Excimer Formation of Aryl Iodides Chemisorbed on Gold Nanoparticles for the Significant Enhancement of Photoluminescence.

Prasenjit MaityKenji SasaiRaghu Nath DhitalHayato SakaiTaku Hasobe Hidehiro Sakurai

Published in: The journal of physical chemistry letters (2020)

The photoluminescence properties of aryl iodides chemisorbed on gold nanoparticles were examined. Chemisorption of a series of aryl iodides onto poly(N-vinylpyrrolidone)-protected Au nanoparticles (Au:PVP) in solution resulted in highly enhanced luminescence. Kinetic studies revealed that the photoluminescence is derived from the excimer formation of aryl iodides on Au:PVP, and the process is significantly faster than intersystem crossing by the heavy atom.

Keyphrases

gold nanoparticles
quantum dots
reduced graphene oxide
sensitive detection
energy transfer
light emitting
molecular dynamics
single cell
visible light