光探测
响应度
材料科学
光电探测器
光电子学
纳米线
欧姆接触
极化(电化学)
各向异性
光子学
亚氧化物
硫系化合物
光学
凝聚态物理
纳米技术
化学
物理
硅
物理化学
图层(电子)
作者
B L Zhang,Zhikang Ao,Fen Zhang,Jiang Zhong,Shunhui Zhang,Hang Liu,Yinghao Chen,Jianing Xie,Wenkui Wen,Guang Wang,Peng Chen,Yang Xiang-Dong,Jinhui Cao,Mianzeng Zhong,Hongjian Li,Zhengwei Zhang
摘要
Low-dimensional nanostructures, especially one-dimensional materials, exhibit remarkable anisotropic characteristics due to their low symmetry, making them promising candidates for polarization-sensitive photodetection. Here, we present a chemical vapor deposition synthesis method for tellurium suboxide (TeOx), confirming the practicality of photodetectors constructed from TeOx nanowires (NWs) in high-responsivity, broadband, and polarization-sensitive detection. By precisely controlling the thermodynamics and kinetics of TeOx NWs growth, we achieve large-scale growth of TeOx NWs with highly controllable dimensions and propose a method to induce intrinsic built-in strain in TeOx NWs. Photodetectors based on quasi-one-dimensional TeOx NWs with ohmic contact demonstrate broadband spectral response (638–1550 nm), high responsivity (13 700 mA·W−1), and superior air stability. Particularly, owing to the inherent structural anisotropy of the photodetectors, they exhibit polarization-sensitive photodetection, with anisotropy ratios of 1.70 and 1.71 at 638 and 808 nm, respectively.
科研通智能强力驱动
Strongly Powered by AbleSci AI