Pressure dependence of the near-band-edge photoluminescence from ZnO microrods at low temperature

Fu Hai Su; Wen Jie Wang; Kun Ding; Guo Hua Li; Yuangfang Liu; Alan G. Joly; Wei Chen

doi:10.1016/j.jpcs.2006.06.017

Pressure dependence of the near-band-edge photoluminescence from ZnO microrods at low temperature

Fu Hai Su, Wen Jie Wang, Kun Ding, Guo Hua Li, Yuangfang Liu, Alan G. Joly, Wei Chen^*

^*Corresponding author for this work

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

14 Citations (Scopus)

Abstract

The temperature and pressure dependences of band-edge photoluminescence from ZnO microrods have been investigated. The energy separation between the free exciton (FX) and its first order phonon replica (FX-1LO) decreases at a rate of k_BT with increasing temperature. The intensity ratio of the FX-1LO to the bound exciton (BX) emission is found to decrease slightly with increasing pressure. All of the exciton emission peaks show a blue shift with increasing pressure. The pressure coefficient of the FX transition, longitudinal optical (LO) phonon energy, and binding energy of BX are estimated to be 21.4, 0.5, and 0.9 meV/GPa, respectively.

Original language	English
Pages (from-to)	2376-2381
Number of pages	6
Journal	Journal of Physics and Chemistry of Solids
Volume	67
Issue number	11
DOIs	https://doi.org/10.1016/j.jpcs.2006.06.017
Publication status	Published - Nov 2006
Externally published	Yes

Keywords

D. Luminescence
D. Phonon

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10.1016/j.jpcs.2006.06.017

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title = "Pressure dependence of the near-band-edge photoluminescence from ZnO microrods at low temperature",

abstract = "The temperature and pressure dependences of band-edge photoluminescence from ZnO microrods have been investigated. The energy separation between the free exciton (FX) and its first order phonon replica (FX-1LO) decreases at a rate of kBT with increasing temperature. The intensity ratio of the FX-1LO to the bound exciton (BX) emission is found to decrease slightly with increasing pressure. All of the exciton emission peaks show a blue shift with increasing pressure. The pressure coefficient of the FX transition, longitudinal optical (LO) phonon energy, and binding energy of BX are estimated to be 21.4, 0.5, and 0.9 meV/GPa, respectively.",

keywords = "D. Luminescence, D. Phonon",

author = "{Hai Su}, Fu and {Jie Wang}, Wen and Kun Ding and {Hua Li}, Guo and Yuangfang Liu and Joly, {Alan G.} and Wei Chen",

year = "2006",

month = nov,

doi = "10.1016/j.jpcs.2006.06.017",

language = "English",

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pages = "2376--2381",

journal = "Journal of Physics and Chemistry of Solids",

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T1 - Pressure dependence of the near-band-edge photoluminescence from ZnO microrods at low temperature

AU - Hai Su, Fu

AU - Jie Wang, Wen

AU - Ding, Kun

AU - Hua Li, Guo

AU - Liu, Yuangfang

AU - Joly, Alan G.

AU - Chen, Wei

PY - 2006/11

Y1 - 2006/11

N2 - The temperature and pressure dependences of band-edge photoluminescence from ZnO microrods have been investigated. The energy separation between the free exciton (FX) and its first order phonon replica (FX-1LO) decreases at a rate of kBT with increasing temperature. The intensity ratio of the FX-1LO to the bound exciton (BX) emission is found to decrease slightly with increasing pressure. All of the exciton emission peaks show a blue shift with increasing pressure. The pressure coefficient of the FX transition, longitudinal optical (LO) phonon energy, and binding energy of BX are estimated to be 21.4, 0.5, and 0.9 meV/GPa, respectively.

AB - The temperature and pressure dependences of band-edge photoluminescence from ZnO microrods have been investigated. The energy separation between the free exciton (FX) and its first order phonon replica (FX-1LO) decreases at a rate of kBT with increasing temperature. The intensity ratio of the FX-1LO to the bound exciton (BX) emission is found to decrease slightly with increasing pressure. All of the exciton emission peaks show a blue shift with increasing pressure. The pressure coefficient of the FX transition, longitudinal optical (LO) phonon energy, and binding energy of BX are estimated to be 21.4, 0.5, and 0.9 meV/GPa, respectively.

KW - D. Luminescence

KW - D. Phonon

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U2 - 10.1016/j.jpcs.2006.06.017

DO - 10.1016/j.jpcs.2006.06.017

M3 - Article

AN - SCOPUS:33749370729

SN - 0022-3697

VL - 67

SP - 2376

EP - 2381

JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

IS - 11

ER -

Pressure dependence of the near-band-edge photoluminescence from ZnO microrods at low temperature

Abstract

Keywords

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