Semiconductor alloy nanoribbon lateral heterostructures for high-performance photodetectors.

Guo, Pengfei; Hu, Wei; Zhang, Qinglin; Zhuang, Xiujuan; Zhu, Xiaoli; Zhou, Hong; Shan, Zhengping; Xu, Jinyou et al. · Adv Mater · 2014

basic_science · Level V

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Abstract

High-performance visible-light photodetectors are achieved based on single nanoribbon lateral heterostructures composed of two different semiconductor alloys epitaxially grown in the lateral direction. They reveal superior spectral response range, responsivity, Ion/Ioff ratio, and external quantum efficiency, relative to devices based on single composition structures.