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Self‐Assembled Diode Junctions Prepared from a Ruthenium Tris(Bipyridyl) Polymer, n‐Type TiO 2 Nanoparticles, and Graphite Oxide Sheets
Author(s) -
Cassagneau T.,
Fendler J. H.,
Johnson S. A.,
Mallouk T. E.
Publication year - 2000
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/1521-4095(200009)12:18<1363::aid-adma1363>3.0.co;2-m
Subject(s) - materials science , nanoparticle , diode , polymer , graphite oxide , oxide , ruthenium , graphite , nanotechnology , thin film , redox , chemical engineering , polymer chemistry , optoelectronics , organic chemistry , composite material , catalysis , chemistry , engineering , metallurgy
Thin‐film diode structures made by the sequential adsorption of redox‐active polymers and semiconductor nanoparticles are explored here. In this work, TiO 2 nanoparticles and graphite oxide (GO) nanoplatelets are used as electron‐ and hole‐conducting components, respectively, and a [Ru(bpy) 3 ] 2+ ‐containing polymer (RuP, see Figure) is used as the redox‐active component. The interconnection of the RuP layers via thin GO sheets allows electroactivity to be observed at positive bias.