Applied Physics Letters · 1998 · 166 citations · 12 references
EngineeringElectrical EngineeringMaterials ScienceOptoelectronicsSemiconductor DevicesSemiconductor MaterialsInfrared DetectorsOptical DetectorsOptoelectronic DevicesOptoelectronic MaterialsPhotodetectorsQuantum DotsElectro-optic CoefficientsPhotodetector MaterialsQuantum Dot DevicesQuantum Dot MaterialsQuantum Dot PhotodetectorsSelf-assembled Quantum Dots
A quantum dot infrared photodetector (QDIP) consisting of self-assembled InGaAs quantum dots has been demonstrated. Responsivity of 3.25 mA/W at 9.2 μm was obtained for nonpolarized incident light on the detector with a 45° angle facet at 60 K. The QDIPs exhibit some unique electro-optic characteristics such as a strong negative differential photoconductance effect and blueshift of the response peak wavelength.
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Quantum-well infrared photodetectors
B. F. Levine · Journal of Applied Physics · 1993 · 1.7K citations
Spectroscopy of Quantum Levels in Charge-Tunable InGaAs Quantum Dots
Hedda Drexler, D. Leonard, W. Hansen et al. · Physical Review Letters · 1994 · 731 citations