scholarly journals Investigation of the strain induced optical transition energy shift of the GaN nanorod light emitting diode arrays

2011 ◽  
Vol 19 (S4) ◽  
pp. A900 ◽  
Author(s):  
Liang-Yi Chen ◽  
Hung-Hsun Huang ◽  
Chun-Hsiang Chang ◽  
Ying-Yuan Huang ◽  
Yuh-Renn Wu ◽  
...  
Keyword(s):  
Transition Energy ◽  
Optical Transition ◽  
Light Emitting Diode ◽  
Energy Shift ◽  
Light Emitting ◽  
Optical Transition Energy

The temperature-dependent luminescence properties of BaAl2−xSixO4−xNx:Eu2+ and its application in yellowish-green light emitting diode

2009 ◽  
Vol 24 (8) ◽  
pp. 2589-2595 ◽  
Author(s):  
Mei Zhang ◽  
Baohong Li ◽  
Jing Wang ◽  
Zhiyang Zhang ◽  
Qiuhong Zhang ◽  
...  
Keyword(s):  
Light Emitting Diode ◽  
Forward Bias ◽  
Green Light ◽  
Thermal Quenching ◽  
Energy Shift ◽  
Light Emitting ◽  
Yellowish Green ◽  
Near Ultraviolet ◽  
Increasing Temperature ◽  
Cation Sites

The influences of (SiN)+ and Eu2+ concentration on the optical properties of BaAl2−xSixO4−xNx:Eu2+ were investigated. The lifetime results show that there are two different cation sites occupied by Eu2+ ions and the energy transfer occurs between them. The Huang–Rhys factor and the Stokes energy shift were determined, and thermal quenching with increasing temperature was observed. Finally, intense yellowish-green light emitting diodes (LED) with the color coordinate of (0.2936, 0.4483) under a forward-bias current of 20 mA was successfully fabricated on the basis of a structure consisting of BaAl2−xSixO4−xNx:Eu2+ phosphor and near-ultraviolet (∼395 nm) GaN chip.

Dispersion of electron g-factor with optical transition energy in (In,Ga)As/GaAs self-assembled quantum dots

2011 ◽  
Vol 98 (23) ◽  
pp. 233102 ◽  
Author(s):  
A. Schwan ◽  
B.-M. Meiners ◽  
A. B. Henriques ◽  
A. D. B. Maia ◽  
A. A. Quivy ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Transition Energy ◽  
Optical Transition ◽  
G Factor ◽  
Optical Transition Energy ◽  
Self Assembled

scholarly journals Fine tuning of optical transition energy of twisted bilayer graphene via interlayer distance modulation

2017 ◽  
Vol 95 (8) ◽  
Author(s):  
Elena del Corro ◽  
Miriam Peña-Alvarez ◽  
Kentaro Sato ◽  
Angel Morales-Garcia ◽  
Milan Bousa ◽  
...  
Keyword(s):  
Transition Energy ◽  
Optical Transition ◽  
Bilayer Graphene ◽  
Fine Tuning ◽  
Interlayer Distance ◽  
Optical Transition Energy ◽  
Twisted Bilayer Graphene

Pulse radiolytic formation of solvated electrons in hydrazine

1976 ◽  
Vol 54 (17) ◽  
pp. 2807-2812 ◽  
Author(s):  
William Arthur Seddon ◽  
John Wallace Fletcher ◽  
Fred Charles Sopchyshyn
Keyword(s):  
Room Temperature ◽  
Transition Energy ◽  
Optical Transition ◽  
Lone Pair ◽  
Solvated Electrons ◽  
Optical Absorption Band ◽  
Optical Transition Energy ◽  
Nitrogen Lone Pair ◽  
Basic Solutions ◽  
Lone Pair Electrons

The spectrum and yield of solvated electrons in anhydrous hydrazine have been investigated by pulse radiolysis. At room temperature the optical absorption band has a maximum at 1.22 eV (1015 nm) with a molar extinction coefficient of 2.2 ± 0.1 × 104 M−1 cm−1 and a temperature coefficient of 1.5 × 10−3 eV deg−1 from 7–45 °C. The oscillator strength is estimated to be 0.6. The optical transition energy is in reasonable agreement with an empirical correlation of solvent properties proposed by Freeman provided that only the polarisability of the nitrogen lone-pair electrons contribute to Emax. Comparisons are made with liquid amides which also have lone-pair polarisable groups and with water and liquid ammonia which have physical properties very similar to hydrazine. Electron yields increase from [Formula: see text] in pure hydrazine to 2.65 + 0.15 in basic solutions containing ≥0.1 M sodium hydrazide.

scholarly journals Stabilization of an optical transition energy via nuclear Zeno dynamics in quantum-dot–cavity systems

2019 ◽  
Vol 99 (5) ◽  
Author(s):  
Thomas Nutz ◽  
Petros Androvitsaneas ◽  
Andrew Young ◽  
Ruth Oulton ◽  
Dara P. S. McCutcheon
Keyword(s):  
Quantum Dot ◽  
Transition Energy ◽  
Optical Transition ◽  
Optical Transition Energy
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