Quantum-Confined Stark Effect in InGaAs/InP Quantum Wells Grown by Metal-Organic Chemical Vapor Deposition

Author(s):  
I. Bar-Joseph ◽  
C. Klingshirn ◽  
D. A. B. Miller ◽  
D. S. Chemla ◽  
U. Koren ◽  
...  
2005 ◽  
Vol 901 ◽  
Author(s):  
Shalini Gupta ◽  
Hun Kang ◽  
Matthew Kane ◽  
William E Fenwick ◽  
Nola Li ◽  
...  

AbstractQuantum dots (QDs) have been shown to improve the efficiency and optical properties of opto- electronic devices compared to two dimensional quantum wells in the active region. The formation of self-assembled GaN nanostructures on aluminum nitride (AlN) grown on sapphire substrates by Metal Organic Chemical Vapor deposition (MOCVD) was explored. This paper reports on the effect ofin-situactivation in nitrogen atmosphere on MOCVD grown GaN nanostructures. The effect of introducing manganese in these nanostructures was also studied. Optically active nanostructures were successfully obtained. A blue shift is observed in the photoluminescence data with a decrease in nanostructure size.


1999 ◽  
Vol 595 ◽  
Author(s):  
Takao Someya ◽  
Katsuyuki Hoshino ◽  
Janet C. Harris ◽  
Koichi Tachibana ◽  
Satoshi Kako ◽  
...  

AbstractPhotoluminescence (PL) spectra were measured at room temperature for GaN quantum wells (QWs) with Al0.8Ga0.2N barriers, which were grown by atmospheric-pressure metal organic chemical vapor deposition (MOCVD). The thickness of the GaN QW layers was systematically varied from one monolayer to four monolayers. We clearly observed a PL peak at a wavelength as short as 247 nm (5.03 eV) from one monolayer-thick QWs. The effective confinement energy is as large as 1.63 eV.


2015 ◽  
Vol 764-765 ◽  
pp. 1250-1254
Author(s):  
Ya Fen Wu ◽  
Jiunn Chyi Lee

The InGaN/AlGaN multiple-quantum-well heterostructures were fabricated by metal-organic chemical vapor deposition system with different indium and aluminum content during the growth of InGaN well layers and AlGaN barrier layers. Temperature-and incident-power-dependent photoluminescence were carried out to examine the recombination mechanisms in the heterostructures. Both of the localization effect and quantum-confined Stark effect are considered. From the experimental and theoretical analysis, the dependence of optical characteristics on the temperature and incident-power are consistent with the recombination mechanisms involving band-tail states and the screen of quantum-confined Stark effect.


RSC Advances ◽  
2015 ◽  
Vol 5 (92) ◽  
pp. 75211-75217 ◽  
Author(s):  
Hailiang Dong ◽  
Jing Sun ◽  
Shufang Ma ◽  
Jian Liang ◽  
Bingshe Xu

InGaAs/GaAsP MQWs grown by metal–organic chemical vapor deposition at different growth temperatures generated an indium diffusion zone (InGaAsP) between InGaAs and GaAsP.


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