Intermediate band induced by p-block metalloid antimony in SnS2 for higher solar energy utilization

doi:10.1016/j.mtcomm.2020.101333

SIC OpenIR

	Intermediate band induced by p-block metalloid antimony in SnS2 for higher solar energy utilization
	Hu, KY; Gu, YH; Xu, ZA; Wang, D; Liu, XY; Zhao, W; Huang, FQ
	2020-09-01
Source Publication	MATERIALS TODAY COMMUNICATIONS
ISSN	2352-4928
Subtype	Article
Abstract	Semiconductors with intermediate bands have attracted tremendous attention due to their superior solar energy utilization. Herein, we propose a simple approach to introduce the intermediate band through substituting tin by p-block metalloid antimony in SnS2. Experimentally, Sn1-xSbxS2 (x up to 0.06) semiconductors possessing an intermediate band were successfully synthesized through solid state reactions. After antimony doping, two absorption edges appear at 2.31 eV and 1.63 eV in the visible light region, and one absorption shoulder starting at 0.68 eV emerges in the infrared region, as observed from the UV-vis-NIR absorption spectra. These typical intermediate band absorption features are consistent with our first principles calculations. The state of the intermediate band of Sn1-xSbxS2 is mainly composed of the Sb-5s orbital from maximally-localized Wannier function analysis. Owing to the antimony intermediate band extending the solar absorption range, Sn1-xSbxS2 semiconductors exhibit a higher utilization of solar energy compared with pristine SnS2.
DOI	10.1016/j.mtcomm.2020.101333
WOS Keyword	2-DIMENSIONAL SNS2 ; DOPED SNS2 ; PHOTOCATALYTIC ACTIVITY ; OPTICAL-PROPERTIES ; PERFORMANCE ; NANOSHEETS ; ABSORBERS ; DRIVEN
Language	英语
WOS Research Area	Materials Science
Publisher	ELSEVIER
Citation statistics
Document Type	期刊论文
Identifier	http://ir.sic.ac.cn/handle/331005/27780
Collection	中国科学院上海硅酸盐研究所
Recommended Citation GB/T 7714	Hu, KY,Gu, YH,Xu, ZA,et al. Intermediate band induced by p-block metalloid antimony in SnS2 for higher solar energy utilization[J]. MATERIALS TODAY COMMUNICATIONS,2020.
APA	Hu, KY.,Gu, YH.,Xu, ZA.,Wang, D.,Liu, XY.,...&Huang, FQ.(2020).Intermediate band induced by p-block metalloid antimony in SnS2 for higher solar energy utilization.MATERIALS TODAY COMMUNICATIONS.
MLA	Hu, KY,et al."Intermediate band induced by p-block metalloid antimony in SnS2 for higher solar energy utilization".MATERIALS TODAY COMMUNICATIONS (2020).

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