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In this paper, the laws of light-induced degradation (LID) in silicon wafers and solar cells are investigated by using xenon lamp as light source. There are tested 15 types of the silicon wafers contain the including primary wafer, chemical thinned wafer, thermal oxidation passivation wafer, passivation SiNx:H wafer deposited by plasma enhanced chemical vapor deposition, iodine passivation wafers of three different types of silicons: B-doped CZ-Silicon, B-doped Multicrystalline (MC) silicon, and B-doped Upgraded-Metallurgical-grade (UMG) silicon. There are tested 3 types of silicon solar cells: CZ solar cell, MC solar cell, and UMG solar cell. The light intensity is 1000 W/m2 in test. By using WT-2000 tester and solar cells I-V tester, the variations of minority carrier lifetimes of silicon wafers and the I-V characteristic parameters of solar cells with time of light exposure are tested and recorded. Finally the law of LID is found. Under our light condition (light source is a xenon lamp with a light intensity of 1000 W/m2), all kinds of silicon wafers and solar cells are degraded rapidly within the first 60 min, then slowly until the 180 min, finally the rate tends to 0. The LID becomes very slight after 180 min lighting.
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Keywords:
- silicon /
- light-induced degradation /
- minority carrier lifetime /
- solar cells
[1] Fischer H, Pschunder W 1973 Proceedings of 10th IEEE Photovoltaic Specialists Conference Palo Alto, California, November 13–15, 1973 p404
[2] Kimerling L C, Asom M T, Benton J T, Drevinsky P J, Caefer C E 1989 Mater. Sci. Forum. 141 38
[3] Schmidt J, Aberle A G, Hezel R 1997 Proceedings of the 26th IEEE Photovoltaic Specialists Conference Anaheim, California, September 29–October 3, 1997 p13
[4] Schmidt J, Bothe K 2004 Phys. Rev. B 69 024107
[5] Reina S, Glunz S W 2005 J. Appl. Phys. 98 113711
[6] Schmidt J 2005 Prog. Photovolt: Res. Appl. 13 325
[7] Jiang L L, Lu Z L, Zhang F M, Lu X 2013 Acta Phys. Sin. 62 110101 (in Chinese) [姜丽丽, 路忠林, 张凤鸣, 鲁雄 2013 62 110101]
[8] Osinniy V, Bomholt P, Nylandsted Larsen A, Enebakk E, Soiland A K, Tronstad R, Safir Y 2011 Sol. Energy Mater. Sol. Cells 95 564
[9] Savin H, Yli-Koski M, Haarahitunen A 2009 Appl. Phys. Lett. 95 152111
[10] Schmidt J, Kerr M 2001 Sol. Energy Mater. Sol. Cells 65 585
[11] Rohatgi A, Yelundur V, Jeong J 2000 Proceedings of 16th Euro Photovoltaic Solar Energy Conference Glasgow, May1–5, 2000 p1120
[12] Zhang X, Liu B W, Xia Y, Li C B, Liu J, Shen Z N 2012 Acta Phys. Sin. 61 187303 (in Chinese) [张祥, 刘邦武, 夏洋, 李超波, 刘杰, 沈泽南 2012 61 187303]
[13] Schmidt J, Bothe K 2004 Phys. Rev. B 69 024107
[14] Herguth A, Schubert G, Kaes M, Hahn G 2008 Prog. Photovolt: Res. Appl. 16 135
[15] Stephens A W, Green M A 1997 Sol. Energy Mater. Sol. Cells 45 255
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[1] Fischer H, Pschunder W 1973 Proceedings of 10th IEEE Photovoltaic Specialists Conference Palo Alto, California, November 13–15, 1973 p404
[2] Kimerling L C, Asom M T, Benton J T, Drevinsky P J, Caefer C E 1989 Mater. Sci. Forum. 141 38
[3] Schmidt J, Aberle A G, Hezel R 1997 Proceedings of the 26th IEEE Photovoltaic Specialists Conference Anaheim, California, September 29–October 3, 1997 p13
[4] Schmidt J, Bothe K 2004 Phys. Rev. B 69 024107
[5] Reina S, Glunz S W 2005 J. Appl. Phys. 98 113711
[6] Schmidt J 2005 Prog. Photovolt: Res. Appl. 13 325
[7] Jiang L L, Lu Z L, Zhang F M, Lu X 2013 Acta Phys. Sin. 62 110101 (in Chinese) [姜丽丽, 路忠林, 张凤鸣, 鲁雄 2013 62 110101]
[8] Osinniy V, Bomholt P, Nylandsted Larsen A, Enebakk E, Soiland A K, Tronstad R, Safir Y 2011 Sol. Energy Mater. Sol. Cells 95 564
[9] Savin H, Yli-Koski M, Haarahitunen A 2009 Appl. Phys. Lett. 95 152111
[10] Schmidt J, Kerr M 2001 Sol. Energy Mater. Sol. Cells 65 585
[11] Rohatgi A, Yelundur V, Jeong J 2000 Proceedings of 16th Euro Photovoltaic Solar Energy Conference Glasgow, May1–5, 2000 p1120
[12] Zhang X, Liu B W, Xia Y, Li C B, Liu J, Shen Z N 2012 Acta Phys. Sin. 61 187303 (in Chinese) [张祥, 刘邦武, 夏洋, 李超波, 刘杰, 沈泽南 2012 61 187303]
[13] Schmidt J, Bothe K 2004 Phys. Rev. B 69 024107
[14] Herguth A, Schubert G, Kaes M, Hahn G 2008 Prog. Photovolt: Res. Appl. 16 135
[15] Stephens A W, Green M A 1997 Sol. Energy Mater. Sol. Cells 45 255
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