Temperature-dependent polarization characteristics in Al0.25Ga0.75N/AlN/GaN heterostructure

2016 ◽  
Vol 108 (6) ◽  
pp. 063503 ◽  
Author(s):  
Yong Xiang ◽  
Xinjuan Chen ◽  
Cheng Ji ◽  
Xuelin Yang ◽  
Fujun Xu ◽  
...  
Keyword(s):  
Temperature Dependent ◽  
Dependent Polarization ◽  
Polarization Characteristics ◽  
Gan Heterostructure

Pyroelectric Molecular Baskets: Temperature-Dependent Polarization from Substituted Calix(8)arene Langmuir-Blodgett Films

Langmuir ◽  
1995 ◽  
Vol 11 (12) ◽  
pp. 4623-4625 ◽  
Author(s):  
Tim Richardson ◽  
Michael B. Greenwood ◽  
Frank Davis ◽  
Charles J. M. Stirling
Keyword(s):  
Temperature Dependent ◽  
Langmuir Blodgett ◽  
Molecular Baskets ◽  
Langmuir Blodgett Films ◽  
Dependent Polarization

Temperature Dependence of Photoresponse in p-Type GaAs/AlGaAs Multiple Quantum Wells: Theory and Experiment

1999 ◽  
Vol 607 ◽  
Author(s):  
F. Szmulowicz ◽  
A. Shen ◽  
H. C. Liu ◽  
G. J. Brown ◽  
Z. R. Wasilewski ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Temperature Dependence ◽  
Bound States ◽  
Light Hole ◽  
Multiple Quantum ◽  
Temperature Dependent ◽  
Long Wavelength ◽  
Hole Level ◽  
Polarization Characteristics ◽  
P Type

AbstractThis paper describes a study of the photoresponse of long-wavelength (LWIR) and mid-infrared (MWIR) p-type GaAs/AlGaAs quantum well infrared photodetectors (QWIPs) as a function of temperature and QWIP parameters. Using an 8x8 envelope-function model (EFA), we designed and calculated the optical absorption of several bound-to-continuum (BC) structures, with the optimum designs corresponding to the second light hole level (LH2) coincident with the top of the well. For the temperature-dependent study, one non-optimized LWIR and one optimized MWIR samples were grown by MBE and their photoresponse and absorption characteristics measured to test the theory. The theory shows that the placement of the LH2 resonance at the top of the well for the optimized sample and the presence of light-hole-like quasi-bound states within the heavy-hole continuum for the nonoptimized sample account for their markedly different thermal and polarization characteristics. In particular, the theory predicts that, for the LWIR sample, the LH-like quasi-bound states should lead to an increased Ppolarized photoresponse as a function of temperature. Our temperature dependent photoresponse measurements corroborate most of the theoretical findings with respect to the long-wavelength threshold, shape, and polarization and temperature dependence of the spectra.

Effect of trapped charge in AlGaN/GaN and AlGaN/InGaN/GaN heterostructure by temperature dependent threshold voltage analysis

2018 ◽  
Vol 113 ◽  
pp. 147-152 ◽  
Author(s):  
Apurba Chakraborty ◽  
Saptarsi Ghosh ◽  
Partha Mukhopadhyay ◽  
Subhashis Das ◽  
Ankush Bag ◽  
...  
Keyword(s):  
Threshold Voltage ◽  
Temperature Dependent ◽  
Gan Heterostructure ◽  
Trapped Charge

The variation of temperature-dependent carrier concentration and mobility in AlGaN/AlN/GaN heterostructure with SiN passivation

2015 ◽  
Vol 252 (9) ◽  
pp. 1960-1965 ◽  
Author(s):  
S. Ardali ◽  
G. Atmaca ◽  
S. B. Lisesivdin ◽  
T. Malin ◽  
V. Mansurov ◽  
...  
Keyword(s):  
Carrier Concentration ◽  
Temperature Dependent ◽  
Gan Heterostructure

Temperature dependent polarization switching properties of ferroelectric Pb0.92La0.08Zr0.52Ti0.48Oδ films grown on nickel foils

2013 ◽  
Vol 102 (7) ◽  
pp. 072901 ◽  
Author(s):  
Beihai Ma ◽  
Zhongqiang Hu ◽  
Shanshan Liu ◽  
Manoj Narayanan ◽  
U. (Balu) Balachandran
Keyword(s):  
Polarization Switching ◽  
Temperature Dependent ◽  
Dependent Polarization

Temperature-dependent polarization in LB films of a stilbazole complex of iridium(I)†

1994 ◽  
Vol 77 (6) ◽  
pp. 951-956 ◽  
Author(s):  
A. TOPACLI ◽  
T. RICHARDSON ◽  
W. H. ABD MAJID ◽  
A. THORNTON ◽  
D. W. BRUCE ◽  
...  
Keyword(s):  
Temperature Dependent ◽  
Lb Films ◽  
Dependent Polarization
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