Issue 33, 2015

Highly sensitive and fast phototransistor based on large size CVD-grown SnS2 nanosheets

Abstract

A facile and fruitful CVD method is reported for the first time, to synthesize high-quality hexagonal SnS2 nanosheets on carbon cloth via in situ sulfurization of SnO2. Moreover, highly sensitive phototransistors based on SnS2 with an on/off ratio surpassing 106 under ambient conditions and a rising time as short as 22 ms under vacuum are fabricated, which are superior than most phototransistors based on LMDs. Electrical transport measurements at varied temperatures together with theoretical calculations verify that sulfur vacancies generated by the growth process would induce a defect level near the bottom of the conduction band, which significantly affects the performance of the SnS2 device. These findings may open up a new pathway for the synthesis of LMDs, shed light on the effects of defects on devices and expand the building blocks for high performance optoelectronic devices.

Graphical abstract: Highly sensitive and fast phototransistor based on large size CVD-grown SnS2 nanosheets

Supplementary files

Article information

Article type
Paper
Submitted
23 Jun 2015
Accepted
24 Jul 2015
First published
28 Jul 2015

Nanoscale, 2015,7, 14093-14099

Author version available

Highly sensitive and fast phototransistor based on large size CVD-grown SnS2 nanosheets

Y. Huang, H. Deng, K. Xu, Z. Wang, Q. Wang, F. Wang, F. Wang, X. Zhan, S. Li, J. Luo and J. He, Nanoscale, 2015, 7, 14093 DOI: 10.1039/C5NR04174K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements