Mechanism of the enhancement and quenching of ZnO photoluminescence by ZnO-Ag couplingX. D. Zhou, X. H. Xiao, J. X. Xu, G. X. Cai, F. Ren and C. Z. JiangEPL, 93 5 (2011) 57009DOI: https://doi.org/10.1209/0295-5075/93/57009