Optical Properties and Electronic States in Anisotropic Conjugated Polymers: Intra- and Interchain Effects

2014 ◽  
pp. 567-588
Author(s):  
Davide Comoretto ◽  
Valentina Morandi ◽  
Matteo Galli ◽  
Franco Marabelli ◽  
Cesare Soci
Keyword(s):  
Optical Properties ◽  
Conjugated Polymers ◽  
Electronic States

scholarly journals Valence Band Mixing in GaAs/AlGaAs Quantum Wells Adjacent to Self-Assembled InAlAs Antidots

2019 ◽  
Vol 2019 ◽  
pp. 1-7
Author(s):  
Takuya Kawazu
Keyword(s):  
Optical Properties ◽  
Quantum Wells ◽  
Valence Band ◽  
Energy Barrier ◽  
Heavy Hole ◽  
Electronic States ◽  
Light Hole ◽  
Photoluminescence Excitation ◽  
Band Mixing ◽  
Valence Band Mixing

Optical properties of GaAs/AlGaAs quantum wells (QWs) in the vicinity of InAlAs quantum dots (QDs) were studied and compared with a theoretical model to clarify how the QD strain affects the electronic states in the nearby QW. In0.4Al0.6As QDs are embedded at the top of the QWs; the QD layer acts as a source of strain as well as an energy barrier. Photoluminescence excitation (PLE) measurements showed that the QD formation leads to the increase in the ratio Ie-lh/Ie-hh of the PLE intensities for the light hole (lh) and the heavy hole (hh), indicating the presence of the valence band mixing. We also theoretically calculated the hh-lh mixing in the QW due to the nearby QD strain and evaluated the PLE ratio Ie-lh/Ie-hh.

scholarly journals Linear and nonlinear optical properties of the conjugated polymers PPV and MEH-PPV

1999 ◽  
Vol 59 (23) ◽  
pp. 15133-15142 ◽  
Author(s):  
S. J. Martin ◽  
D. D. C. Bradley ◽  
P. A. Lane ◽  
H. Mellor ◽  
P. L. Burn
Keyword(s):  
Optical Properties ◽  
Conjugated Polymers ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Linear And Nonlinear

Synthesis and optical properties of π-conjugated polymers composed of diester-substituted bithiophene and dibenzothiophene or carbazole

2010 ◽  
Vol 67 (2) ◽  
pp. 227-236 ◽  
Author(s):  
Kwang-Hoi Lee ◽  
Kazuhide Morino ◽  
Atsushi Sudo ◽  
Takeshi Endo
Keyword(s):  
Optical Properties ◽  
Conjugated Polymers

Synthesis and optical properties of light-emitting π-conjugated polymers containing biphenyl and dithienosilole

2007 ◽  
Vol 45 (10) ◽  
pp. 2048-2058 ◽  
Author(s):  
Liang Liao ◽  
Ali Cirpan ◽  
Qinghui Chu ◽  
Frank E. Karasz ◽  
Yi Pang
Keyword(s):  
Optical Properties ◽  
Conjugated Polymers ◽  
Light Emitting

POLARIZATION PROPERTIES OF SYNCHROTRON RADIATION IN THE STUDY OF ANISOTROPIC INSULATING CRYSTALS

2002 ◽  
Vol 09 (01) ◽  
pp. 469-472
Author(s):  
V. N. KOLOBANOV ◽  
I. A. KAMENSKIKH ◽  
V. V. MIKHAILIN ◽  
I. N. SHPINKOV ◽  
D. A. SPASSKY ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Optical Properties ◽  
Energy Transfer ◽  
Synchrotron Radiation ◽  
Valence Band ◽  
Conduction Band ◽  
Electronic States ◽  
Absorption Region ◽  
New Information ◽  
Fundamental Absorption Region

The optical properties of a wide series of the tungstates with the scheelite and wolframite crystal structure at the threshold of the fundamental absorption region were studied. New information about the influence of the electronic states forming the bottom of the conduction band and the top of the valence band on the formation of emission centers and mechanisms of energy transfer to these centers was obtained.

Atomic structure, electronic states, and optical properties of epitaxially grown β-Ga2O3 layers

2018 ◽  
Vol 120 ◽  
pp. 90-100 ◽  
Author(s):  
D.A. Zatsepin ◽  
D.W. Boukhvalov ◽  
A.F. Zatsepin ◽  
Yu A. Kuznetsova ◽  
D. Gogova ◽  
...  
Keyword(s):  
Optical Properties ◽  
Atomic Structure ◽  
Electronic States
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