undoped gaas
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scholarly journals PL Spectra and Hot Charge Carrier Phenomena in an Undoped GaAs/AlGaAs Tunnel-Coupled Quantum Well

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Kanothai Jarusirirangsi ◽  
Paphavee van Dommelen ◽  
Chalongrat Daengngam
Keyword(s):  
Experimental Study ◽  
Quantum Well ◽  
Quantum Confinement ◽  
High Energy ◽  
Hot Electrons ◽  
Hot Electron ◽  
Energy Rate ◽  
Pl Spectra ◽  
Coupled Quantum Well ◽  
Undoped Gaas

In this research, we experimentally investigated the photoluminescence (PL) spectra of an undoped GaAs/Al0.36Ga0.64As Tunnel-Coupled Quantum Well (TCQW) at 300 K and 77 K. At 300 K, PL spectra were broadened at various laser intensities due to the characteristic quantum-confinement electron levels in the active region of the TCQW during pumping excitation. At 77 K, at selected excitation intensities, the high-energy tails in the PL spectra of the studied structure corresponded with hot electron temperatures as functions of the energy of emitted photons. The average scattering energy rate of hot electrons in the system was also studied at a lattice temperature of 77 K. The average scattering energy rate of hot electrons obtained from this experimental study was in agreement with the calculated theoretical value.

Distinguishing persistent effects in an undoped GaAs/AlGaAs quantum well by top-gate-dependent illumination

2021 ◽  
Vol 129 (23) ◽  
pp. 234301
Author(s):  
Takafumi Fujita ◽  
Ryota Hayashi ◽  
Makoto Kohda ◽  
Julian Ritzmann ◽  
Arne Ludwig ◽  
...  
Keyword(s):  
Quantum Well ◽  
Undoped Gaas

scholarly journals Photoluminesence study of undoped GaAs at temperatures 300 K and 77 K

2021 ◽  
Vol 1825 (1) ◽  
pp. 012046
Author(s):  
V F Amaliya ◽  
A Yuniati ◽  
P van Dommelen
Keyword(s):  
Undoped Gaas

Extensive study on the effect of undoped GaAs layers on mesfet channels and its application for Ku-band extra high output power devices

2020 ◽  
pp. 119-178
Author(s):  
Naotaka Iwata ◽  
Hiroshi Mizutani ◽  
Satoshi Ichikawa ◽  
Akira Mochizuki ◽  
Hiromitsu Hirayama
Keyword(s):  
Output Power ◽  
Extensive Study ◽  
High Output Power ◽  
Power Devices ◽  
Undoped Gaas ◽  
High Output ◽  
Ku Band

Properties of a Surface-Gate-Controlled Two-Dimensional Electron Gas in Undoped GaAs/AlGaAs Heterostructures

2020 ◽  
Vol 76 (12) ◽  
pp. 1083-1087
Author(s):  
Hyungkook Choi ◽  
Youngwoo Nam ◽  
Jae-Hyun Lee ◽  
Seok-Kyun Son
Keyword(s):  
Electron Gas ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Two Dimensional Electron Gas ◽  
Dimensional Electron Gas ◽  
Undoped Gaas

scholarly journals Highly sensitive piezotronic pressure sensors based on undoped GaAs nanowire ensembles

2019 ◽  
Vol 52 (29) ◽  
pp. 294002 ◽  
Author(s):  
Yonatan Calahorra ◽  
Anke Husmann ◽  
Alice Bourdelain ◽  
Wonjong Kim ◽  
Jelena Vukajlovic-Plestina ◽  
...  
Keyword(s):  
Pressure Sensors ◽  
Highly Sensitive ◽  
Gaas Nanowire ◽  
Undoped Gaas

Dynamics of Locally Injected Spin Distribution in Undoped GaAs Quantum Wells

2018 ◽  
Author(s):  
H. Sanada ◽  
Y. Kunihashi ◽  
Y. Tanaka ◽  
A.M. Stramma ◽  
H. Gotoh ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Spin Distribution ◽  
Undoped Gaas

scholarly journals Reappearance of linear hole transport in an ambipolar undoped GaAs/AlGaAs quantum well

2017 ◽  
Vol 29 (18) ◽  
pp. 185302
Author(s):  
Deepyanti Taneja ◽  
Issai Shlimak ◽  
Vijay Narayan ◽  
Moshe Kaveh ◽  
Ian Farrer ◽  
...  
Keyword(s):  
Quantum Well ◽  
Hole Transport ◽  
Undoped Gaas
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