In Situ Conformal Coating of Polyaniline on GaN Microwires for Ultrafast, Self-Driven Heterojunction Ultraviolet Photodetectors
Yiming Sun, Weidong Song, Fangliang Gao, Xingfu Wang, Xingjun Luo, Jiaqi Guo, Bolin Zhang, Jiang Shi, Chuan Cheng, Qing Liu, Shuti Li
Abstract
jones, and an ultrafast UV photoresponse speed (rise time of 0.2 ms and fall time of 0.3 ms) under zero bias. The intimate heterojunction in the form of N-Ga-N bonds between GaN and PANI may account for the observed high performances. The presented self-driven microwire UV PDs featuring ultrahigh-speed (sub-millisecond) response to UV light may find applications in future nano/micro-photosensor networks.
Topics & Concepts
Materials scienceHeterojunctionPhotodetectorUltravioletPolyanilineOptoelectronicsUltrashort pulseConformal coatingCoatingIn situNanotechnologyOpticsComposite materialLaserPolymerPhysicsMeteorologyPolymerizationGaN-based semiconductor devices and materialsAdvanced Sensor and Energy Harvesting MaterialsNanowire Synthesis and Applications