결정질 실리콘 태양전지용 실리콘 기판의 표면 미세구조에 따른 곡강도 특성

이준성; 권순우; 박하영; 김영도; 김형준; 임희진; 윤세왕; 김동환; Joon Sung Lee; Soonwoo Kwon; Hayoung Park; Young Do Kim; Hyeong-Jun Kim; Heejin Lim; Sewang Yoon; Donghwan Kim

Korean Journal of Materials Research, Vol.19, No.1, 18-23, January, 2009

DOI10.3740/MRSK.2009.19.1.018 Export Citation

결정질 실리콘 태양전지용 실리콘 기판의 표면 미세구조에 따른 곡강도 특성

The Flexural Strengths of Silicon Substrates with Various Surface Morphologies for Silicon Solar Cells

이준성, 권순우¹, 박하영, 김영도 , 김형준², 임희진, 윤세왕¹, 김동환 ^†

고려대학교 신소재공학과
¹대한제당주식회사 중앙연구소
²요업기술원 기능소재팀

Joon Sung Lee, Soonwoo Kwon¹, Hayoung Park, Young Do Kim , Hyeong-Jun Kim², Heejin Lim, Sewang Yoon¹, and Donghwan Kim^†

Department of Materials Science and Engineering, Korea University, Seoul 136-713, Republic of Korea
¹R&D Center, TS Corporation, Incheon 400-201, Republic of Korea
²Korea Institute of Ceramic Engineering & Technology, Icheon 467-843, Republic of Korea

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The influence of various surface morphologies on the mechanical strength of silicon substrates was investigated in this study. The yield for the solar cell industry is mainly related to the fracturing of silicon wafers during the manufacturing process. The flexural strengths of silicon substrates were influenced by the density of the pyramids as well as by the size and the rounded surface of the pyramids. To characterize and optimize the relevant texturing process in terms of mechanical stability and the fabrication yield, the mechanical properties of textured silicon substrates were investigated to optimize the size and morphology of random pyramids. Several types of silicon substrates were studied, including the planar type, a textured surface with large and small pyramids, and a textured surface with rounded pyramids. The surface morphology and a cross-section of the as-textured and fractured silicon substrates were investigated by scanning electron microscopy.

Keywords:solar cell;silicon;flexural strength;texturing

[References]

Fahrenbruch AL, Bube RH, Fundamentals of solar cells, p.10, Academic press, New York, USA (1983). (1983)
Markvart T, Castaner L, Practical Handbook of Photovoltaics: Fundamentals and Applications, p.72, Elsevier Ltd., Kidlington, UK (2003). (2003)
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Vazsonyi E, De Clercq K, Einhaus R, Van Kerschaver E, Said K, Poortmans J, Szlufcik J, Nijs J, Sol. Energy Mater. Sol. Cells, 57(2), 179 (1999)
Lang W, Mat. Sci. Eng., R17, 1 (1996)
Swanson RM, Prog. Photovolt: Res. Appl., 14, 443 (2006)
Munzer KA, Holdermann KT, Schlosser RE, Sterk S, IEEE T Electron Dev., 46(10), 2055 (1999)
Moldovan C, Iosub R, Dascalu D, Nechifor G, Sensor Actuator. B-Chem., 58, 438 (1999)
Papet P, Nichiporuk O, Kaminski A, Rozier Y, Kraiem J, Lelievre JF, Chaumartin A, Fave A, Lemiti M, Sol. Energy Mater. Sol. Cells, 90(15), 2319 (2006)
Iencinella D, Centurioni E, Rizzoli R, Zignani F, Sol. Energy Mater. Sol. Cells, 87(1-4), 725 (2005)

[Referenced By]

[Related Articles]

[1] Fahrenbruch AL, Bube RH, Fundamentals of solar cells, p.10, Academic press, New York, USA (1983). (1983)

[2] Markvart T, Castaner L, Practical Handbook of Photovoltaics: Fundamentals and Applications, p.72, Elsevier Ltd., Kidlington, UK (2003). (2003)

[3] Green MA, High Efficiency Silicon Solar Cells, p.69, Trans Tech Publications, Aedermannsdorf, Switzerland (1987). (1987)

[4] Vazsonyi E, De Clercq K, Einhaus R, Van Kerschaver E, Said K, Poortmans J, Szlufcik J, Nijs J, Sol. Energy Mater. Sol. Cells, 57(2), 179 (1999)

[5] Lang W, Mat. Sci. Eng., R17, 1 (1996)

[6] Swanson RM, Prog. Photovolt: Res. Appl., 14, 443 (2006)

[7] Munzer KA, Holdermann KT, Schlosser RE, Sterk S, IEEE T Electron Dev., 46(10), 2055 (1999)

[8] Moldovan C, Iosub R, Dascalu D, Nechifor G, Sensor Actuator. B-Chem., 58, 438 (1999)

[9] Papet P, Nichiporuk O, Kaminski A, Rozier Y, Kraiem J, Lelievre JF, Chaumartin A, Fave A, Lemiti M, Sol. Energy Mater. Sol. Cells, 90(15), 2319 (2006)

[10] Iencinella D, Centurioni E, Rizzoli R, Zignani F, Sol. Energy Mater. Sol. Cells, 87(1-4), 725 (2005)