Intermediate Band Material of Titanium-Doped Tin Disulfide for Wide Spectrum Solar Absorption

doi:10.1021/acs.inorgchem.8b00143

CORC > 化学研究所 > 中国科学院化学研究所

	Intermediate Band Material of Titanium-Doped Tin Disulfide for Wide Spectrum Solar Absorption
	Hu, Keyan 1,2; Wang, Dong 1; Zhao, Wei 1; Gu, Yuhao 3,4; Bu, Kejun 1; Pan, Jie 1; Qin, Peng 1; Zhang, Xian 1,3,4; Huang, Fuqiang 1,3,4
刊名	INORGANIC CHEMISTRY
	2018-04-02
卷号	57 期号:7 页码:3956-3962
ISSN号	0020-1669
DOI	10.1021/acs.inorgchem.8b00143
英文摘要	Intermediate band (IB) materials are of great significance due to their superior solar absorption properties. Here, two IBs peaking at 0.88 and 1.33 eV are reported to be present in the forbidden gap of semiconducting SnS2 (E-g = 2.21 eV) by doping titanium up to 6 atom % into the Sn site via a solid-state reaction at 923 K. The solid solution of Sn1-xTixS2 is able to be formed, which is attributed to the isostructural structure of SnS2 and TiS2. These two IBs were detected in the UV-vis-NIR absorption spectra with the appearance of two additional absorption responses at the respective regions, which in good agreement with the condusion of first-principles calculations. The valence band maximum (VBM) consists mostly of the S 3p state, and the conduction band minimum (CBM) is the hybrid state composing of Ti 3d (e(g)), S 3p, and Sn 5s, and the IBs are mainly the nondegenerate t(2g) states of Ti 3d orbitals. The electronic states of Ti 3d reveal a good ability to transfer electrons between metal and S atoms. These wide-spectrum absorption lBs bring about more solar energy utilization to enhance solar thermal collection and photocatalytic degradation of methyl orange.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000429283200053
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/46117]
专题	中国科学院化学研究所
通讯作者	Zhang, Xian; Huang, Fuqiang
作者单位	1.Chinese Acad Sci, Shanghai Inst Ceram, CAS Key Lab Mat Energy Convers, Shanghai 200050, Peoples R China 2.Jingdezhen Ceram Inst, Sch Mech & Elect Engn, Jingdezhen 333403, Peoples R China 3.Peking Univ, Coll Chem & Mol Engn, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China 4.Peking Univ, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Hu, Keyan,Wang, Dong,Zhao, Wei,et al. Intermediate Band Material of Titanium-Doped Tin Disulfide for Wide Spectrum Solar Absorption[J]. INORGANIC CHEMISTRY,2018,57(7):3956-3962.
APA	Hu, Keyan.,Wang, Dong.,Zhao, Wei.,Gu, Yuhao.,Bu, Kejun.,...&Huang, Fuqiang.(2018).Intermediate Band Material of Titanium-Doped Tin Disulfide for Wide Spectrum Solar Absorption.INORGANIC CHEMISTRY,57(7),3956-3962.
MLA	Hu, Keyan,et al."Intermediate Band Material of Titanium-Doped Tin Disulfide for Wide Spectrum Solar Absorption".INORGANIC CHEMISTRY 57.7(2018):3956-3962.