SELF-ASSEMBLED MULTILAYERS OF CdSe NANOCRYSTALS AND p, n-TYPE MOLECULES FOR PHOTOVOLTAIC. OPTICAL, ELECTROCHEMICAL AND PHTOCONDUCTIVE PROPERTIES (Abstract/Poster in atti di convegno)

Type
Label
  • SELF-ASSEMBLED MULTILAYERS OF CdSe NANOCRYSTALS AND p, n-TYPE MOLECULES FOR PHOTOVOLTAIC. OPTICAL, ELECTROCHEMICAL AND PHTOCONDUCTIVE PROPERTIES (Abstract/Poster in atti di convegno) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Alternative label
  • B. Vercelli, G. Zotti, M. Pasini, T. Virgili, A. Berlin (2012)
    SELF-ASSEMBLED MULTILAYERS OF CdSe NANOCRYSTALS AND p, n-TYPE MOLECULES FOR PHOTOVOLTAIC. OPTICAL, ELECTROCHEMICAL AND PHTOCONDUCTIVE PROPERTIES
    in ISMAC WORKSHOP 2012 DEDICATED TO A. BOLOGNESI, Milano, 15/11/2012
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • B. Vercelli, G. Zotti, M. Pasini, T. Virgili, A. Berlin (literal)
Note
  • Poster (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Istituto perl'Energetica e le Interfasi, Consiglio Nazionale delle Ricerche Via Cozzi 53, 20125 Milano (Italy); Istituto per lo Studio delle Macromolecole, Consiglio Nazionale delle Ricerche Via Bassini 95, 20133 Milano (Italy); Istituto di Fotonica e Nanostrutture, Consiglio Nazionale delle Ricerche P.le Leonardo Da Vinci 32, 20132 Milano (Italy); Istituto di Scienze e Tecnologie Molecolari, Consiglio Nazionale delle Ricerche via Golgi 19, 20133, Milano (Italy) (literal)
Titolo
  • SELF-ASSEMBLED MULTILAYERS OF CdSe NANOCRYSTALS AND p, n-TYPE MOLECULES FOR PHOTOVOLTAIC. OPTICAL, ELECTROCHEMICAL AND PHTOCONDUCTIVE PROPERTIES (literal)
Abstract
  • The integration of inorganic semiconductor nanoparticles and organic conjugated polymers leads to composite materials with interesting physical properties1. Their characteristics are promising for applications in light-emitting diodes, photovoltaics, photorefractions, lasers, and biosensors2. In this work, we consider p-type and n-type conduction (Schemes 1 and 2, respectively). The layer-by-layer (LBL) method is used to obtain hybrid organic molecule/inorganic semiconductor nanoparticles multilayer thin films. We choose oligothiophenes (as anionic bipolar amphiphiles) or polythiophenes (bearing anionic substituents aside the polyconjugated chain) for p-type conduction, while a series of linear phenylene-based molecules, bearing carboxylic acid or carboxylate functionalities at both ends are selected for n-type conduction. The inorganic semiconductor component is hexadecylamine-capped CdSe nanocrystals of about 7.5 nm of diameter. The multilayer buildup was monitored by UV-vis spectroscopy and the new hybrid materials were characterized by cyclic voltammetry (CV), UV-vis and FTIR spectroscopy, photoelectrochemistry and photoconductivity . (literal)
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