Studies on the preparation and photo-electric properties of nanohybrid LB films of organometallic polymer/octadecylammonium/heteropolyanions

Li Liu, Gang Sheng Zhang, Shi Zhong Liu, Wei He Ai, Chun Mei Zhang, Zu Liang Du, Wai Yeung Wong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

8 Citations (Scopus)

Abstract

Three new hybrid LB films consisting of organometallic polymers (OMP) containing conjugated large π bond as organic composite, tungsto(molybdo) phosphoric heteropoly acids (HPA, HPA=PMo12, PW12, P2Mo18) with Keggin and Dawson structure as inorganic composite, and octadecylammonium (ODA) as auxiliary film forming agent were prepared and characterized by π-A isotherms, UV-vis absorption spectra, fluorescence spectra, atomic force microscopy, scanning tunneling microscopy, and surface photovoltage spectroscopy. The experimental results indicate that the collapse pressure of the title nanohybrid LB films was 26.8 mN/m. The fluorescence spectra showed that strong emission of OMP appeared in the films and the title LB films also had strong photoelectric response. Tunneling current was -0.1∼-2.3 nA, when voltage was ±8.0 V.
Original languageEnglish
Pages (from-to)2194-2198
Number of pages5
JournalActa Chimica Sinica
Volume63
Issue number24
Publication statusPublished - 1 Dec 2005
Externally publishedYes

Keywords

  • Langmuir-Blodgett film
  • Organometallic polymer
  • Photo-electric property
  • Polyoxometalate
  • Preparation

ASJC Scopus subject areas

  • Chemistry(all)

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