The study on saturation current and ideality factor of CdTe solar cell based on CdS window layer deposited with hydrogen peroxide

doi:10.1088/1361-6641/ab4ad3

	The study on saturation current and ideality factor of CdTe solar cell based on CdS window layer deposited with hydrogen peroxide
	Lv, Bin 2,3; Yan, Bo 2,3; Cai, Pinggen 2,3; Gao, Fan 2,3; Ye, Ziran 2,3; Li, Yun 2,3; Chen, Naibo 2,3; Sui, Chenghua 3; Lin, Qiang 2,3; Cheng, Guofeng 4
刊名	SEMICONDUCTOR SCIENCE AND TECHNOLOGY
	2019-11-01
卷号	34 期号:11 页码:8
关键词	saturation current ideality factor open-circuit voltage CBD hydrogen peroxide CdS:O/CdTe heterojunction
ISSN号	0268-1242
DOI	10.1088/1361-6641/ab4ad3
通讯作者	Lv, Bin(binlv@zjut.edu.cn) ; Cheng, Guofeng(gfcheng@rnail.sic.ac.cn)
英文摘要	By adding hydrogen peroxide (H2O2) to the solution, a more compact cadmium sulfide (CdS) film with larger optical band gap is fabricated by chemical bath deposition method. The oxidation of CdS is confirmed by the formation of cadmium sulfate (CdSO4) in the CdS window layer via x-ray photoelectron spectroscopy investigation. The analysis of quantum efficiency considering the alloy CdS1-yTey shows that the oxygenated CdS suppress the S-Te interdiffusion, which promotes the spectral response in short-wave range. Moreover, this oxygenated CdS layer promoted the conversion efficiency of the cadmium telluride (CdTe) based solar cell from 11.2% to 14.0% due to the improvement of open-circuit voltage and the fill factor. The transport mechanisms of saturation current are evaluated by temperature dependent current-voltage curves. Results show that the oxygenated window layer reduces both the interfacial and bulk recombination, thus improves the ideality factor. The decrease of bulk recombination in depletion region is attributed to the fewer trap level induced from S-Te interdiffusion. The decrease of interfacial recombination is attributed to the larger optical band gap of oxygenated CdS, which results in a spike-like conduction band alignment at CdS/CdTe heterojunction.
资助项目	National Natural Science Foundation of China[61705197] ; National Natural Science Foundation of China[11604295] ; Natural Science Foundation of Zhejiang Province[LQ17C100002] ; Open project of National Laboratory of Solid State Microstructures[M31033] ; Natural Science Foundation of Zhejiang University of Technology[1301109079408]
WOS关键词	S-TE INTERDIFFUSION ; THIN-FILMS ; EFFICIENCY ; CDCL2
WOS研究方向	Engineering ; Materials Science ; Physics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000507379500025
内容类型	期刊论文
源URL	[http://119.78.100.183/handle/2S10ELR8/282505]
专题	中国科学院上海药物研究所
通讯作者	Lv, Bin; Cheng, Guofeng
作者单位	1.Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China 2.Zhejiang Univ Technol, Collaborat Innovat Ctr Biomed Phys Informat Techn, Hangzhou 310023, Peoples R China 3.Zhejiang Univ Technol, Dept Appl Phys, Hangzhou 310023, Peoples R China 4.Chinese Acad Sci, Anal & Testing Ctr Inorgan Mat, Shanghai Inst Ceram, Shanghai 200050, Peoples R China
推荐引用方式 GB/T 7714	Lv, Bin,Yan, Bo,Cai, Pinggen,et al. The study on saturation current and ideality factor of CdTe solar cell based on CdS window layer deposited with hydrogen peroxide[J]. SEMICONDUCTOR SCIENCE AND TECHNOLOGY,2019,34(11):8.
APA	Lv, Bin.,Yan, Bo.,Cai, Pinggen.,Gao, Fan.,Ye, Ziran.,...&Wu, Xiaoshan.(2019).The study on saturation current and ideality factor of CdTe solar cell based on CdS window layer deposited with hydrogen peroxide.SEMICONDUCTOR SCIENCE AND TECHNOLOGY,34(11),8.
MLA	Lv, Bin,et al."The study on saturation current and ideality factor of CdTe solar cell based on CdS window layer deposited with hydrogen peroxide".SEMICONDUCTOR SCIENCE AND TECHNOLOGY 34.11(2019):8.