Localized surface plasmon enhanced photoluminescence of ZnO nanosheets by Au nanoparticles

Rizwan Khan; Periyayya Uthirakumar; Kang Bin Bae; See Jong Leem; In Hwan Lee

doi:10.1016/j.matlet.2015.10.033

Localized surface plasmon enhanced photoluminescence of ZnO nanosheets by Au nanoparticles

Rizwan Khan, Periyayya Uthirakumar, Kang Bin Bae, See Jong Leem, In Hwan Lee

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

29 Citations (Scopus)

Abstract

ZnO nanosheets were synthesized by a facile low temperature hydrothermal method and the Au nanoparticles were decorated on the surface of ZnO nanosheets by an in-situ solution method. The ZnO nanostructures had sheet-like morphology with relatively uniform size and possessed high crystallinity. The average diameter of Au nanoparticles decorated on the ZnO nanosheets was around 10-20 nm. The ultraviolet emission from Au decorated ZnO nanosheets was greatly enhanced and the green emission was significantly suppressed compared with the bare ZnO nanosheets. This excellent photoluminescence performance was attributable to the surface-plasmon-mediated sequential transfer of defect energy from ZnO to Au and electron transfer from excited Au to ZnO.

Original language	English
Article number	19689
Pages (from-to)	8-11
Number of pages	4
Journal	Materials Letters
Volume	163
DOIs	https://doi.org/10.1016/j.matlet.2015.10.033
Publication status	Published - 2016 Jan 15
Externally published	Yes

Keywords

Localized surface plasmons
Nanosheets
Photoluminescence
ZnO

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/j.matlet.2015.10.033

Cite this

@article{650f6fa4909f43a6a491b39bd50335f3,

title = "Localized surface plasmon enhanced photoluminescence of ZnO nanosheets by Au nanoparticles",

abstract = "ZnO nanosheets were synthesized by a facile low temperature hydrothermal method and the Au nanoparticles were decorated on the surface of ZnO nanosheets by an in-situ solution method. The ZnO nanostructures had sheet-like morphology with relatively uniform size and possessed high crystallinity. The average diameter of Au nanoparticles decorated on the ZnO nanosheets was around 10-20 nm. The ultraviolet emission from Au decorated ZnO nanosheets was greatly enhanced and the green emission was significantly suppressed compared with the bare ZnO nanosheets. This excellent photoluminescence performance was attributable to the surface-plasmon-mediated sequential transfer of defect energy from ZnO to Au and electron transfer from excited Au to ZnO.",

keywords = "Localized surface plasmons, Nanosheets, Photoluminescence, ZnO",

author = "Rizwan Khan and Periyayya Uthirakumar and Bae, {Kang Bin} and Leem, {See Jong} and Lee, {In Hwan}",

year = "2016",

month = jan,

day = "15",

doi = "10.1016/j.matlet.2015.10.033",

language = "English",

volume = "163",

pages = "8--11",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier",

}

TY - JOUR

T1 - Localized surface plasmon enhanced photoluminescence of ZnO nanosheets by Au nanoparticles

AU - Khan, Rizwan

AU - Uthirakumar, Periyayya

AU - Bae, Kang Bin

AU - Leem, See Jong

AU - Lee, In Hwan

PY - 2016/1/15

Y1 - 2016/1/15

N2 - ZnO nanosheets were synthesized by a facile low temperature hydrothermal method and the Au nanoparticles were decorated on the surface of ZnO nanosheets by an in-situ solution method. The ZnO nanostructures had sheet-like morphology with relatively uniform size and possessed high crystallinity. The average diameter of Au nanoparticles decorated on the ZnO nanosheets was around 10-20 nm. The ultraviolet emission from Au decorated ZnO nanosheets was greatly enhanced and the green emission was significantly suppressed compared with the bare ZnO nanosheets. This excellent photoluminescence performance was attributable to the surface-plasmon-mediated sequential transfer of defect energy from ZnO to Au and electron transfer from excited Au to ZnO.

AB - ZnO nanosheets were synthesized by a facile low temperature hydrothermal method and the Au nanoparticles were decorated on the surface of ZnO nanosheets by an in-situ solution method. The ZnO nanostructures had sheet-like morphology with relatively uniform size and possessed high crystallinity. The average diameter of Au nanoparticles decorated on the ZnO nanosheets was around 10-20 nm. The ultraviolet emission from Au decorated ZnO nanosheets was greatly enhanced and the green emission was significantly suppressed compared with the bare ZnO nanosheets. This excellent photoluminescence performance was attributable to the surface-plasmon-mediated sequential transfer of defect energy from ZnO to Au and electron transfer from excited Au to ZnO.

KW - Localized surface plasmons

KW - Nanosheets

KW - Photoluminescence

KW - ZnO

UR - http://www.scopus.com/inward/record.url?scp=84944339561&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84944339561&partnerID=8YFLogxK

U2 - 10.1016/j.matlet.2015.10.033

DO - 10.1016/j.matlet.2015.10.033

M3 - Article

AN - SCOPUS:84944339561

VL - 163

SP - 8

EP - 11

JO - Materials Letters

JF - Materials Letters

SN - 0167-577X

M1 - 19689

ER -

Localized surface plasmon enhanced photoluminescence of ZnO nanosheets by Au nanoparticles

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this