A Plant‐inspired Light Transducer for High‐performance Near‐infrared Light Mediated Gas Sensing
A Plant‐inspired Light Transducer for High‐performance Near‐infrared Light Mediated Gas Sensing
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DOI：
10.1002/adfm.202215099
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发表时间：
2023-02
影响因子：
19
通讯作者：
Hongping Liang;Xin Guo;Lanpeng Guo;Siying Liu;Qiuqiang Zhan;Haihong Yang;Hao Li;N. F. de Rooij;Yi-Kuen Lee;Paddy J. French;Yao Wang;G. Zhou
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文献类型：
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作者：
Hongping Liang;Xin Guo;Lanpeng Guo;Siying Liu;Qiuqiang Zhan;Haihong Yang;Hao Li;N. F. de Rooij;Yi-Kuen Lee;Paddy J. French;Yao Wang;G. Zhou
构建近红外光（NIR）光增强型室温气体传感器在实际应用中变得越来越有前景。在这项研究中，借鉴植物叶绿素类囊体膜的结构和光合作用过程，通过匹配镧系元素掺杂上转换纳米粒子（UCNP）的上转换发射和所制备的纳米复合材料的紫外-可见吸收，构建了第一个“类囊体膜”结构甲醛（HCHO）传感器。 NIR介导的传感器表现出优异的性能，包括超高响应（Ra / Rg = 2.22，1 ppm）、低实际检测限（50 ppb）、可靠的重复性、高选择性和宽带光谱响应。通过远程和外部刺激测试证实了近红外介导的气体传感器的实用性。传感机理研究表明，基于UCNPs的光传感器在非辐射/辐射能量转移过程中产生更多的光诱导氧用于气体响应，对显着提高传感器的传感性能起到关键作用。使用 ZnO、In2O3 和 SnO2 系统验证了基于 UCNP 的近红外介导气体传感器的通用性。这项工作为制造高性能近红外介导的气体传感器铺平了道路，并将扩大近红外光的应用领域。
Constructing near‐infrared light (NIR) light‐enhanced room temperature gas sensors is becoming more promising for practical application. In this study, learning from the structure and photosynthetic process of chlorophyll thylakoid membranes in plants, the first “Thylakoid membrane” structural formaldehyde (HCHO) sensor is constructed by matching the upconversion emission of the lanthanide‐doped upconversion nanoparticles (UCNPs) and the UV–vis adsorption of the as‐prepared nanocomposites. The NIR‐mediated sensor exhibits excellent performances, including ultra‐high response (Ra / Rg = 2.22, 1 ppm), low practical limit of detection (50 ppb), reliable repeatability, high selectivity, and broadband spectral response. The practicality of the NIR‐mediated gas sensor is confirmed through the remote and external stimulation test. A study of sensing mechanism demonstrates that it is the UCNPs‐based light transducer produces more light‐induced oxygen species for gas response in the process of non‐radiative/radiative energy transfer, playing a key role in significantly improving the sensing properties of the sensor. The universality of NIR‐mediated gas sensors based on UCNPs is verified using ZnO, In2O3, and SnO2 systems. This work paves a way for fabricating high‐performance NIR‐mediated gas sensors and will expand the application fields of NIR light.