Facile synthesis of ZnIn2S4/Cu2O hierarchical heterostructures for enhanced selectivity and sensitivity of NH3 gas at room temperature

Kranthi Kumar Bedala,Prasad Gonugunta, Mohammad Soleimani,Eszter Mádai,Peyman Taheri,Sandeep Kumar Padamati, P. Nagaraju,G. Upender,B. Vijaya Kumar

APPLIED SURFACE SCIENCE（2023）

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摘要

•Improved gas sensing performance of Cu2O by creating a heterostructure with 2D ZnIn2S4 at room temperature.•Impressive gas sensitivity, low limit of detection (1 ppm), and fast response/recovery times (37/25) exhibited by ZIS-10.•The electron transfer at the interface through -S-In-S-In-S-O-Cu-O- pathway responsible for enhanced sensing performance.

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关键词

ZnIn2S4,Cu2O,p-n heterojunction,HRTEM,Chemoresistance,NH3 sensor

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