Light-emitting properties of a strain-tuned microtube containing coupled quantum wells

2013 ◽  
Vol 102 (4) ◽  
pp. 041109 ◽  
Author(s):  
S. Kiravittaya ◽  
Ch. Deneke ◽  
Dominic J. Thurmer ◽  
O. G. Schmidt
Keyword(s):  
Quantum Wells ◽  
Coupled Quantum Wells ◽  
Light Emitting

scholarly journals Intersubband Transition Engineering in the Conduction Band of Asymmetric Coupled Ge/SiGe Quantum Wells

Crystals ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 179 ◽  
Author(s):  
Luca Persichetti ◽  
Michele Montanari ◽  
Chiara Ciano ◽  
Luciana Di Gaspare ◽  
Michele Ortolani ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Conduction Band ◽  
Tunnel Barrier ◽  
Interface Quality ◽  
Coupled Quantum Wells ◽  
Light Emitting ◽  
Quantum Cascade ◽  
Structural Interface ◽  
Silicon Based

n-type Ge/SiGe asymmetric coupled quantum wells represent the building block of a variety of nanoscale quantum devices, including recently proposed designs for a silicon-based THz quantum cascade laser. In this paper, we combine structural and spectroscopic experiments on 20-module superstructures, each featuring two Ge wells coupled through a Ge-rich SiGe tunnel barrier, as a function of the geometry parameters of the design and the P dopant concentration. Through a comparison of THz spectroscopic data with numerical calculations of intersubband optical absorption resonances, we demonstrated that it is possible to tune, by design, the energy and the spatial overlap of quantum confined subbands in the conduction band of the heterostructures. The high structural/interface quality of the samples and the control achieved on subband hybridization are promising starting points towards a working electrically pumped light-emitting device.

scholarly journals Reduction of efficiency droop in InGaN light emitting diodes by coupled quantum wells

2008 ◽  
Vol 93 (17) ◽  
pp. 171113 ◽  
Author(s):  
Xianfeng Ni ◽  
Qian Fan ◽  
Ryoko Shimada ◽  
Ümit Özgür ◽  
Hadis Morkoç
Keyword(s):  
Quantum Wells ◽  
Light Emitting Diodes ◽  
Efficiency Droop ◽  
Coupled Quantum Wells ◽  
Light Emitting

Theory of Light-Induced Drift of Electrons in Coupled Quantum Wells

1992 ◽  
Author(s):  
Mark I. Stockman ◽  
Leonid S. Muratov ◽  
Thomas F. George
Keyword(s):  
Quantum Wells ◽  
Coupled Quantum Wells

Rational construction of staggered InGaN quantum wells for efficient yellow light-emitting diodes

2021 ◽  
Vol 118 (18) ◽  
pp. 182102
Author(s):  
Xiaoyu Zhao ◽  
Bin Tang ◽  
Liyan Gong ◽  
Junchun Bai ◽  
Jiafeng Ping ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Light Emitting Diodes ◽  
Yellow Light ◽  
Light Emitting ◽  
Rational Construction ◽  
Ingan Quantum Wells

Study of electron-related intersubband optical properties in three coupled quantum wells wires with triangular transversal section

2015 ◽  
Vol 87 ◽  
pp. 131-136 ◽  
Author(s):  
A. Tiutiunnyk ◽  
V. Tulupenko ◽  
V. Akimov ◽  
R. Demediuk ◽  
A.L. Morales ◽  
...  
Keyword(s):  
Optical Properties ◽  
Quantum Wells ◽  
Coupled Quantum Wells ◽  
Transversal Section

Luminescence studies of resonant tunneling in a triple barrier structure with strongly coupled quantum wells

1994 ◽  
Vol 37 (4-6) ◽  
pp. 721-724 ◽  
Author(s):  
T.S. Turner ◽  
P.M. Martin ◽  
L. Eaves ◽  
H.B. Evans ◽  
P.A. Harrison ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Resonant Tunneling ◽  
Barrier Structure ◽  
Coupled Quantum Wells ◽  
Strongly Coupled
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