A highly efficient light-trapping structure for thin-film silicon solar cells

CORC > 半导体研究所 > 中国科学院半导体研究所 > 集成光电子学国家重点实验室

	A highly efficient light-trapping structure for thin-film silicon solar cells
	Zhao L ; Zuo YH ; Zhou CL ; Li HL ; Diao HW ; Wang WJ
刊名	solar energy, 84 (1): 110-115 jan 2010
	2010
卷号	84 期号:1 页码:110-115
关键词	Light-trapping Thin-film silicon solar cell Diffraction grating Distributed Bragg reflector Metal reflector COUPLED-WAVE ANALYSIS GRATINGS DIFFRACTION DESIGN
通讯作者	zhao, l, chinese acad sci, solar cell technol grp, key lab solar thermal energy & photovolta syst, inst elect engn, 6 beiertiao zhongguancun, beijing 100190, peoples r china. e-mail address: zhaolei@mail.iee.ac.cn
合作状况	其它
英文摘要	a highly efficient light-trapping structure, consisting of a diffractive grating, a distributed bragg reflector (dbr) and a metal reflector was proposed. as an example, the proposed light-trapping structure with an indium tin oxide (ito) diffraction grating, an a-si:h/ito dbr and an ag reflector was optimized by the simulation via rigorous coupled-wave analysis (rcwa) for a 2.0-mu m-thick c-si solar cell with an optimized ito front antireflection (ar) layer under the air mass 1.5 (am1.5) solar illumination. the weighted absorptance under the am1.5 solar spectrum (a(am1.5)) of the solar cell can reach to 69%, if the dbr is composed of 4 pairs of a-si:h/itos. if the number of a-si:h/ito pairs is up to 8, a larger a(am1.5) of 72% can be obtained. in contrast, if the ag reflector is not adopted, the combination of the optimized ito diffraction grating and the 8-pair a-si:h/ito dbr can only result in an a(am1.5) of 68%. as the reference, a(am1.5) = 31% for the solar cell only with the optimized ito front ar layer. so, the proposed structure can make the sunlight highly trapped in the solar cell. the adoption of the metal reflector is helpful to obtain highly efficient light-trapping effect with less number of dbr pairs, which makes that such light-trapping structure can be fabricated easily.; submitted by 阎军 (yanj@red.semi.ac.cn) on 2010-04-13t15:53:43z no. of bitstreams: 1 a highly efficient light-trapping structure for thin-film silicon solar cells.pdf: 456758 bytes, checksum: d3c4020df2a9c09c74d5b1bc23896538 (md5); approved for entry into archive by 阎军(yanj@red.semi.ac.cn) on 2010-04-13t16:05:08z (gmt) no. of bitstreams: 1 a highly efficient light-trapping structure for thin-film silicon solar cells.pdf: 456758 bytes, checksum: d3c4020df2a9c09c74d5b1bc23896538 (md5); made available in dspace on 2010-04-13t16:05:08z (gmt). no. of bitstreams: 1 a highly efficient light-trapping structure for thin-film silicon solar cells.pdf: 456758 bytes, checksum: d3c4020df2a9c09c74d5b1bc23896538 (md5) previous issue date: 2010; iee, cas 20080302; 其它
学科主题	半导体材料
收录类别	SCI
资助信息	iee, cas 20080302
语种	英语
公开日期	2010-04-13 ; 2010-10-15
内容类型	期刊论文
源URL	[http://ir.semi.ac.cn/handle/172111/11166]
专题	半导体研究所_集成光电子学国家重点实验室
推荐引用方式 GB/T 7714	Zhao L,Zuo YH,Zhou CL,et al. A highly efficient light-trapping structure for thin-film silicon solar cells[J]. solar energy, 84 (1): 110-115 jan 2010,2010,84(1):110-115.
APA	Zhao L,Zuo YH,Zhou CL,Li HL,Diao HW,&Wang WJ.(2010).A highly efficient light-trapping structure for thin-film silicon solar cells.solar energy, 84 (1): 110-115 jan 2010,84(1),110-115.
MLA	Zhao L,et al."A highly efficient light-trapping structure for thin-film silicon solar cells".solar energy, 84 (1): 110-115 jan 2010 84.1(2010):110-115.