Front side degradation of silicon solar cells by rear side laser processing

摘要：

　　We show an impact of rear side laser processing on the front surface recombination of thin silicon solar cells.The front surface recombination velocity of 45 μm thick back-contact back-junction monocrystalline silicon solar cells increases from 500 cm s-1 to 12000 cm s.1 by a rear side laser contact separation process.This increased recombination decreases the energy conversion efficiency from 18.8% to 7.5%.The internal quantum efficiency at short wavelength of 600 nm is also decreased from 0.88 to 0.33 confirming the increased front surface recombination by rear side laser processing.

作者: Felix Haase Udo R(o)mer Tobias Neubert Jan Hendrik Petermann Robby Peibst Nils-Peter Harder Sarah Kajari-Schr(o)der Rolf Brendel

作者单位: Institute for Solar Energy Research Hamelin(ISFH),Am Ohrberg 1,D-31860 Emmerthal,GERMANY Institute for Solar Energy Research Hamelin(ISFH),Am Ohrberg 1,D-31860 Emmerthal,GERMANY;Institute o Institute for Solar Energy Research Hamelin(ISFH),Am Ohrberg 1,D-31860 Emmerthal,GERMANY;Institute f

会议类型: 国际会议

会议名称: The 22nd International Photovoltaic Science and Engineering Conference (第22届国际光伏科学与工程会议)

会议地点: 杭州

会议语种:英文

页码: 1-5

在线出版日期: 2012-11-05（万方平台首次上网日期，不代表论文的发表时间）