@article{Li2025, 
author = {Xinghan Li and Zhitao Shao and Yuan Zhang and Dongyue Tian and Xinran Hu and Wenhui Li and Junxin Zhou and Nana Zhang and Sha Zhao and Jing Yao and Feng Gao and Wei Feng},
title = {MOF-derived ZnO nanocages with enhanced UV absorption and photocarrier dynamics for high-performance underwater photodetection and optical imaging},
year = {2025},
journal = {Nano Research},
volume = {18},
number = {6},
pages = {94907403},
keywords = {self-powered, photoelectrochemical, ZnO nanocages, underwater optical imaging, ultraviolet (UV) photodetectors},
url = {https://www.sciopen.com/article/10.26599/NR.2025.94907403},
doi = {10.26599/NR.2025.94907403},
abstract = {Self-powered photoelectrochemical (PEC) photodetectors hold great promise for underwater optical applications, yet suffer from sluggish carrier dynamics and limited stability. Herein, high-performance, self-powered, and stable PEC ultraviolet (UV) photodetectors were fabricated using metal-organic-framework derived ZnO nanocages (NCs). These topography-engineered ZnO NCs synchronously enhance UV absorption, facilitate photogeneration carrier separation, and promote charge transfer at the ZnO/electrolyte interface, thus optimizing the overall photoresponse performance. The ZnO NCs-based PEC device achieves an ultrahigh responsivity of 300.6 mA/W under 365 nm UV light irradiation, a fast response time of 10/20 ms, outstanding spectra selectivity (UV/visible rejection ratio of 2000), and excellent cycling stability (10,000 cycles), which is one of the best reported PEC UV photodetectors. Furthermore, the self-powered ZnO-based PEC PDs have good underwater optical imaging capability. This work provides a new idea for designing high-performance UV photodetectors for application in underwater environments.}
}