Optical and electrical characterizations of ultrathin films self-assembled from 11-aminoundecanoic acid capped TiO2 nanoparticles and polyallylamine hydrochloride

Thierry Cassagneau, Janos H. Fendler, Thomas E. Mallouk

Research output: Contribution to journalArticlepeer-review

100 Scopus citations

Abstract

11-Aminoundecanoic acid capped titanium dioxide (capped-TiO2) nanoparticles (63±2 angstroms total diameter and 20-24 angstroms core diameter) and polyallylamine hydrochloride, PAH, have been layer-by-layer self-assembled onto precoated (by poly(diallyldimethylammonium chloride), PDDA, or PAH) substrates. The ultrathin S-PDDA(capped-TiO2/PAH)n (n = 5, 10, 15) films have been characterized by absorption and surface plasmon spectroscopies, cyclic voltammetry, and scanning force microscopy. A S-PDDA(capped-TiO2/PAH)10 film coated by a layer of gold has been shown to function as a Schottky diode.

Original languageEnglish (US)
Pages (from-to)241-246
Number of pages6
JournalLangmuir
Volume16
Issue number1
DOIs
StatePublished - Jan 1 2000

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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