TiO2/ZnIn2S4薄膜异质结制备及室温下NO2气敏性能研究
Preparation of TiO2/ZnIn2S4 Film Heterojunction and Study of NO2 Gas Sensitive Properties at Room Temperature
摘要: 二维(2D)层状金属硫化物因其超薄的纳米片结构、较大的比表面积、丰富的边缘位点以及弱范德华键而备受关注，尤其在低温下气体传感领域展现出巨大潜力。构建异质结构是提升二维硫化物半导体传感性能的有效策略之一。本文通过水热法构建了ZnIn2S4纳米墙与TiO2纳米棒的异质结构，通过优化界面处的电子转移，从而提高了气体传感性能。优化结构在室温下对NO2具有较高的响应、优异的气体选择性，证明了ZnIn2S4在应用于NO2气体传感方面的巨大潜力。
Abstract: Two-dimensional (2D) layered metal sulfides have attracted much attention due to their ultra-thin nanosheet structure, large specific surface area, abundant marginal sites and weak van der Waals bonds, especially in the field of gas sensing at low temperatures. Constructing heterogeneous structures is one of the effective strategies to improve the sensing performance of 2D sulfide semiconductors. In this paper, the heterogeneous structure of ZnIn2S4 nanowall and TiO2 nanorods was constructed by hydrothermal method, and the electron transfer at the interface was optimized to improve the gas sensing performance. The optimized structure has a high response to NO2 at room temperature and excellent gas selectivity, demonstrating the great potential of ZnIn2S4 for NO2 gas sensing applications.
文章引用：孙梦瑾, 高云. TiO2/ZnIn2S4薄膜异质结制备及室温下NO2气敏性能研究[J]. 纳米技术, 2025, 15(2): 22-33. https://doi.org/10.12677/nat.2025.152004

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