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A Paper‐Based Wearable Photodetector for Simultaneous UV Intensity and Dosage Measurement
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2021-03-10 , DOI: 10.1002/adfm.202100026 Sa Cai 1 , Chaolei Zuo 1 , Jiayu Zhang 1 , Hui Liu 1 , Xiaosheng Fang 1
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2021-03-10 , DOI: 10.1002/adfm.202100026 Sa Cai 1 , Chaolei Zuo 1 , Jiayu Zhang 1 , Hui Liu 1 , Xiaosheng Fang 1
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Photodetectors, which convert the light signal into other forms of signal, have been under the spotlight of research for many years because they are widely applied in monitoring, communication, and imaging. Most of the currently available photodetectors can output electrical signals to indicate the transient light intensity, while some display color change to reveal the absorbed light dosage. However, there is no device that can tell the transient light intensity and accumulated light dosage at the same time. Here, a paper‐based wearable photodetector that can simultaneously measure transient light intensity and accumulated light dosage is reported. The phosphomolybdic acid/citric acid system, whose color change can be observed by the naked eye, is designed as the photochromic material to combine with photodetective materials (using 2D Sr2Nb3O10 and ZnO nanoparticle as examples) on paper. Such paper‐based photodetector fully utilizes natural hygroscopicity and softness of paper, showing decent flexibility. Its optoelectronic signal remains stable even after 1000 cycles of bending. To the best of one's knowledge, this is the first photodetector that can tell light intensity and dosage simultaneously. This work introduces a new type of wearable photodetector by structure design and material selection, shedding light on more novel works for convenient and practical photodetection.
中文翻译：
纸基可穿戴光电探测器，可同时测量紫外线强度和剂量
将光信号转换为其他信号形式的光电探测器已受到研究的关注，因为它们已广泛应用于监视，通信和成像。当前大多数可用的光电检测器可以输出电信号以指示瞬态光强度，而某些显示颜色发生变化以显示吸收的光剂量。但是，没有可以同时分辨瞬态光强度和累积光剂量的设备。此处报道了一种可同时测量瞬态光强度和累积光剂量的纸质可穿戴光电探测器。磷钼酸/柠檬酸体系可以通过肉眼观察其颜色变化，它被设计为光致变色材料，与光电检测材料结合使用（使用2D Sr例如在纸上的2 Nb 3 O 10和ZnO纳米颗粒。这种基于纸张的光电探测器充分利用了纸张的自然吸湿性和柔软性，显示出良好的柔韧性。即使经过1000次弯曲，其光电信号仍保持稳定。据我所知，这是第一台可以同时显示光强度和剂量的光电探测器。这项工作通过结构设计和材料选择引入了一种新型可穿戴式光电探测器，为更方便实用的光电探测提供了更多新颖的作品。
更新日期：2021-05-17
中文翻译：
纸基可穿戴光电探测器，可同时测量紫外线强度和剂量
将光信号转换为其他信号形式的光电探测器已受到研究的关注，因为它们已广泛应用于监视，通信和成像。当前大多数可用的光电检测器可以输出电信号以指示瞬态光强度，而某些显示颜色发生变化以显示吸收的光剂量。但是，没有可以同时分辨瞬态光强度和累积光剂量的设备。此处报道了一种可同时测量瞬态光强度和累积光剂量的纸质可穿戴光电探测器。磷钼酸/柠檬酸体系可以通过肉眼观察其颜色变化，它被设计为光致变色材料，与光电检测材料结合使用（使用2D Sr例如在纸上的2 Nb 3 O 10和ZnO纳米颗粒。这种基于纸张的光电探测器充分利用了纸张的自然吸湿性和柔软性，显示出良好的柔韧性。即使经过1000次弯曲，其光电信号仍保持稳定。据我所知，这是第一台可以同时显示光强度和剂量的光电探测器。这项工作通过结构设计和材料选择引入了一种新型可穿戴式光电探测器，为更方便实用的光电探测提供了更多新颖的作品。
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