Self-assembled vertically stacked van der Waals In2O3/In2S3 heterojunction for ultra-sensitive room-temperature NO2 gas detection
Year: 2025
Type: article
Abstract: by factors of 5.7 and 1.8, respectively. Furthermore, the sensor demonstrates outstanding selectivity, a low detection limit of 20.6 ppb, and excellent long-term stability. These superior sensing performances arise from optimized adsorption-desorption dynamics at the oxide/sulfide interface, enabled by the self-assembled vdW architecture. This study not only advances the scalable synthesis of 2D vdW heterostructures but also highlights interfacial engineering as a powerful strategy for designing next-generation, low-power gas sensors.
Authors: Yinfen Cheng, Nianzhong Ma, Zhong Li, Xinyi Hu, Lieqi Liu, Yi Liang, Tao Li, Jian Zhen Ou
Institutions: Chengdu University, Southwest Jiaotong University, RMIT University
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,470
Awards: G2330834300, G8936152295
OpenAlex ID: W4417184571