Schottky diode on Si/Si 1-x-y Ge x C y /Si quantum well heterostructures for long wavelength IR detector

2001 ◽  
Author(s):  
G. S. Kar ◽  
S. Maikap ◽  
A. Dhar ◽  
Samit K. Ray
Keyword(s):  
Quantum Well ◽  
Schottky Diode ◽  
Ir Detector ◽  
Long Wavelength

Thermally activated current–voltage asymmetry in quantum-well inter-subband photodetectors

1996 ◽  
Vol 74 (S1) ◽  
pp. 9-15 ◽  
Author(s):  
P. V. Kolev ◽  
M. J. Deen ◽  
H. C. Liu ◽  
Jianmeng Li ◽  
M. Buchanan ◽  
...  
Keyword(s):  
Quantum Well ◽  
Carrier Transport ◽  
Transport Phenomena ◽  
Infrared Region ◽  
Avalanche Photodetectors ◽  
Long Wavelength ◽  
Hot Carrier ◽  
Thermally Activated ◽  
Current Voltage ◽  
Long Wavelength Infrared

Continuing research interest in quantum-well inter-subband-based devices can be associated with its prospects for numerous optoelectronic applications in the long wavelength infrared region. This paper presents experimentally measured field dependence of the thermally activated effective-barrier lowering in quantum-well inter-subband photodetectors (QWIPs). This barrier lowering is considered to be the main cause of the commonly observed asymmetry in the current–voltage characteristics of QWIPs. The research results presented here are important for understanding the factors determining the dark-current mechanisms that are crucial for further improvement in the characteristics of these devices. The study of current-carrier transport phenomena in a quantum well is also of interest for developing quantum-well lasers and avalanche photodetectors based on intraband processes, and also transistors based on ballistic or hot carrier transport phenomena.

scholarly journals Photocurrent spectra of very long wavelength GaAs/AlGaAs quantum well infrared photodetector

2003 ◽  
Vol 52 (2) ◽  
pp. 503
Author(s):  
Yuan Xian-Zhang ◽  
Lu Wei ◽  
Li Ning ◽  
Chen Xiao-Shuang ◽  
Shen Xue-Chu ◽  
...  
Keyword(s):  
Quantum Well ◽  
Infrared Photodetector ◽  
Long Wavelength ◽  
Quantum Well Infrared Photodetector ◽  
Photocurrent Spectra
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