Abstract
This work investigates the dependence of the hot-electron energy relaxation in InN epilayers on electron density. From the high-energy tail of photoluminescence, the electron temperature of the hot electrons was determined. Acoustic phonons have an important role in the energy relaxation of the hot electrons. The density-dependent electron energy loss rate in InN can be explained by a combination of longitudinal optical and acoustic phonon emissions. A slowing of energy loss rate at high electron densities was observed and attributed to piezoelectric coupling to acoustic phonons.
Original language | English |
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Article number | 013526 |
Number of pages | 5 |
Journal | Journal of Applied Physics |
Volume | 105 |
Issue number | 1 |
DOIs | |
State | Published - 1 Jan 2009 |