Phonon-generated microfields and the high-temperature shift of the absorption edge in cubic ZnS

1975 ◽  
Vol 12 (8) ◽  
pp. 3494-3496 ◽  
Author(s):  
Y. Brada ◽  
B. G. Yacobi ◽  
A. Peled
Keyword(s):  
High Temperature ◽  
Absorption Edge ◽  
Temperature Shift

High Temperature Annealing Behaviors of Luminescent Siox:H Films

1999 ◽  
Vol 560 ◽  
Author(s):  
Zhixun Ma ◽  
Xianbi Xiang ◽  
Shuran Sheng ◽  
Xianbo Liao ◽  
Chunlin Shao ◽  
...  
Keyword(s):  
High Temperature ◽  
Absorption Edge ◽  
Optical Transition ◽  
Stokes Shift ◽  
Transition Process ◽  
Ir Absorption ◽  
High Temperature Annealing ◽  
Force Microscopy ◽  
Atomic Force ◽  
Si Nanocrystals

ABSTRACTThe effects of high temperature annealing on the microstructure and optical properties of luminescent SiOx:H films have been investigated. Micro-Raman scattering and IR absorption, in combination with atomic force microscopy (AFM), provide evidence for the existence of both a-Si clusters in the as-grown a-SiOx:H and Si nanocrystals in the 1170°C annealed films. The dependence of optical coefficients (μ) on photon energy (hv) near the absorption edge (Eg) is found to follow the square root law: (μhv)½ μ (Eg – hv), indicating that nano-Si embedded in Si02 is still an indirect material. A comparison of the deduced absorption edge with the PL spectra shows an obvious Stokes shift, suggesting that phonons should be involved in the optical transition process.

Temperature shift of the absorption edge in mixed single crystals ofZnxCd1−xSe

1987 ◽  
Vol 36 (2) ◽  
pp. 1174-1177 ◽  
Author(s):  
L. Samuel ◽  
Y. Brada ◽  
A. Burger ◽  
M. Roth
Keyword(s):  
Single Crystals ◽  
Absorption Edge ◽  
Temperature Shift

Temperature shift of the absorption edge and Urbach tail ofZrSxSe2−xsingle crystals

2017 ◽  
Vol 95 (24) ◽  
Author(s):  
Mohamed Moustafa ◽  
Anke Wasnick ◽  
Christoph Janowitz ◽  
Recardo Manzke
Keyword(s):  
Absorption Edge ◽  
Temperature Shift ◽  
Urbach Tail

scholarly journals In situstudies of model high-temperature shift catalysts

2005 ◽  
Vol 61 (a1) ◽  
pp. c489-c489
Author(s):  
A. M. Molenbroek ◽  
R. E. Johnsen ◽  
K. Ståhl
Keyword(s):  
High Temperature ◽  
Temperature Shift

D-50 in Situ Characterization of High-Temperature Shift Catalysts

2007 ◽  
Vol 22 (2) ◽  
pp. 190-190
Author(s):  
A. M. Molenbroek ◽  
R. E. Johnsen ◽  
K. Sta˚hl
Keyword(s):  
High Temperature ◽  
Temperature Shift ◽  
In Situ Characterization

scholarly journals Chromium and Copper-Doped Magnetite Catalysts for the High Temperature Shift Reaction

1999 ◽  
Vol 10 (1) ◽  
pp. 51-59 ◽  
Author(s):  
Emerentino Brazil Quadro ◽  
Maria de Lourdes Ribeiro Dias ◽  
Adelaide Maria Mendonça Amorim ◽  
Maria do Carmo Rangel
Keyword(s):  
High Temperature ◽  
Temperature Shift ◽  
Shift Reaction

High temperature optical absorption edge of CdTe single crystal

2014 ◽  
Vol 116 (10) ◽  
pp. 103521 ◽  
Author(s):  
E. Belas ◽  
Š. Uxa ◽  
R. Grill ◽  
P. Hlídek ◽  
L. Šedivý ◽  
...  
Keyword(s):  
High Temperature ◽  
Optical Absorption ◽  
Single Crystal ◽  
Absorption Edge ◽  
Optical Absorption Edge ◽  
Cdte Single Crystal
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