Intrinsic carrier concentration of narrow‐gap mercury cadmium telluride based on the nonlinear temperature dependence of the band gap

1992 ◽  
Vol 71 (3) ◽  
pp. 1253-1258 ◽  
Author(s):  
J. R. Lowney ◽  
D. G. Seiler ◽  
C. L. Littler ◽  
I. T. Yoon
Keyword(s):  
Temperature Dependence ◽  
Band Gap ◽  
Carrier Concentration ◽  
Cadmium Telluride ◽  
Mercury Cadmium Telluride ◽  
Narrow Gap ◽  
Intrinsic Carrier Concentration ◽  
Nonlinear Temperature Dependence ◽  
Nonlinear Temperature

scholarly journals Nonlinear Temperature Dependence of the Band Gap in Hg1-x-yCdxMnyTe and Hg1-xCdxTe Alloys

1991 ◽  
Vol 79 (2-3) ◽  
pp. 291-294 ◽  
Author(s):  
E. Dudziak ◽  
L.Z. Jędral ◽  
J. Bożym ◽  
J. Brzeziński
Keyword(s):  
Temperature Dependence ◽  
Band Gap ◽  
Nonlinear Temperature Dependence ◽  
Nonlinear Temperature

Intrinsic Carrier Concentrations in Long Wavelength HgCdTe Based on the New, Nonlinear Temperature Dependence of Eg(x,T)

1990 ◽  
Vol 216 ◽  
Author(s):  
D. G. Seiler ◽  
J. R. Lowney ◽  
C. L. Littler ◽  
I. T. Yoon
Keyword(s):  
Temperature Dependence ◽  
Energy Gap ◽  
Narrow Gap ◽  
Proper Understanding ◽  
Long Wavelength ◽  
Nonlinear Temperature Dependence ◽  
Nonlinear Temperature ◽  
Experimental Values ◽  
Device Operation ◽  
Absorption Measurements

ABSTRACTIntrinsic carrier concentrations of narrow-gap Hg1-xCdxTe alloys (0.17≦ x ≦0.30) have been calculated as a function of temperature between 0 and 300 K by using the new nonlinear temperature dependence of the energy gap obtained previously by twophoton magneto-absorption measurements for samples with 0.24≦ x ≦0.26. We report here experimental values for Eg(x,T) for samples with x = 0.20 and 0.23 obtained by one-photon magneto-absorption measurements. These data confirm the validity of the new Eg(x,T) relationship for these : values. In this range of composition and temperature, the energy gap of mercury cadmium telluride is small, and very accurate values are needed for the gap to obtain reliable values for the intrinsic carrier density. Large percentage differences exist between our new calculations and previous values for ni at low temperatures. Even at 77 K, differences approaching 10 percent exist, confirming the importance of using the new ni results for materials and device characterization and a proper understanding of device operation in long-wavelength materials.

Nonlinear Temperature Dependence of Etched Fiber Bragg Gratings

2007 ◽  
Vol 7 (9) ◽  
pp. 1358-1359 ◽  
Author(s):  
Ricardo C. Kamikawachi ◽  
Ilda Abe ◽  
Hypolito J. Kalinowski ◽  
JosÉ L. Fabris ◽  
JoÃo L. Pinto
Keyword(s):  
Temperature Dependence ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Nonlinear Temperature Dependence ◽  
Nonlinear Temperature

On the time delay of the photoplastic effect

1986 ◽  
Vol 1 (1) ◽  
pp. 3-6 ◽  
Author(s):  
Joseph Pellegrino ◽  
J. M. Galligan
Keyword(s):  
Time Delay ◽  
Temperature Dependence ◽  
Cadmium Telluride ◽  
Deformation Temperature ◽  
Mercury Cadmium Telluride ◽  
Charge Carriers ◽  
Temperature Dependent ◽  
Simple Analysis ◽  
Photoplastic Effect

Photoplasticity in mercury cadmium telluride, Hg1-x Cdx Te with x = 0.3, has been studied as a function of light frequency and deformation temperature. We show that there is an easily measurable time delay accompanying irradiation of the crystal and the change in stress. This time delay is temperature dependent, suggesting a diffusion of charge carriers, introduced by the light, to the interior of the crystal. A simple analysis is given of the observed temperature dependence that is consistent with the experiments.

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