Photochromic nanocomposites of bipyridinium dications and semiconductor quantum dots

Ibrahim Yildiz, Francisco Raymo

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The development of photochromic materials based on the photoinduced transfer of electrons from CdSe-ZnS core-shell quantum dots to bipyridinium dications, was analyzed. These quantum dots can efficiently mediate the transfer of electrons from sacrificial donors to bipyridinium acceptors upon visible irradiation. The photocoloration of the bipyridinium dications can be reversed in both instances by exposing the samples to molecular oxygen. The results show that the operating mechanism and choice of building blocks, can lead to the development of a new family of photochromic materials that can be operated with visible photons relying on the unique photophysical properties of semiconductor quantum dots.

Original languageEnglish
Pages (from-to)1118-1120
Number of pages3
JournalJournal of Materials Chemistry
Volume16
Issue number12
DOIs
StatePublished - Mar 20 2006

Fingerprint

Semiconductor quantum dots
Nanocomposites
nanocomposites
quantum dots
Electrons
Molecular oxygen
electrons
Photons
Irradiation
irradiation
photons
oxygen

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Materials Chemistry
  • Materials Science(all)

Cite this

Photochromic nanocomposites of bipyridinium dications and semiconductor quantum dots. / Yildiz, Ibrahim; Raymo, Francisco.

In: Journal of Materials Chemistry, Vol. 16, No. 12, 20.03.2006, p. 1118-1120.

Research output: Contribution to journalArticle

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