Density-dependent energy relaxation of hot electrons in InN epilayers

M. D. Yang; Y. W. Liu; J. L. Shen; C. W. Chen; G. C. Chi; T. Y. Lin; Wu-Ching Chou; M. H. Lo; Hao-Chung Kuo; Tien-chang Lu

doi:10.1063/1.3056383

Density-dependent energy relaxation of hot electrons in InN epilayers

M. D. Yang, Y. W. Liu, J. L. Shen, C. W. Chen, G. C. Chi, T. Y. Lin, Wu-Ching Chou, M. H. Lo, Hao-Chung Kuo, Tien-chang Lu

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

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
Article number	013526
Number of pages	5
Journal	Journal of Applied Physics
Volume	105
Issue number	1
DOIs	https://doi.org/10.1063/1.3056383
State	Published - 1 Jan 2009

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title = "Density-dependent energy relaxation of hot electrons in InN epilayers",

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.",

author = "Yang, {M. D.} and Liu, {Y. W.} and Shen, {J. L.} and Chen, {C. W.} and Chi, {G. C.} and Lin, {T. Y.} and Wu-Ching Chou and Lo, {M. H.} and Hao-Chung Kuo and Tien-chang Lu",

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doi = "10.1063/1.3056383",

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T1 - Density-dependent energy relaxation of hot electrons in InN epilayers

AU - Yang, M. D.

AU - Liu, Y. W.

AU - Shen, J. L.

AU - Chen, C. W.

AU - Chi, G. C.

AU - Lin, T. Y.

AU - Chou, Wu-Ching

AU - Lo, M. H.

AU - Kuo, Hao-Chung

AU - Lu, Tien-chang

PY - 2009/1/1

Y1 - 2009/1/1

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=67649801974&partnerID=8YFLogxK

U2 - 10.1063/1.3056383

DO - 10.1063/1.3056383

M3 - Article

AN - SCOPUS:67649801974

VL - 105

JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

IS - 1

M1 - 013526

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