Hot-electron transport in AlGaN∕ GaN two-dimensional conducting channels
BA Danilchenko, SE Zelensky, E Drok… - Applied physics …, 2004 - pubs.aip.org
We report on experimental studies of high-field electron transport in Al Ga N∕ Ga N two-
dimensional electron gas. The velocity–electric field characteristics are extracted from 10 to
30 ns pulsed current–voltage measurements for 4.2 and 300 K. An electron drift velocity as
high as 1.7× 10 7 cm∕ s was obtained in the fields 150 kV∕ cm. Estimates of thermal
budget of the system show that overheating of the electrons exceeds 1700 K at highest
electric fields achieved in the experiment.
dimensional electron gas. The velocity–electric field characteristics are extracted from 10 to
30 ns pulsed current–voltage measurements for 4.2 and 300 K. An electron drift velocity as
high as 1.7× 10 7 cm∕ s was obtained in the fields 150 kV∕ cm. Estimates of thermal
budget of the system show that overheating of the electrons exceeds 1700 K at highest
electric fields achieved in the experiment.
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