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 | |
Publication status | Published - 2016 Jan 15 |
Externally published | Yes |
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Keywords
- Localized surface plasmons
- Nanosheets
- Photoluminescence
- ZnO
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
Cite this
Localized surface plasmon enhanced photoluminescence of ZnO nanosheets by Au nanoparticles. / Khan, Rizwan; Uthirakumar, Periyayya; Bae, Kang Bin; Leem, See Jong; Lee, In-Hwan.
In: Materials Letters, Vol. 163, 19689, 15.01.2016, p. 8-11.Research output: Contribution to journal › Article
}
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 -