Graphene-organic hybrids as processable, tunable platforms for pH-dependent photoemission, obtained by a new modular approach (Articolo in rivista)

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Label
  • Graphene-organic hybrids as processable, tunable platforms for pH-dependent photoemission, obtained by a new modular approach (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1039/c2jm33349j (literal)
Alternative label
  • Melucci, Manuela; Durso, Margherita, Zambianchi, Massimo; Treossi, Emanuele; Xia, Zhen-Yuan; Manet, Ilse; Giambastiani, Giuliano; Ortolani, Luca; Morandi, Vittorio; De Angelis, Filippo; Palermo, Vincenzo (2012)
    Graphene-organic hybrids as processable, tunable platforms for pH-dependent photoemission, obtained by a new modular approach
    in Journal of materials chemistry (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Melucci, Manuela; Durso, Margherita, Zambianchi, Massimo; Treossi, Emanuele; Xia, Zhen-Yuan; Manet, Ilse; Giambastiani, Giuliano; Ortolani, Luca; Morandi, Vittorio; De Angelis, Filippo; Palermo, Vincenzo (literal)
Pagina inizio
  • 18237 (literal)
Pagina fine
  • 18243 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://pubs.rsc.org/en/Content/ArticleLanding/2012/JM/C2JM33349J (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 22 (literal)
Rivista
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  • 7 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 35 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Istituto per la Sintesi Organica e la Fotoreattivita, Consiglio Nazionale ? delle Ricerche, via Gobetti 101, 40129 Bologna, Italy. E-mail: mmelucci@isof.cnr.it; palermo@isof.cnr.it Istituto di Chimica dei Composti OrganoMetallici, Consiglio Nazionale delle Ricerche, via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy Istituto per la Microelettronica e Microsistemi, Consiglio Nazionale delle Ricerche, via Gobetti 101, 40129 Bologna, Italy Istituto CNR di Scienze e Tecnologie Molecolari (CNR-ISTM), via Elce di Sotto 8, I-6123, Perugia, Italy Laboratorio MIST.E-R Bologna, via Gobetti 101, 40129 Bologna, Ital (literal)
Titolo
  • Graphene-organic hybrids as processable, tunable platforms for pH-dependent photoemission, obtained by a new modular approach (literal)
Abstract
  • We describe a new approach to attach organic dyes to graphene oxide (GO) sheets with high loading and minimal perturbation of the electronic and optical properties of the dye. The dye unit used (a pH-sensitive terthiophene) is grafted to GO using a new modular synthetic approach, passing through a C6-aminic linker which makes GO more soluble in different organic solvents and allows straightforward attachment at high yield not only of terthiophene but of many commercially available amino-reactive dyes. The covalent engraftment to GO does not perturb the absorption and emission properties of the dye, and in particular the pH sensing capability through amidic group reversible protonation. This approach can allow (i) high solubility of the GO intermediate in organic solvents, (ii) convenient coupling with commercial, stable amino-reactive dyes under mild conditions, (iii) easy control of the spacer length between the GO and oligothiophene dye and finally (iv) high (up to 5 wt%) dye functionalization loadings. (literal)
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