Enhanced photoluminescence of ZnO nanorods via coupling with localized surface plasmon of Au nanoparticles

Rizwan Khan; Jin Hyeon Yun; Kang Bin Bae; In Hwan Lee

doi:10.1016/j.jallcom.2016.05.036

Enhanced photoluminescence of ZnO nanorods via coupling with localized surface plasmon of Au nanoparticles

Rizwan Khan, Jin Hyeon Yun, Kang Bin Bae, In Hwan Lee

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

31 Citations (Scopus)

Abstract

We demonstrated the synthesis of ZnO nanorods by using a facile solution route at low temperature. Au nanoparticles were deposited on the surface of ZnO nanorods by an in-situ solution method. The ZnO nanostructures had nanorod-like morphology in large quantity and possessed high crystallinity. An enhancement of ultraviolet emission of ZnO nanorods was observed as a result of Au nanoparticles decoration, while green emission was suppressed. This excellent photoluminescence performance is attributed to surface-plasmon-mediated quenching of defect emission and the enhancement of band-edge emission. The defect transition energy (green) of ZnO nanorods is in resonance with the localized surface plasmon energy of the Au nanoparticles, which led to the conversion of deep level green emission into band-edge ultraviolet emission.

Original language	English
Pages (from-to)	643-646
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	682
DOIs	https://doi.org/10.1016/j.jallcom.2016.05.036
Publication status	Published - 2016 Oct 15
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2016 Elsevier B.V. All rights reserved.

Keywords

Nanorods
Photoluminescence
Surface plasmons
ZnO

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.jallcom.2016.05.036

Cite this

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title = "Enhanced photoluminescence of ZnO nanorods via coupling with localized surface plasmon of Au nanoparticles",

abstract = "We demonstrated the synthesis of ZnO nanorods by using a facile solution route at low temperature. Au nanoparticles were deposited on the surface of ZnO nanorods by an in-situ solution method. The ZnO nanostructures had nanorod-like morphology in large quantity and possessed high crystallinity. An enhancement of ultraviolet emission of ZnO nanorods was observed as a result of Au nanoparticles decoration, while green emission was suppressed. This excellent photoluminescence performance is attributed to surface-plasmon-mediated quenching of defect emission and the enhancement of band-edge emission. The defect transition energy (green) of ZnO nanorods is in resonance with the localized surface plasmon energy of the Au nanoparticles, which led to the conversion of deep level green emission into band-edge ultraviolet emission.",

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author = "Rizwan Khan and Yun, {Jin Hyeon} and Bae, {Kang Bin} and Lee, {In Hwan}",

year = "2016",

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day = "15",

doi = "10.1016/j.jallcom.2016.05.036",

language = "English",

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journal = "Journal of Alloys and Compounds",

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T1 - Enhanced photoluminescence of ZnO nanorods via coupling with localized surface plasmon of Au nanoparticles

AU - Khan, Rizwan

AU - Yun, Jin Hyeon

AU - Bae, Kang Bin

AU - Lee, In Hwan

PY - 2016/10/15

Y1 - 2016/10/15

N2 - We demonstrated the synthesis of ZnO nanorods by using a facile solution route at low temperature. Au nanoparticles were deposited on the surface of ZnO nanorods by an in-situ solution method. The ZnO nanostructures had nanorod-like morphology in large quantity and possessed high crystallinity. An enhancement of ultraviolet emission of ZnO nanorods was observed as a result of Au nanoparticles decoration, while green emission was suppressed. This excellent photoluminescence performance is attributed to surface-plasmon-mediated quenching of defect emission and the enhancement of band-edge emission. The defect transition energy (green) of ZnO nanorods is in resonance with the localized surface plasmon energy of the Au nanoparticles, which led to the conversion of deep level green emission into band-edge ultraviolet emission.

AB - We demonstrated the synthesis of ZnO nanorods by using a facile solution route at low temperature. Au nanoparticles were deposited on the surface of ZnO nanorods by an in-situ solution method. The ZnO nanostructures had nanorod-like morphology in large quantity and possessed high crystallinity. An enhancement of ultraviolet emission of ZnO nanorods was observed as a result of Au nanoparticles decoration, while green emission was suppressed. This excellent photoluminescence performance is attributed to surface-plasmon-mediated quenching of defect emission and the enhancement of band-edge emission. The defect transition energy (green) of ZnO nanorods is in resonance with the localized surface plasmon energy of the Au nanoparticles, which led to the conversion of deep level green emission into band-edge ultraviolet emission.

KW - Nanorods

KW - Photoluminescence

KW - Surface plasmons

KW - ZnO

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DO - 10.1016/j.jallcom.2016.05.036

M3 - Article

AN - SCOPUS:84968719180

SN - 0925-8388

VL - 682

SP - 643

EP - 646

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Enhanced photoluminescence of ZnO nanorods via coupling with localized surface plasmon of Au nanoparticles

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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