Black Arsenic-Phosphorus: Layered Anisotropic Infrared Semiconductors with Highly Tunable Compositions and Properties.

Liu, Bilu; Köpf, Marianne; Abbas, Ahmad N; Wang, Xiaomu; Guo, Qiushi; Jia, Yichen; Xia, Fengnian; Weihrich, Richard et al. · Adv Mater · 2015

basic_science · Level V

Where this comes from

Abstract

New layered anisotropic infrared semiconductors, black arsenic-phosphorus (b-AsP), with highly tunable chemical compositions and electronic and optical properties are introduced. Transport and infrared absorption studies demonstrate the semiconducting nature of b-AsP with tunable bandgaps, ranging from 0.3 to 0.15 eV. These bandgaps fall into the long-wavelength infrared regime and cannot be readily reached by other layered materials.