Nanocomposite p-n junction polycarbazole CdSe/TiO 2 thin films on ITO via electrochemical crosslinking

Antonio F. Frau, Yushin Park, Roderick B. Pernites, Rigoberto C. Advincula

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The fabrication and characterization of a hybrid polymer p-n junction-type thin film via electropolymerization of NPs and a precursor polymer is described. Blends of TiO 2 NPs, CdSe NCs, Cbz-COOH, and PVK were utilized to enable electrochemical deposition on ITO glass substrates. Spectroscopic, microscopic, and wetting measurements confirmed thin film fabrication. CV yielded a CPN nanocomposite with electropolymerized (i.e., crosslinked) carbazole units embedding CdSe NCs. Absorption and emission measurements confirmed a charge transfer mechanism between the crosslinked carbazole and the NCs resulting in a p-n junction-type thin film on ITO; with the observed quenching of CdSe NC emission. Several possible applications of such thin films are also discussed.

Original languageEnglish
Pages (from-to)875-886
Number of pages12
JournalMacromolecular Materials and Engineering
Volume297
Issue number9
DOIs
Publication statusPublished - 2012 Sep
Externally publishedYes

Keywords

  • electropolymerization
  • junctions
  • layers
  • PLED
  • quantum dots

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

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