Surface passivation of luminescent colloidal quantum dots with poly(dimethylaminoethly methacrylate) through a ligand exchange process

Xiao Song Wang, Tieneke E. Dykstra, Mayrose R. Salvador, Ian Manners, Gregory D. Scholes, Mitchell A. Winnik

Research output: Contribution to journalArticle

133 Scopus citations

Abstract

Polydimethylaminoethyl methacrylate (PDMAEMA) was used as a multidentate ligand to modify the surface of CdSe/ZnS core-shell colloidal quantum dots in toluene with trioctylphosphine oxide (TOPO) as the surface ligand. Adsorption of PDMAEMA was accompanied by release of TOPO. The process is free of agglomeration, and the modified nanocrystals become soluble in methanol. The photoluminescence properties are well-preserved in either toluene or methanol.

Original languageEnglish (US)
Pages (from-to)7784-7785
Number of pages2
JournalJournal of the American Chemical Society
Volume126
Issue number25
DOIs
StatePublished - Jun 30 2004
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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