Band-selective infrared photodetectors with complete-composition-range InAs(x)P(1-x) alloy nanowires.

Ren, Pinyun; Hu, Wei; Zhang, Qinglin; Zhu, Xiaoli; Zhuang, Xiujuan; Ma, Liang; Fan, Xiaopeng; Zhou, Hong et al. · Adv Mater · 2014

basic_science · Level V

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Abstract

Band-selective infrared photodetectors (PDs) are constructed with InAs(x)P(1-x) alloy nanowires from the complete composition range (0 ≤ x ≤ 1) achieved by a new growth route combining the vapor-liquid-solid mechanism with an additional ion-exchange process. Increasing the composition x value from 0 to 1 in the PDs allows the peak response wavelength to be gradually tuned from ca. 900 to ca. 2900 nm.