NDLI: 2D/2D heterojunction of $g–C_{3}N_{4}/SnS_{2}$: room-temperature sensing material for ultrasensitive and rapid-recoverable $NO_{2}$ detection

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2D/2D heterojunction of $g–C_{3}N_{4}/SnS_{2}$: room-temperature sensing material for ultrasensitive and rapid-recoverable $NO_{2}$ detection

Content Provider	Scilit
Author	Sun, Quan Hao, Juanyuan Zheng, Shengliang Wan, Peng Li, Jialu Zhang, Di Li, Yanqiu Wang, Tingting Wang, You
Copyright Year	2020
Description	Journal: Nanotechnology Heterojunction engineering plays an indispensable role in improving gas-sensing performance. However, rational heterojunction engineering to achieve room-temperature $NO_{2}$ sensing with both high response and rapid recovery is still a challenge. Herein, a 2D/2D heterojunction of $g–C_{3}N_{4}/SnS_{2}$ is designed to improve the sensing performance of $SnS_{2}$ and used for ultrasensitive and rapid-recoverable $NO_{2}$ detection at room temperature. The pristine $SnS_{2}$ fails to work at room temperature because of its high resistivity and weak adsorption to $NO_{2}$. After combination with $g–C_{3}N_{4}$ nanosheets, the $g–C_{3}N_{4}/SnS_{2}$-based sensor exhibits an extremely high response (503%) and short recovery time (166 s) towards 1 ppm $NO_{2}$ at room temperature. The improved sensing performance is primarily attributed to the increased adsorption sites and enhanced charge transfer induced by the 2D/2D heterojunctions with large interface contact area. This achievement of $g–C_{3}N_{4}/SnS_{2}$ 2D/2D heterostructures demonstrates a promising pathway for the design of sensitive gas-sensing material based on a 2D/2D heterojunction strategy.
Related Links	https://iopscience.iop.org/article/10.1088/1361-6528/aba05b/pdf
ISSN	09574484
e-ISSN	13616528
DOI	10.1088/1361-6528/aba05b
Journal	Nanotechnology
Issue Number	42
Volume Number	31
Language	English
Publisher	IOP Publishing
Publisher Date	2020-06-26
Access Restriction	Open
Subject Keyword	Journal: Nanotechnology Industrial Relations 2d/2d Heterojunction
Content Type	Text
Resource Type	Article
Subject	Chemistry Nanoscience and Nanotechnology Mechanics of Materials Mechanical Engineering Bioengineering Electrical and Electronic Engineering

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