ZnO ultraviolet photodetector based on flexible polyester fibre substrates by low‐temperature hydrothermal approach

The development of flexible photodetectors is believed to have great potential for future optoelectronic applications, such as biomedical imaging and smart wearable systems. Here the work proposes a simple and low‐cost approach for integrating a flexible and wearable ZnO ultraviolet (UV) photodetector using polyester fabric as the platform for the first time. The ZnO nanowires coated polyester fabric was prepared by a low‐temperature hydrothermal approach. They measured the performance of the photodetector in terms of I–V characteristics and time‐resolved photocurrent. The results showed that the as‐fabricated ZnO UV photodetector presented great reliability. Additionally, the working mechanism of the device was also discussed.