Calculated temperature dependence of the band gap of HgTe‐CdTe superlattices

1985 ◽  
Vol 57 (4) ◽  
pp. 1403-1405 ◽  
Author(s):  
Y. Guldner ◽  
G. Bastard ◽  
M. Voos
1974 ◽  
Vol 52 (19) ◽  
pp. 1862-1871
Author(s):  
J. David Brown ◽  
George Burns

The temperature dependence of emission from iodine, heated in a shock wave to 1000 K–2000 K, has been measured at 4550, 5550, 6950, 7550, and 7820 Å. Preliminary measurements of the emission at 6380 Å were also made. The temperature dependence of the emission was calculated at these wavelengths for transitions to the ground electronic state X(1Σg+) of iodine from the excited electronic states, A(3Π1u), (1Π1u), and [Formula: see text]. The calculated results are in a reasonable agreement with experimental data. For the banded emission due to the B → X transition, a theory of the temperature dependence of emission was developed. At 6950, 7550, and 7820 Å, the results of this theory agree with the experimental data thus identifying the B → X transition as the source of emission at these wavelengths. The temperature dependence of emission at 4550 Å is consistent with calculated temperature dependence for either (1Π1u) → X or [Formula: see text] transitions. The temperature dependence of the emission at 5550 Å is consistent with calculated temperature dependence for the above two transitions, as well as for the A(3Π1u) → X transition.


1968 ◽  
Vol 46 (2) ◽  
pp. 307-310 ◽  
Author(s):  
P. G. Bowers

The dissociation of hexafluoroacetone from high vibrational levels of its first excited singlet state is treated by the methods of RRKM unimolecular theory. Predictions of the relative photodissociation rates for various exciting wavelengths are in reasonable accord with the observed rates and indicate a critical predissociation energy of about 6 kcal/mole. The calculated temperature dependence is less satisfactory and somewhat lower than the experimental variation.


2017 ◽  
Vol 50 (40) ◽  
pp. 40LT02 ◽  
Author(s):  
Peiji Geng ◽  
Weiguo Li ◽  
Xianhe Zhang ◽  
Xuyao Zhang ◽  
Yong Deng ◽  
...  

Author(s):  
И.В. Боднарь ◽  
Б.Т. Чан ◽  
В.Н. Павловский ◽  
И.Е. Свитенков ◽  
Г.П. Яблонский

AbstractMnAgIn_7S_12 single crystals 16 mm in diameter and ~40 mm in length are grown by planar crystallization of the melt. It is shown that the material grown crystallizes with the formation of the cubic spinel structure. From the transmittance spectra recorded in the region of fundamental absorption in the temperature range 10–320 K, the band gap E _ g of the single crystals and its temperature dependence are determined. The dependence has a shape typical of most semiconductor materials: as the temperature is lowered, the band gap E _ g increases. A calculation is carried out, and it is shown that the calculated values are in agreement with the experimental data.


2002 ◽  
Vol 81 (21) ◽  
pp. 3984-3986 ◽  
Author(s):  
G. Yu. Rudko ◽  
I. A. Buyanova ◽  
W. M. Chen ◽  
H. P. Xin ◽  
C. W. Tu

2008 ◽  
Vol 17 (6) ◽  
pp. 2245-2250 ◽  
Author(s):  
Xu Hong-Yan ◽  
Jian Ao-Qun ◽  
Xue Chen-Yang ◽  
Chen Yang ◽  
Zhang Bin-Zhen ◽  
...  

1996 ◽  
Vol 79 (10) ◽  
pp. 7713-7717 ◽  
Author(s):  
F. G. Sánchez‐Almazan ◽  
H. Navarro‐Contreras ◽  
G. Ramírez‐Flores ◽  
M. A. Vidal ◽  
O. Zelaya‐Angel ◽  
...  

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