Multiple peak intersubband absorption in a biased superlattice

2002 ◽  
Vol 66 (7) ◽  
Author(s):  
A. V. Korovin ◽  
O. E. Raichev ◽  
F. T. Vasko
Keyword(s):  
Multiple Peak ◽  
Intersubband Absorption

SUPERLATTICE TUNNELING DETECTORS OPERATING AT λ = 10 µm, BASED ON QUANTUM WELL INTERSUBBAND ABSORPTION

1987 ◽  
Vol 48 (C5) ◽  
pp. C5-611-C5-614
Author(s):  
B. F. LEVINE ◽  
K. K. CHOI ◽  
C. G. BETHEA ◽  
J. WALKER ◽  
R. J. MALIK
Keyword(s):  
Quantum Well ◽  
Intersubband Absorption

scholarly journals Selective Doping of Quantum Dot Nanomaterials for Managing Intersubband Absorption, Dark Current, and Photoelectron Lifetime

MRS Advances ◽  
2017 ◽  
Vol 2 (14) ◽  
pp. 759-766 ◽  
Author(s):  
Kimberly Sablon ◽  
Andrei Sergeev ◽  
Xiang Zhang ◽  
Vladimir Mitin ◽  
Michael Yakimov ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Dark Current ◽  
Spectral Characteristics ◽  
Nonradiative Recombination ◽  
Photovoltaic Devices ◽  
Electron Population ◽  
Selective Doping ◽  
Intersubband Absorption ◽  
Novel Approach ◽  
N Doping

ABSTRACTNovel approach to optimize quantum dot (QD) materials for specific optoelectronic applications is based on engineering of nanoscale potential profile, which is created by charged QDs. The nanoscale barriers prevent capture of photocarriers and drastically increase the photoelectron lifetime, which in turn strongly improves the photoconductive gain, responsivity, and sensitivity of photodetectors and decreases the nonradiative recombination losses of photovoltaic devices. QD charging may be created by various types of selective doping. To investigate effects of selective doping, we model, fabricated, and characterized AlGaAs/InAs QD structures with n-doping of QD layers, doping of interdot layers, and bipolar doping, which combines p-doping of QD layers with strong n-doping of the interdot space. We have measured spectral characteristics of photoresponse, photocurrent and dark current. The experimental data show that providing the same electron population of QDs, the bipolar doping creates the most contrasting nanoscale profile with the highest barriers around dots.

Optically stimulated intersubband absorption in undoped amorphousSi/SiO2 qiantum well

1994 ◽  
Vol 4 (6) ◽  
pp. 417-421
Author(s):  
Ole Keller ◽  
Anatoly Zayats ◽  
E. A. Vinogradov
Keyword(s):  
Intersubband Absorption

scholarly journals Spin relaxation times of two-dimensional holes from spin sensitive bleaching of intersubband absorption

2004 ◽  
Vol 96 (1) ◽  
pp. 420-424 ◽  
Author(s):  
Petra Schneider ◽  
J. Kainz ◽  
S. D. Ganichev ◽  
S. N. Danilov ◽  
U. Rössler ◽  
...  
Keyword(s):  
Spin Relaxation ◽  
Relaxation Times ◽  
Two Dimensional ◽  
Intersubband Absorption

Multiple peak formation in reversed-phase liquid chromatography of papain

1984 ◽  
Vol 56 (2) ◽  
pp. 217-221 ◽  
Author(s):  
S. A. Cohen ◽  
K. P. Benedek ◽  
Shannian. Dong ◽  
Yitzhak. Tapuhi ◽  
B. L. Karger
Keyword(s):  
Liquid Chromatography ◽  
Reversed Phase ◽  
Reversed Phase Liquid Chromatography ◽  
Multiple Peak ◽  
Phase Liquid
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