Simin Sun , Yuan Zhang , Qiyue Gao , Nana Zhang , PingAn Hu , Wei Feng
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引用次数: 0
Abstract
Self-powered photoelectrochemical-type (PEC) ultraviolet photodetectors (UV PDs) have been rapidly developed owing to their low-cost fabrication and good photodetection. However, achieving high-performance and self-powered PEC UV PDs based on an individual material is still challenging. Therefore, developing more wide bandgap semiconductors for high-performance PEC UV PDs is attractive. Here, we demonstrate that ZnAl-LDH is suitable for self-powered PEC UV PDs with high responsivity and excellent wavelength selectivity for the first time. The responsivity is 29.25 mA/W (254 nm irradiation) and the UV/visible rejection ratio is 1037, surpassing most PEC UV PDs. Furthermore, the PEC UV PDs have fast response, good stability, and underwater optical communication capability. This work offers more chances for the development of high-performance PEC UV PDs and demonstrates the potential application of ZnAl-LDH in underwater optoelectronic devices.
期刊介绍：
Nano Materials Science (NMS) is an international and interdisciplinary, open access, scholarly journal. NMS publishes peer-reviewed original articles and reviews on nanoscale material science and nanometer devices, with topics encompassing preparation and processing; high-throughput characterization; material performance evaluation and application of material characteristics such as the microstructure and properties of one-dimensional, two-dimensional, and three-dimensional nanostructured and nanofunctional materials; design, preparation, and processing techniques; and performance evaluation technology and nanometer device applications.
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