Mette A, Schetter C, Wissen D, Lust S, Glunz S, Willeke G 2006 Proceedings of the 4th IEEE World Conference on Photovoltaic Energy Conversion Waikoloa, Hawaii, 2006 pp1056–1059
[5]	Pysch D, Mette A, Filipovic A, Glunz S 2009 Prog. Photovolt: Res. Appl. 17 101
[6]	Hyung Lee J, Hyun Lee Y, Yong Ahn J, Jeong J 2010 Sol. Energy Mater. Sol. Cells 95 22
[7]	Erath D, Filipovic A, Retzlaff M, Goetz A K, Clement F, Biro D, Preu R 2010 Sol. Energy Mater. Sol. Cells 94 57
[8]	Lennon A, Utama R, Lenio M, Ho-Baillie A, Kuepper N,Wenham S 2008 Sol. Energy Mater. Sol. Cells 92 1410
[9]	Curtis C, van Hest M, Miedaner A, Kaydanova T, Smith L, Ginley D 2007 Proceedings of the 22nd European Photovoltaic Solar Energy Conference Milan, Italy, pp1039–1394
[10]	Shaheen S, Radspinner R, Peyghambarian N, Jabbour G 2009 Appl. Phys. Lett. 79 2996
[11]	Hörteis M, Mette A, Richter P, Fidorra F, Glunz S 2007 Proceedings of the 22nd European Photovoltaic Solar Energy Conference Milan, Italy, pp1039–1042
[12]	Mette A, Richter P, Hörteis M, Glunz S 2007 Prog. Photovolt: Res. Appl. 15 621
[13]	Hörteis M, Bartsch J, Binder S, Filipovic A, Merkel J, Radtke V, Glunz S 2010 Prog. Photovolt: Res. Appl. 18 240
[14]	Horteis M, Glunz S 2008 Prog. Photovolt: Res. Appl. 16 555
[15]	Hyung Lee J, Hyun Lee Y, Yong Ahn J, Jeong J W 2011 Sol. Energy Mater. Sol. Cells 95 22
[16]	Guo H, Zhang Y M, Zhang Y M 2006 Chin. Phys. 15 2142
[17]	Wand Y Y, Guo H, Wang Y H, Zhang Y M, Qiao D Y, Zhang Y M 2009 Chin. Phys. B 18 4470
[18]	Zhang L Z, Zhang Y M, Zhang Y M, Han C, Ma Y J 2009 Chin. Phys. B 18 3490
[19]	Guo H, Zhang Y M, Qiao D Y, Sun L, Zhang Y M 2007 Chin. Phys. 16 1753
[20]	Wang S G, Zhang Y, Zhang Y M, Zhang Y M 2010 Chin. Phys. B 19 017204
[21]	Huang J Y, Fan G H, Zhang S W, Niu Q L, Li S T, Cao J X, Su J, Zhang Y 2010 Chin. Phys. B 19 047205
[22]	Liu G, Liu M, Wang H, Shang L W, Ji Z Y, Liu X H, Liu J 2009 Chin. Phys. B 18 3530
[23]	Li C W, Zhu Y X, Shen G D, Zhang Y H, Qin Y, Gao W, Jiang W J, Zhou D S 2010 Chin. Phys. B 19 097305
[24]	Blakers A 2009 J. Appl. Phys. 71 5237
[25]	Woehl R, Hörteis M, Glunz S W 2008 Adv. OptoElectron. 1-7
[26]	Nguyen A, Fioramonti A, Morrissey D, Efstathiadis H, Zhouying Z, Haldar P 2009 34th IEEE Photovoltaic Specialists Conference Philadelphia PA, 2009 pp312–315
[27]	Meier D, Schroder D 2005 IEEE Trans. Electron Dev. 31 647
[28]	Hilali M, Rohatgi A, To B 2004 14th Workshop on Crystalline Silicon Solar Cells and Modules Winter Park, Colorado, pp1–11
[29]	Wang N N, Yu J S, Zang Y, Jiang Y D 2010 Chin. Phys. B 19 038602
[30]	Zhou Y H, Yang Z F, Wu W C, Xia H J, Wen S P, Tian W J 2007 Chin. Phys. 16 2136
[31]	Liu X D, Xu Z, Zhang F J, Zhao S L, Zhang T H, Gong W, Song J L, Kong C, Yan G, Xu X R 2010 Chin. Phys. B 19 118601

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Vol. 61, Issue 3 - 2012-02-05

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