2D Black Phosphorus/SrTiO3-Based Programmable Photoconductive Switch

• Main Authors: Liu, Fucai, Zhu, Chao, You, Lu, Liang, Shi-Jun, Zheng, Shoujun, Zhou, Jiadong, Fu, Qundong, He, Yongmin, Zeng, Qingsheng, Fan, Hong Jin, Ang, Lay Kee, Wang, Junling, Liu, Zheng
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2017
• Subjects: 2D materials; Black phosphorus
• Online Access: https://hdl.handle.net/10356/84716; http://hdl.handle.net/10220/41972
• Institution: Nanyang Technological University

A novel heterostructure is designed by stacking 2D black phosphorus (BP) on a SrTiO3 substrate. The device demonstrates programmable photoconductive switching under illumination of UV and red light. The light-tunable persistent photoconductivity exhibits a large on/off ratio exceeding 105. The persi...