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Journal of Materials Science
Erschienen in: Journal of Materials Science 6/2018

11.12.2017 | Electronic materials

Photoresponse improvement in liquid-exfoliated SnSe nanosheets by reduced graphene oxide hybridization

verfasst von: Hui Qiao, Zongyu Huang, Xiaohui Ren, Hao Yao, Siwei Luo, Pinghua Tang, Xiang Qi, Jianxin Zhong

Erschienen in: Journal of Materials Science | Ausgabe 6/2018

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Abstract

The SnSe/reduced graphene oxide (SnSe/RGO) hybrid was synthesized by a simple hydrothermal reduction method using tin selenide (SnSe) nanosheets (NSs) and graphene oxide (GO), in which the two-dimensional SnSe NSs were peeled off by hydrothermal intercalation and exfoliation process, and GO was synthesized through an improved Hummers’ method. The characterization techniques including scanning electron microscopy and transmission electron microscopy verified a large-size SnSe NSs and SnSe/RGO hybrid. Meanwhile, X-ray diffraction and Raman spectra were carried out and confirmed the inherent optical and physical properties of SnSe NSs. In addition, the photoelectrochemical tests were carried out and proved that the photoresponse performances of as-prepared SnSe/RGO hybrid were greatly improved compared to that of sole SnSe NSs. When the bias potential was 0.8 V, the photocurrent density of SnSe/RGO hybrid was about 6.42 μA/cm2, which was approximately four times that of sole SnSe NSs (about 1.58 μA/cm2). Meanwhile, SnSe/RGO hybrid possessed faster photoresponse compared to sole SnSe NSs. The improvement in photoresponse performance is due to the hybridization of SnSe/RGO with good conductivity and the coupling between SnSe/RGO and SnSe NSs, which would be beneficial to promote the effective separation of photo-generated electron–hole pairs. Our results show that SnSe/RGO hybrid has a good application prospect in the field of photodetection.
Vorheriger Artikel The deposition of thin films of cadmium zinc sulfide Cd1−x Zn x S at 250 °C from spin-coated xanthato complexes: a potential route to window layers for photovoltaic cells
Nächster Artikel Enhanced stability of lead-free perovskite heterojunction for photovoltaic applications

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Metadaten
Titel
Photoresponse improvement in liquid-exfoliated SnSe nanosheets by reduced graphene oxide hybridization
verfasst von
Hui Qiao
Zongyu Huang
Xiaohui Ren
Hao Yao
Siwei Luo
Pinghua Tang
Xiang Qi
Jianxin Zhong
Publikationsdatum
11.12.2017
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 6/2018
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-017-1878-8

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