Study of excitonic emission in highly faceted ZnO rods

W. M. Kwok; A. B. Djurišić; Y. H. Leung; W. K. Chan; D. L. Phillips; H. Y. Chen; C. L. Wu; S. Gwo; M. H. Xie

doi:10.1016/j.cplett.2005.06.116

Study of excitonic emission in highly faceted ZnO rods

W. M. Kwok, A. B. Djurišić, Y. H. Leung, W. K. Chan, D. L. Phillips, H. Y. Chen, C. L. Wu, S. Gwo, M. H. Xie

物理學系

研究成果: Article › 同行評審

29 引文斯高帕斯（Scopus）

摘要

We report a detailed photoluminescence study of ZnO rods which exhibit 18 side surfaces. The photoluminescence studies reveal excellent optical quality of the rods, comparable to that of thin films in spite of their large surface area. The low-temperature PL spectra are dominated by a narrow and very intense bound exciton emission. Time resolved PL results show very long decay time of spontaneous emission, with the time constants of biexponential decay equal to 116 ps and 1.2 ns. The stimulated emission spectra reveal very narrow lasing modes with widths of 0.4-0.5 nm and decay times of 4-5 ps.

原文	English
頁（從 - 到）	141-144
頁數	4
期刊	Chemical Physics Letters
卷	412
發行號	1-3
DOIs	https://doi.org/10.1016/j.cplett.2005.06.116
出版狀態	Published - 2005 8月 25

All Science Journal Classification (ASJC) codes

一般物理與天文學
物理與理論化學

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10.1016/j.cplett.2005.06.116

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title = "Study of excitonic emission in highly faceted ZnO rods",

abstract = "We report a detailed photoluminescence study of ZnO rods which exhibit 18 side surfaces. The photoluminescence studies reveal excellent optical quality of the rods, comparable to that of thin films in spite of their large surface area. The low-temperature PL spectra are dominated by a narrow and very intense bound exciton emission. Time resolved PL results show very long decay time of spontaneous emission, with the time constants of biexponential decay equal to 116 ps and 1.2 ns. The stimulated emission spectra reveal very narrow lasing modes with widths of 0.4-0.5 nm and decay times of 4-5 ps.",

author = "Kwok, {W. M.} and Djuri{\v s}i{\'c}, {A. B.} and Leung, {Y. H.} and Chan, {W. K.} and Phillips, {D. L.} and Chen, {H. Y.} and Wu, {C. L.} and S. Gwo and Xie, {M. H.}",

note = "Funding Information: This work is partly supported by the Research Grant Council of the Hong Kong Special Administrative Region, China (Project Nos. HKU 1/01C to D.L.P. and HKU 7019/04P to A.B.D.). ",

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AU - Kwok, W. M.

AU - Djurišić, A. B.

AU - Leung, Y. H.

AU - Chan, W. K.

AU - Phillips, D. L.

AU - Chen, H. Y.

AU - Wu, C. L.

AU - Gwo, S.

AU - Xie, M. H.

N1 - Funding Information: This work is partly supported by the Research Grant Council of the Hong Kong Special Administrative Region, China (Project Nos. HKU 1/01C to D.L.P. and HKU 7019/04P to A.B.D.).

PY - 2005/8/25

Y1 - 2005/8/25

N2 - We report a detailed photoluminescence study of ZnO rods which exhibit 18 side surfaces. The photoluminescence studies reveal excellent optical quality of the rods, comparable to that of thin films in spite of their large surface area. The low-temperature PL spectra are dominated by a narrow and very intense bound exciton emission. Time resolved PL results show very long decay time of spontaneous emission, with the time constants of biexponential decay equal to 116 ps and 1.2 ns. The stimulated emission spectra reveal very narrow lasing modes with widths of 0.4-0.5 nm and decay times of 4-5 ps.

AB - We report a detailed photoluminescence study of ZnO rods which exhibit 18 side surfaces. The photoluminescence studies reveal excellent optical quality of the rods, comparable to that of thin films in spite of their large surface area. The low-temperature PL spectra are dominated by a narrow and very intense bound exciton emission. Time resolved PL results show very long decay time of spontaneous emission, with the time constants of biexponential decay equal to 116 ps and 1.2 ns. The stimulated emission spectra reveal very narrow lasing modes with widths of 0.4-0.5 nm and decay times of 4-5 ps.

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VL - 412

SP - 141

EP - 144

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 1-3

ER -

Study of excitonic emission in highly faceted ZnO rods

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