Strong bulk photovoltaic effect and second-harmonic generation in two-dimensional selenium and tellurium

Abstract

Meijuan Cheng, Zi-Zhong Zhu, 2, ∗ and Guang-Yu Guo 4, † Department of Physics, Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices, Key Laboratory of Low Dimensional Condensed Matter Physics (Department of Education of Fujian Province), Jiujiang Research Institute, Xiamen University, Xiamen 361005, China Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, Xiamen 361005, China Department of Physics and Center for Theoretical Physics, National Taiwan University, Taipei 10617, Taiwan Physics Division, National Center for Theoretical Sciences, Taipei 10617, Taiwan (Dated: June 21, 2021)