Zhang Xinmiao, Li Hongye, Wang Gang, Wang Shimin, Li Jiang, Song Jianqiao, Jin Mengjing, Zhou Jinyuan, Chang Peng, Pan Xiaojun
School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, People's Republic of China.
Nanotechnology. 2024 May 23;35(32). doi: 10.1088/1361-6528/ad4711.
There are several prospective applications for omnidirectional ultraviolet (UV) detectors and underwater detection detectors in optical systems and optical fields. In this work, ZnO nanorods arrays were grown on carbon fibers (CFs). An appropriate amount of Ag nanoparticles (NPs) was deposited on the surface of ZnO nanorods by photochemical deposition. This improved the performance of photoelectrochemical (PEC) based UV detectors. Under 365 nm and 10 mW cmUV irradiation, the photocurrent density of the 30s-Ag/ZnO@CFs based PEC UV detector can reach 1.28 mA cm, which is about 7 times that of the ZnO@CFs based PEC UV detector, and the rising time is shortened from 0.17 to 0.10 s. The reason is that increased absorption of ultraviolet light induced by the localized surface plasmon resonance. In addition, the detector exhibits a good flexibility and remains flexible after hundreds of bends and twists. Moreover, the detector is responsive in the range of rotation angle from 0° to 360°. It provides an insight to improve the photoelectric performance and underwater omnidirectional detection ability of the PEC UV detector.
全向紫外（UV）探测器和水下探测探测器在光学系统和光学领域有多种潜在应用。在这项工作中，氧化锌纳米棒阵列生长在碳纤维（CFs）上。通过光化学沉积在氧化锌纳米棒表面沉积适量的银纳米颗粒（NPs）。这提高了基于光电化学（PEC）的紫外探测器的性能。在365nm和10mW/cm²的紫外光照射下，基于30s-Ag/ZnO@CFs的PEC紫外探测器的光电流密度可达1.28mA/cm²，约为基于ZnO@CFs的PEC紫外探测器的7倍，上升时间从0.17s缩短至0.10s。原因是局域表面等离子体共振引起的紫外光吸收增加。此外，该探测器具有良好的柔韧性，在数百次弯曲和扭转后仍保持柔韧性。而且，该探测器在0°至360°的旋转角度范围内都有响应。它为提高PEC紫外探测器的光电性能和水下全向探测能力提供了思路。
