Abstract:In interdigitated back contact (IBC) solar cells, the metal-electrode coverage on a p-type emitter is optimized by a PC2D simulation. The result shows that the variation of the metal coverage ratio (MCR) will affect both the surface passivation and the electrode-contact properties for the p-type emitter in IBC solar cells. We find that when Rc ranges from 0.08 to 0.16Ω?cm2, the MCR is optimized with a value of 25% and 33%, resulting in a highest energy-conversion efficiency. The dependences of both Voc and fill factor on MCR are simulated in order to explore the mechanism of the IBC solar cells.
. [J]. 中国物理快报, 2013, 30(7): 78801-078801.
ZHANG Wei, CHEN Chen, JIA Rui, Janssen G. J. M., ZHANG Dai-Sheng, XING Zhao, Bronsveld P. C. P., Weeber A. W., JIN Zhi, LIU Xin-Yu . Optimization of Metal Coverage on the Emitter in n-Type Interdigitated Back Contact Solar Cells Using a PC2D Simulation. Chin. Phys. Lett., 2013, 30(7): 78801-078801.
[1] Zhao J H, Wang A H, Altermatt P P, Wenham S R and Green M A 1996 Sol. Energy Mater. Sol. Cells41 87 [2] Cousins P J, Smith D D, Luan H C, Manning J, Dennis T D, Waldhauer A, Wilson K E, Harley G and Muligan W P 2010 The 35th IEEE Photovoltaic Specialists Conference (PVSC) (Honolulu, Hawaii USA 20–25 June 2010) p 000275 [3] Granek F, Hermle M, Reichel C, Schultz-Wittmann O and Glunz S W 2008 The 23rd European Photovoltaic Solar Energy Conference (EUPVSEC) (Valencia, Spain 1–4 September 2008) p 991 [4] Tsunomura Y, Yoshimine Y, Taguchi M, Baba T, Kinoshita T, Kanno H, Sakata H, Maruyama E and Tanaka M 2009 Sol. Energy Mater. Sol. Cells93 670 [5] Chun G, Kerschaver E V, Robbelein J, Janssens T, Posthuma N, Poortmans J and Mertens R 2010 IEEE Electron Device Lett.31 576 [6] Woehl R, Krause J, Granek F and Biro D 2011 IEEE Electron Device Lett.32 345 [7] Bock R, Mau S, Schmidt J and Brendel R 2010 Appl. Phys. Lett.96 263507 [8] Zhang X, Liu B W, Xia Y 2012 Acta Phys. Sin.61 187303 (in Chinese) [9] Peng C, Liang S W, Lee J G, Chiu F L and Cotter J E 2012 The 27rd European Photovoltaic Solar Energy Conference (EUPVSEC) (Frankfurt, German 24–28 September 2005) p 1296 [10] F Granek 2009 PhD Dissertation (Fraunhofer Institute for Solar Energy System) [11] Basore P A and Cabanas-Holmen K 2011 IEEE J. Photovoltaics1 72 [12] Kim U C and Jiang X Q 2012 Chin. Phys. Lett.29 067301 [13] Cabanas-Holmen K and Basore P A 2012 The 27rd European Photovoltaic Solar Energy Conference (EUPVSEC) (Frankfurt, German 24–28 September 2005) p 1462 [14] Wenham S R, Green M A, Watt M E and Corkish R 2007 Applied Photovaltaics (UK: Earthscan) p 51