Physisorption-Based Charge Transfer in Two-Dimensional SnS 2  for Selective and Reversible NO 2  Gas Sensing

Ou, Jian Zhen; Ge, Wanyin; Carey, Benjamin J.; Daeneke, Torben; Rotbart, Asaf; Shan, Wei; Wang, Yichao; Fu, Zhengqian; Chrimes, Adam F.; Wlodarski, Wojtek; Russo, Salvy P.; Li, Yong Xiang; Kalantar‐Zadeh, Kourosh

doi:10.1021/acsnano.5b04343

articleACS NanoOct 8, 2015Closed access

Physisorption-Based Charge Transfer in Two-Dimensional SnS 2 for Selective and Reversible NO 2 Gas Sensing

JZJian Zhen Ou WGWanyin Ge BJBenjamin J. Carey TDTorben Daeneke ARAsaf Rotbart

RMIT University · Chinese Academy of Sciences · +2 more institutions

PubMed

Indexed incrossrefpubmed

Abstract

Nitrogen dioxide (NO2) is a gas species that plays an important role in certain industrial, farming, and healthcare sectors. However, there are still significant challenges for NO2 sensing at low detection limits, especially in the presence of other interfering gases. The NO2 selectivity of current gas-sensing technologies is significantly traded-off with their sensitivity and reversibility as well as fabrication and operating costs. In this work, we present an important progress for selective and reversible NO2 sensing by demonstrating an economical sensing platform based on the charge transfer between physisorbed NO2 gas molecules and two-dimensional (2D) tin disulfide (SnS2) flakes at low operating…

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Topics & keywords

Topics

Keywords

Physisorption
Selectivity
Materials science
Fabrication
Molecule
Charge (physics)
Nanotechnology
Sensitivity (control systems)

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