Self-Assembled Structures of Semiconductor Nanocrystals and Polymers for Photovoltaics. 1. CdSe Nanocrystal-Polymer Multilayers. Optical, Electrochemical, Photoelectrochemical and Photoconductive Properties (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Self-Assembled Structures of Semiconductor Nanocrystals and Polymers for Photovoltaics. 1. CdSe Nanocrystal-Polymer Multilayers. Optical, Electrochemical, Photoelectrochemical and Photoconductive Properties (Articolo in rivista) (literal)

Anno

• 2009-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1021/cm900460j (literal)

Alternative label

• Zotti G.; Vercelli B.; Berlin A.; Chin P. T. K.; Giovanella U. (2009)
  Self-Assembled Structures of Semiconductor Nanocrystals and Polymers for Photovoltaics. 1. CdSe Nanocrystal-Polymer Multilayers. Optical, Electrochemical, Photoelectrochemical and Photoconductive Properties
  in Chemistry of materials
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Zotti G.; Vercelli B.; Berlin A.; Chin P. T. K.; Giovanella U. (literal)

Pagina inizio

• 2258 (literal)

Pagina fine

• 2271 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

• http://pubs.acs.org/doi/abs/10.1021/cm900460j (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 21 (literal)

Rivista

• Chemistry of materials (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note

• DOI: 10.1021/cm900460j (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 11 (literal)

Note

• ISI Web of Science (WOS) (literal)
• Scopu (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Zotti G., Vercelli B., Istituto CNR per l’ Energetica e le Interfasi, c.o Stati Uniti 4, 35127 Padova, Italy Berlin A., Istituto CNR di Scienze e Tecnologie Molecolari, Via C. Golgi 19, 20133 Milano, Italy Chin P. T. K., Molecular Materials and Nanosystems, EindhoVen UniVersity of Technology, P.O. Box 513, NL-5600 MB EindhoVen, The Netherlands Giovanella U., Istituto CNR per lo Studio delle Macromolecole, Via E. Bassini 15, 20133 Milano, Italy (literal)

Titolo

• Self-Assembled Structures of Semiconductor Nanocrystals and Polymers for Photovoltaics. 1. CdSe Nanocrystal-Polymer Multilayers. Optical, Electrochemical, Photoelectrochemical and Photoconductive Properties (literal)

Abstract

• Hybrid materials of polymers and cadmium selenide nanocrystals (CdSe-NCs) were produced through a layer-by-layer deposition technique. Polymer series comprises sulfonic, phosphonic and carboxylic acids, pyridine- and amine-based polymers and some related bipolar amphiphiles including a dithiol. Nonaqueous dispersions of amine- and oleate-capped CdSe-NCs with 3, 4 and 5 nm diameter were used. Polymers and CdSe-NCs are alternately deposited on indium-tin-oxide/glass surfaces. CdSe-NCs layers undergo a sharp and irreversible electroxidation process in acetonitrile corresponding to the passage of two electrons per CdSe unit. The multilayer build-up, monitored by UV-vis spectroscopy and cyclic voltammetry, shows an increase of the film absorbance and oxidation stripping charge proportional with the number of adsorbed CdSe layers and with the particle diameter. Layer formation rate by acids follows their acidity, with thiols being much slower than sulfonic, phosphonic or carboxylic acids. The semiconductor properties of the multilayers were evidenced by photoluminescence (PL), photoelectrolchemical and photoconduction analysis. Good PL was recorded in pyridine-, amine- and carboxylate-based multilayers, PL quenching in sulfonate-, phosphonate- and thiolate-based multilayers. PL quenching is accompanied by higher photoelectrochemical and photoconductivity responses. (literal)

Prodotto di

• Materiali per elettronica molecolare e optoelettronica (PM.P04.001.003) (Modulo)
• Istituto di scienze e tecnologie molecolari (ISTM) (Istituto)
• Materiali Polimerici Compositi e Nanostrutture per Optoelettronica Fotonica e relativi Dispositivi (PM.P04.001.002) (Modulo)
• Institute of Condensed Matter Chemistry and Energy Technologies (ICMATE) (Istituto)
• Nanostrutture funzionali su superfici elettrodiche (ET.P06.011.002) (Modulo)
• Istituto per lo studio delle macromolecole (ISMAC) (Istituto)

Autore CNR

• GIANNI ZOTTI (Unità di personale interno)
• ANNA BERLIN (Unità di personale interno)
• BARBARA VERCELLI (Unità di personale interno)
• UMBERTO GIOVANELLA (Unità di personale interno)

Incoming links:

Prodotto

• Istituto di scienze e tecnologie molecolari (ISTM) (Istituto)
• Institute of Condensed Matter Chemistry and Energy Technologies (ICMATE) (Istituto)
• Istituto per lo studio delle macromolecole (ISMAC) (Istituto)
• Nanostrutture funzionali su superfici elettrodiche (ET.P06.011.002) (Modulo)
• Materiali Polimerici Compositi e Nanostrutture per Optoelettronica Fotonica e relativi Dispositivi (PM.P04.001.002) (Modulo)
• Materiali per elettronica molecolare e optoelettronica (PM.P04.001.003) (Modulo)

Autore CNR di

• ANNA BERLIN (Unità di personale interno)
• BARBARA VERCELLI (Unità di personale interno)
• GIANNI ZOTTI (Unità di personale interno)
• UMBERTO GIOVANELLA (Unità di personale interno)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Chemistry of materials (Rivista)