hot electron transport
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ACS Nano ◽  
2020 ◽  
Vol 14 (5) ◽  
pp. 5788-5797 ◽  
Author(s):  
Giulia Tagliabue ◽  
Joseph S. DuChene ◽  
Adela Habib ◽  
Ravishankar Sundararaman ◽  
Harry A. Atwater

2020 ◽  
Vol 60 (1) ◽  
Author(s):  
Linas Ardaravičius ◽  
Oleg Kiprijanovič ◽  
Mindaugas Ramonas ◽  
Emilis Šermukšnis ◽  
Artur Šimukovič ◽  
...  

High-field electron transport measurements by applying short (few ns) voltage pulses on nominally undoped n-type Zn-polar ZnO epilayers are reported and interpreted in terms of the Boltzmann kinetic equation. The transient measurements do not demonstrate a significant change in the electron density up to 320 kV/cm electric field. This result together with the experimental data on the current allows one to estimate the electron drift velocity from the measured current: the highest value of ~2.9 × 107 cm/s is obtained at the pre-breakdown field of 320 kV/cm for the ZnO layer with the electron density of 1.5 × 1017 cm–3. The densities of double-charged oxygen vacancies (~1.6 × 1017 cm–3) and other charged centres (~1.7 × 1017 cm–3) are assumed for the best fit of the simulated and measured hot-electron effect. A correlation with the epilayer growth conditions is demonstrated: the higher Zn cell temperature favours the formation of a higher density of the oxygen vacancies (1.9 × 1017 cm–3 at 347°C).


Author(s):  
Mohammad Taghinejad ◽  
Zihao Xu ◽  
Kyu-Tae Lee ◽  
Tianquan Lian ◽  
Wenshan Cai

2019 ◽  
Vol 115 (24) ◽  
pp. 243106 ◽  
Author(s):  
Shunya Akiyama ◽  
Taichi Hirasawa ◽  
Yuya Sato ◽  
Takafumi Akiho ◽  
Koji Muraki ◽  
...  

2019 ◽  
Vol 485 ◽  
pp. 320-324 ◽  
Author(s):  
T. Ferté ◽  
N. Bergeard ◽  
G. Malinowski ◽  
E. Terrier ◽  
L. Le Guyader ◽  
...  

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