title: Blue luminescence of dendrimer-encapsulated gold nanoclusters.
abstract: Direct evidence for the blue luminescence of gold nanoclusters encapsulated inside hydroxyl-terminated polyamidoamine (PAMAM) dendrimers was provided by spectroscopic studies as well as by theoretical calculations. Steady-state and time-resolved spectroscopic studies showed that the luminescence of the gold nanoclusters consisted largely of two electronic transitions. Theoretical calculations indicate that the two transitions are attributed to the different sizes of the gold nanoclusters (Au8 and Au13). The luminescence of the gold nanoclusters was clearly distinguished from that of the dendrimers.
authors: Department of Chemistry, Research Institute for Basic Sciences, Kyung Hee University, Seoul 130-701 (Korea).
authors: Jun Myung
authors: JM
authors: Kim
authors: So Hyeong
authors: SH
authors: Sohn
authors: Noh Soo
authors: NS
authors: Han
authors: Seung Min
authors: SM
authors: Park
authors: Joohoon
authors: J
authors: Kim
authors: Jae Kyu
authors: JK
authors: Song
keywords: dendrimers; gold; luminescence; nanoparticles; time-resolved spectroscopy