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Title: Fast Photoresponse From 1T Tin Diselenide Atomic Layers
Authors: Yu, Peng
Yu, Xuechao
Lu, Wanglin
Sun, Linfeng
Du, Kezhao
Liu, Fucai
Fu, Wei
Zeng, Qingsheng
Shen, Zexiang
Jin, Chuanhong
Wang, Qi Jie
Liu, Zheng
Hsin, Lin
Keywords: 2D materials
Issue Date: 2015
Source: Yu, P., Yu, X., Lu, W., Hsin, L., Sun, L., Du, K., et al. (2015). Fast Photoresponse From 1T Tin Diselenide Atomic Layers. Advanced Functional Materials, 26(1), 137-145.
Series/Report no.: Advanced Functional Materials
Abstract: Atomically layered 2D crystals such as transitional metal dichalcogenides (TMDs) provide an enchanting landscape for optoelectronic applications due to their unique atomic structures. They have been most intensively studied with 2H phase for easy fabrication and manipulation. 1T phase material could possess better electrocatalytic and photocatalytic properties, while they are difficult to fabricate. Herein, for the first time, the atomically layered 1T phase tin diselenides (SnSe2, III-IV compound) are successfully exfoliated by the method of mechanical exfoliation from bulk single crystals, grown via the chemical vapor transport method without transport gas. More attractively, the high performance atomically layered SnSe2 photodetector has been first successfully fabricated, which displays a good responsivity of 0.5 A W−1 and a fast photoresponse down to ≈2 ms at room temperature, one of the fastest response times among all types of 2D photodetectors. It makes SnSe2 a promising candidate for high performance optoelectronic devices. Moreover, high performance bilayered SnSe2 field-effect transistors are also demonstrated with a mobility of ≈4 cm2 V−1 s−1 and an on/off ratio of 103 at room temperature. The results demonstrate that few layered 1T TMD materials are relatively stable in air and can be exploited for various electrical and optical applications.
ISSN: 1616-301X
DOI: 10.1002/adfm.201503789
Rights: © 2015 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. This is the author created version of a work that has been peer reviewed and accepted for publication by Advanced Functional Materials, Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles
MSE Journal Articles
SPMS Journal Articles

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