Giant enhancement of top emission from ZnO thin film by nano-patterned Pt
Liu, K. W.
Tang, Y. D.
Sum, Tze Chien
Huan, Alfred Cheng Hon
Jiang, F. Y.
Date of Issue2009
School of Physical and Mathematical Sciences
The authors report the enhancement of the bandgap emission from ZnO thin films by surface modification and surface plasmon cross-coupling. 12-fold and twofold enhancements of bandgap emission from the metal side of ZnO film were observed by sputtering Pt nanopattern and Pt film onto ZnO film, respectively. Time-resolved photoluminescence indicates that the decay time is slowed down by Pt capping, contrary to common observations. The “abnormal” phenomena are interpreted by considering both the surface modification and surface plasmon coupling.
DRNTU::Engineering::Materials::Photonics and optoelectronics materials
Applied physics letter
Applied Physics Letter @ copyright 2009 American Institute of Physics. The journal's website is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4816218.