Reduced graphene oxide/MoS2 hybrid films for room-temperature formaldehyde detection

被引：41

作者：

Li, Xian ^{[1
]}

Wang, Jing ^{[2
,3
]}

Xie, Dan ^{[1
]}

Xu, Jianlong ^{[4
]}

Xia, Yi ^{[2
,5
]}

Xiang, Lan ^{[2
]}

Komarneni, Sridhar ^{[3
]}

机构：

[1] Tsinghua Univ, Inst Microelect, Beijing 100084, Peoples R China

[2] Tsinghua Univ, Dept Chem Engn, Beijing 100084, Peoples R China

[3] Penn State Univ, Mat Res Lab, Mat Res Inst, University Pk, PA 16802 USA

[4] Soochow Univ, Inst Funct Nano & Soft Mat, Suzhou 215123, Peoples R China

[5] Kunming Univ Sci & Technol, Res Ctr Anal & Measurement, Kunming 650093, Peoples R China

来源：

MATERIALS LETTERS | 2017年 / 189卷

基金：

中国国家自然科学基金;

关键词：

Gas sensor; 2D materials; Hybrid film; Molybdenum disulfide; Formaldehyde; MOS2; FABRICATION;

D O I：

10.1016/j.matlet.2016.11.046

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A hybrid film composed of reduced graphene oxide (rGO) and molybdenum disulfide (MoS2) nanosheet-assemblies has been fabricated for high-performance formaldehyde (HCHO) detection, by a simple layer-by-layer self-assembly (LBL SA) method. The rGO/MoS2 hybrid films not only show improved sensitivity to HCHO at room temperature compared to solely rGO or MoS2 films, but also exhibit fast response characteristics and good reproducibility. The synergetic effects of rGO and MoS2 on HCHO sensing enhancement of the hybrid films are attributed to the energy level matching among rGO, MoS2 and HCHO, which lead to a two-stepped efficient electron transfer from HCHO to rGO.

引用

页码：42 / 45

页数：4

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