Tsai Yu-Sheng, Wang Deng-Yi, Chang Jia-Jie, Liang Keng-Tien, Lin Ya-Hsuan, Kuo Chih-Chen, Lu Ssu-Han, Wu Yewchung Sermon, Lee Lukas Jyuhn-Hsiarn, Chen Hsiang, Wuu Dong-Sing
Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan.
Department of Applied Materials and Optoelectronic Engineering, College of Science and Technology, National Chi Nan University, Puli 545, Taiwan.
Membranes (Basel). 2021 Nov 22;11(11):903. doi: 10.3390/membranes11110903.
ZnO/ZnS nanocomposite-based nanostructures exhibit dual light and gas sensing capabilities. To further boost the light/dual sensing properties, gold nanoparticles (Au NPs) were incorporated into the core-shell structures. Multiple material characterizations revealed that Au NPs were successfully well spread and decorated on ZnO/ZnS nanostructures. Furthermore, our findings show that the addition of Au NPs could enhance both 365 nm UV light sensing and hydrogen gas sensing in terms of light/gas sensitivity and light/gas response time. We postulate that the optimization of gas/light dual sensing capability may result from the induced electric field and inhabitation of electron-hole recombination. Owing to their compact size, simple fabrication, and stable response, ZnO/ZnS/Au NPs-based light/gas dual sensors are promising for future extreme environmental monitoring.
基于ZnO/ZnS纳米复合材料的纳米结构具有光和气体双重传感能力。为了进一步提升光/双重传感性能，将金纳米颗粒（Au NPs）引入核壳结构中。多种材料表征表明，Au NPs成功地良好分散并修饰在ZnO/ZnS纳米结构上。此外，我们的研究结果表明，添加Au NPs在光/气体灵敏度和光/气体响应时间方面，能够增强365 nm紫外光传感和氢气传感。我们推测，气体/光双重传感能力的优化可能源于感应电场以及电子-空穴复合的抑制。由于其尺寸紧凑、制造简单且响应稳定，基于ZnO/ZnS/Au NPs的光/气体双重传感器在未来极端环境监测中具有广阔前景。
