Bias-selectable tricolor tunneling quantum dot infrared photodetector for atmospheric windows
- 17 March 2008
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 92 (11), 111104
- https://doi.org/10.1063/1.2898521
Abstract
A tricolor infrared detector with bias-selectable peaks based on tunneling quantum dot infrared photodetector (T-QDIP) architecture is demonstrated. Photoabsorption takes place in quantum dots (QDs) and the excited electrons are collected by resonant tunneling across an double barrier coupled to the QDs. The field dependent tunneling for excited carriers in T-QDIP is used to select the operating wavelength. This T-QDIP detector exhibits three distinct response peaks at , , and up to . The peak detectivity is in the range of at . Bias polarity allows the selection of either the or the peak.
Keywords
This publication has 17 references indexed in Scilit:
- High operating temperature 320×256 middle-wavelength infrared focal plane array imaging based on an InAs∕InGaAs∕InAlAs∕InP quantum dot infrared photodetectorApplied Physics Letters, 2007
- Advanced space-based detector research at the Air Force Research LaboratoryInfrared Physics & Technology, 2007
- Excited states of ring-shaped (InGa)As quantum dots in aquantum wellPhysical Review B, 2005
- Characteristics of a tunneling quantum-dot infrared photodetector operating at room temperatureApplied Physics Letters, 2005
- Three-color (λp1∼3.8 μm, λp2∼8.5 μm, and λp3∼23.2 μm) InAs/InGaAs quantum-dots-in-a-well detectorApplied Physics Letters, 2003
- Absorption, carrier lifetime, and gain in inas~gaas quantum-dot infrared photodetectorsIEEE Journal of Quantum Electronics, 2003
- Fabrication of p-pentacene/n-Si organic photodiodes and characterization of their photoelectric propertiesApplied Physics Letters, 2003
- Strain distribution and electronic spectra of InAs/GaAs self-assembled dots: An eight-band studyPhysical Review B, 1997
- Quasi-bound states determination using a perturbed wavenumbers method in a large quantum boxIEEE Journal of Quantum Electronics, 1997
- Photoexcited Coherent Tunneling in a Double-Barrier SuperlatticePhysical Review Letters, 1987