Title :
Performance of terahertz quantum-well photodetectors
Author :
Jingyue Jia;Yueheng Zhang
Author_Institution :
Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
Abstract :
We investigated the performance of terahertz quantum-well photodetectors (THz QWPs) experimentally and theoretically. The photocurrent spectra of both THz QWPs are measured and simulated considering the many-particle effects. The dark current mechanisms are also investigated experimentally and theoretically. Results show that many-particle effects must be considered in the design of the THz QWPs. Also, the scattering assisted tunneling dark current should also be noted to play a very important role in the total dark current of THz QWPs.
Keywords :
"Dark current","Quantum wells","Photodetectors","Scattering","Tunneling","Yttrium","Current measurement"
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2015 40th International Conference on
Electronic_ISBN :
2162-2035
DOI :
10.1109/IRMMW-THz.2015.7327787
