Electronic structure and optical properties of poly[3-(4-octylphenoxy)thiophene]: Experimental and theoretical studies

2008 ◽  
Vol 46 (22) ◽  
pp. 7505-7516 ◽  
Author(s):  
Farid Ouhib ◽  
Ahmed Dkhissi ◽  
Pierre Iratçabal ◽  
Roger C. Hiorns ◽  
Abdel Khoukh ◽  
...  
Keyword(s):  
Optical Properties ◽  
Electronic Structure ◽  
Theoretical Studies ◽  
Experimental And Theoretical Studies

Intrinsic Defects in GaAs - the Case of El2

1987 ◽  
Vol 104 ◽  
Author(s):  
H. J. Von Bardeleben ◽  
D. Stievemard
Keyword(s):  
Electronic Structure ◽  
Stable Configuration ◽  
Theoretical Studies ◽  
Absorption Bands ◽  
Teller Distortion ◽  
Jahn Teller ◽  
The Stability ◽  
Additional Support ◽  
Jahn Teller Distortion ◽  
Experimental And Theoretical Studies

ABSTRACTThe arsenic antisite-arsenic interstitial pair model for the stable configuration of the EL2 defect in GaAs has stimulated new experimental and theoretical studies, the results of which lead to additional support for this model. Recent theoretical studies, taking into account the effect of a Jahn Teller distortion of the T2 Asi levels have given an insight into the stability and the electronic structure of the defect pair. Further, ODENDOR studies have directly confirmed this model and allowed one to specify the lattice location and the charge state of the Asi ion. The pair structure of this defect implies a reconsideration of the charge states of the EL2 defect, as well as the origin of the optical absorption bands for which transitions on the Asi ion and intracenter bands have also to be considered. The model leads further to a description of the metastable configuration : an arsenic molecule at the gallium vacancy site, the electronic structure of which is calculated. The vacancy related defects, known from electron irradiation studies, are not detected in LEC grown GaAs as native defects.

Crystal growth, experimental and theoretical studies on the electronic structure of CNGS and Nd:CNGS

CrystEngComm ◽  
2016 ◽  
Vol 18 (19) ◽  
pp. 3481-3487 ◽  
Author(s):  
Junyu Ren ◽  
Xuzhao Zhang ◽  
Xiaotong Zhang ◽  
Rui Cheng ◽  
Jiayi Guo ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Crystal Growth ◽  
Theoretical Studies ◽  
Experimental And Theoretical Studies

Experimental and theoretical studies on the linear and nonlinear optical properties of lead phosphate crystals LiPbPO4

2016 ◽  
Vol 18 (28) ◽  
pp. 19123-19129 ◽  
Author(s):  
Guopeng Han ◽  
Qiong Liu ◽  
Ying Wang ◽  
Xin Su ◽  
Zhihua Yang ◽  
...  
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Theoretical Studies ◽  
Lead Phosphate ◽  
Linear And Nonlinear ◽  
Experimental And Theoretical Studies

LiPbPO4achieved a desired balance between UV transparency (232 nm) and high nonlinear optical (NLO) activity (about 3 × KDP).

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