A Power-Free Mid-Infrared Photodetector with Tunable Selectivity

1 School of Electronic Science and Engineering, National Exemplary School of Microelectronics, University of Electronic Science and Technology of China, Chengdu 610054, China 2 School of Electronic Information and Electrical Engineering, Chengdu University, Chengdu 610106, China 3 School of Integrated Circuits, Tsinghua University, Beijing 100084, China 4 Department of Physics, Beijing Normal University, Beijing 100875, China 5 Institute of Physics, Chinese Academy of Science, Beijing National Laboratory of Condensed Matter Physics, Beijing 100190, China