Effect of polymer ligand structures on fluorescence of gold clusters prepared by photoreduction

Authors

Luo Li, Huazhong University of Science and Technology
Zhen Li, University of WollongongFollow
Hui Zhang, Huazhong University of Science and Technology
Shoucun Zhang, Huazhong University of Science and Technology
Irfan Majeed, Huazhong University of Science and Technology
Bien Tan, Huazhong University of Science and Technology

RIS ID

75820

Publication Details

Li, L., Li, Z., Zhang, H., Zhang, S., Majeed, I. & Tan, B. (2013). Effect of polymer ligand structures on fluorescence of gold clusters prepared by photoreduction. Nanoscale, 5 (5), 1986-1992.

Abstract

Blue emission fluorescent Au5 clusters with maximum quantum yield of 20.1% were synthesized by a simple photoreduction method using three specially designed tridentate polymer ligands. The evolution of fluorescent Au nanoclusters (Au NCs) under UV irradiation was studied by fluorescence, UV-Vis and X-ray photoelectron spectroscopic techniques, suggesting that the fluorescence of Au NCs is size-dependent and is associated with the presence of Au(i) ions in the Au NCs. The effect of polymer structure on the fluorescent Au NCs has also been discussed. These highly fluorescent Au NCs have potential applications in the fabrication of optoelectronic devices and light emitting materials.