1306.6136 (Dongyan Zhang et al.)

Photoluminescence modulation of ZnO via coupling with the surface
plasmon resonance of gold nanoparticles    [PDF]

Dongyan Zhang, Hiroki Ushita, Pangpang Wang, Changwook Park, Ri-ichi Murakami, Sheng-chun Yang, Xiaoping Song

In this letter, we study how coupling between AuNPs and ZnO thin films affects their emission properties. The emission intensity of ZnO thin films changes when Al2O3 spacer layer of different thickness are included in ZnO/Au films, consistent with theoretical predictions. The emission properties are also controlled using the polarization of the excitation source. Emission properties depended on the polarization of the excitation source because of the surface plasmon resonance of AuNPs. The photoluminescence anisotropy of these systems shows that enhanced photoluminescence can be achieved through coupling of the emission from ZnO with the surface plasmon resonance of AuNPs.

View original: http://arxiv.org/abs/1306.6136