Excimer formation of aryl iodides chemisorbed on gold nanoparticles for the significant enhancement of photoluminescence

Prasenjit Maity, Kenji Sasai, Raghu Nath Dhital, Hayato Sakai, Taku Hasobe, Hidehiro Sakurai

Research output: Contribution to journalArticle


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.

Original languageEnglish
Pages (from-to)1199-1203
Number of pages5
JournalJournal of Physical Chemistry Letters
Issue number4
Publication statusPublished - 2020 Feb 20


ASJC Scopus subject areas

  • Materials Science(all)
  • Physical and Theoretical Chemistry

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