Surface plasmon induced exciton redistribution in ZnCdO/ZnO coaxial multiquantum-well nanowires

B. Liu; C. W. Cheng; R. Chen; S. A. Ekahana; W. F. Yang; S. J. Wang; T. C. Sum; Z. X. Shen; H. J. Fan; H. D. Sun

doi:10.1063/1.3480414

Surface plasmon induced exciton redistribution in ZnCdO/ZnO coaxial multiquantum-well nanowires

B. Liu, C. W. Cheng, R. Chen, S. A. Ekahana, W. F. Yang, S. J. Wang, T. C. Sum, Z. X. Shen, H. J. Fan, H. D. Sun

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

9 Citations (Scopus)

Abstract

The authors present the surface plasmon effects of Au nanoparticles on the photoluminescence properties of ZnCdO/ZnO coaxial multiquantum-well nanowires fabricated using chemical vapor deposition and pulse laser deposition methods. The spontaneous emission rate from ZnCdO quantum wells was increased by surface plasmon coupling by 1.29 times. The strong plasmon coupling between ZnO barriers and Au nanoparticles provides an extra fast decay channel for excitons generated in ZnO barrier layer and leads to exciton redistribution in ZnCdO/ZnO coaxial quantum wells, which promotes radiative recombination in ZnO barriers but reduces the number of excitons relaxing into the ZnCdO quantum wells.

Original language	English
Article number	081107
Journal	Applied Physics Letters
Volume	97
Issue number	8
DOIs	https://doi.org/10.1063/1.3480414
Publication status	Published - Aug 23 2010
Externally published	Yes

ASJC Scopus Subject Areas

Physics and Astronomy (miscellaneous)

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title = "Surface plasmon induced exciton redistribution in ZnCdO/ZnO coaxial multiquantum-well nanowires",

abstract = "The authors present the surface plasmon effects of Au nanoparticles on the photoluminescence properties of ZnCdO/ZnO coaxial multiquantum-well nanowires fabricated using chemical vapor deposition and pulse laser deposition methods. The spontaneous emission rate from ZnCdO quantum wells was increased by surface plasmon coupling by 1.29 times. The strong plasmon coupling between ZnO barriers and Au nanoparticles provides an extra fast decay channel for excitons generated in ZnO barrier layer and leads to exciton redistribution in ZnCdO/ZnO coaxial quantum wells, which promotes radiative recombination in ZnO barriers but reduces the number of excitons relaxing into the ZnCdO quantum wells.",

author = "B. Liu and Cheng, {C. W.} and R. Chen and Ekahana, {S. A.} and Yang, {W. F.} and Wang, {S. J.} and Sum, {T. C.} and Shen, {Z. X.} and Fan, {H. J.} and Sun, {H. D.}",

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doi = "10.1063/1.3480414",

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T1 - Surface plasmon induced exciton redistribution in ZnCdO/ZnO coaxial multiquantum-well nanowires

AU - Liu, B.

AU - Cheng, C. W.

AU - Chen, R.

AU - Ekahana, S. A.

AU - Yang, W. F.

AU - Wang, S. J.

AU - Sum, T. C.

AU - Shen, Z. X.

AU - Fan, H. J.

AU - Sun, H. D.

PY - 2010/8/23

Y1 - 2010/8/23

N2 - The authors present the surface plasmon effects of Au nanoparticles on the photoluminescence properties of ZnCdO/ZnO coaxial multiquantum-well nanowires fabricated using chemical vapor deposition and pulse laser deposition methods. The spontaneous emission rate from ZnCdO quantum wells was increased by surface plasmon coupling by 1.29 times. The strong plasmon coupling between ZnO barriers and Au nanoparticles provides an extra fast decay channel for excitons generated in ZnO barrier layer and leads to exciton redistribution in ZnCdO/ZnO coaxial quantum wells, which promotes radiative recombination in ZnO barriers but reduces the number of excitons relaxing into the ZnCdO quantum wells.

AB - The authors present the surface plasmon effects of Au nanoparticles on the photoluminescence properties of ZnCdO/ZnO coaxial multiquantum-well nanowires fabricated using chemical vapor deposition and pulse laser deposition methods. The spontaneous emission rate from ZnCdO quantum wells was increased by surface plasmon coupling by 1.29 times. The strong plasmon coupling between ZnO barriers and Au nanoparticles provides an extra fast decay channel for excitons generated in ZnO barrier layer and leads to exciton redistribution in ZnCdO/ZnO coaxial quantum wells, which promotes radiative recombination in ZnO barriers but reduces the number of excitons relaxing into the ZnCdO quantum wells.

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JF - Applied Physics Letters

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Surface plasmon induced exciton redistribution in ZnCdO/ZnO coaxial multiquantum-well nanowires

Abstract

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