Please use this identifier to cite or link to this item: https://doi.org/10.1209/0295-5075/99/27003
Title: Temperature-dependent exciton luminescence from an Au-nanopattern-coated ZnCdO film
Authors: Yang, W.F. 
Xie, Y.N.
Pan, Z.Y.
Hong, M.H. 
Wu, Z.Y.
Wong, L.M.
Wang, S.J.
Wang, C.F.
Lee, A.Y.S.
Gong, H. 
Issue Date: Jul-2012
Citation: Yang, W.F., Xie, Y.N., Pan, Z.Y., Hong, M.H., Wu, Z.Y., Wong, L.M., Wang, S.J., Wang, C.F., Lee, A.Y.S., Gong, H. (2012-07). Temperature-dependent exciton luminescence from an Au-nanopattern-coated ZnCdO film. EPL 99 (2) : -. ScholarBank@NUS Repository. https://doi.org/10.1209/0295-5075/99/27003
Abstract: Surface plasmon (SP) mediated emission from highly ordered Au-nanopattern-capped ZnCdO film has been studied by temperature-dependent photoluminescence (TDPL) from 10 to 300K. It is found that the bandgap emission from Au-capped ZnCdO is stronger than that of bare ZnCdO throughout the entire temperature range owing to SP coupling and surface modification. The TDPLs of ZnCdO films with and without Au coatings exhibit an inconspicuous S-shape in the plot of emission peak energy (E p) vs. temperature, signifying a weak carrier localization effect: E p redshifts in the temperature range of 10-80K, blueshifts in the range 80-140K, and redshifts again in the range 140-300K. It is interesting to find that the temperature-dependent behavior of the enhancement ratio can be divided into three temperature ranges. In the low- and high-temperature ranges, the enhancement ratio is not significantly changed with temperature. However, in the medium-temperature range, the enhancement ratio increases monotonically with temperature due to the excitons delocalization from the potential minima. These results indicate that excitons delocalization is an important prerequisite of the efficient plasmonic enhancement for SP mediated emission from ZnCdO system. Copyright © EPLA, 2012.
Source Title: EPL
URI: http://scholarbank.nus.edu.sg/handle/10635/83152
ISSN: 02955075
DOI: 10.1209/0295-5075/99/27003
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

3
checked on Sep 19, 2018

WEB OF SCIENCETM
Citations

3
checked on Sep 4, 2018

Page view(s)

35
checked on Sep 21, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.