Voltage-Tunable Mid- and Long-Wavelength Dual-Band Infrared Photodetector Based on Hybrid Self-Assembled and Sub-Monolayer Quantum Dots
Abstract
In this paper, we report a mid-wave infrared (MWIR) and long-wave infrared (LWIR) dual-band photodetector capable of voltage-controllable detection band selection. The voltage-tunable dual-band photodetector is based on the multiple stacks of sub-monolayer (SML) quantum dots (QDs) and self-assembled QDs. By changing the photodetector bias voltages, one can set the detection band to be MWIR, or LWIR or both with high photodetectivity and low crosstalk between the bands.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Dec 22, 2018
- Source ID
- 10.3390/mi10010004
Entities
People
- Guiru Gu
- Xuejun Lu
- Yao Zhai
Organizations
- Air Force Office of Scientific Research