Počet záznamů: 1  

Molecular Design of Efficient Organic D-A-pi-A Dye Featuring Triphenylamine as Donor Fragment for Application in Dye-Sensitized Solar Cells

  1. 1.
    SYSNO ASEP0485898
    Druh ASEPJ - Článek v odborném periodiku
    Zařazení RIVJ - Článek v odborném periodiku
    Poddruh JČlánek ve WOS
    NázevMolecular Design of Efficient Organic D-A-pi-A Dye Featuring Triphenylamine as Donor Fragment for Application in Dye-Sensitized Solar Cells
    Tvůrce(i) Ferdowsi, P. (IR)
    Saygili, Y. (CH)
    Zhang, W. (CH)
    Edvinson, T. (SE)
    Kavan, Ladislav (UFCH-W) RID, ORCID
    Mokhtari, J. (IR)
    Zakeerudin, S. M. (CH)
    Grätzel, M. (CH)
    Hagfeldt, A. (CH)
    Zdroj.dok.ChemSusChem. - : Wiley - ISSN 1864-5631
    Roč. 11, č. 2 (2018), s. 494-502
    Poč.str.9 s.
    Jazyk dok.eng - angličtina
    Země vyd.DE - Německo
    Klíč. slovaDye-Sensitized Solar Cells ; Electrolytes ; Donor-acceptor systems
    Vědní obor RIVCG - Elektrochemie
    Obor OECDElectrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)
    CEPGA13-07724S GA ČR - Grantová agentura ČR
    Institucionální podporaUFCH-W - RVO:61388955
    UT WOS000423205200017
    EID SCOPUS85040742238
    DOI10.1002/cssc.201701949
    AnotaceA metal-free organic sensitizer, suitable for the application in dye-sensitized solar cells (DSSCs), has been designed, synthesized and characterized both experimentally and theoretically. The structure of the novel donor-acceptor-π-bridge-acceptor (D-A-π-A) dye incorporates a triphenylamine (TPA) segment and 4-(benzo[c][1,2,5]thiadiazol-4-ylethynyl)benzoic acid (BTEBA). The triphenylamine unit is widely used as an electron donor for photosensitizers, owing to its nonplanar molecular configuration and excellent electron-donating capability, whereas 4-(benzo[c][1,2,5]thiadiazol-4-ylethynyl)benzoic acid is used as an electron acceptor unit. The influences of I3 -/I-, [Co(bpy)3]3+/2+ and [Cu(tmby)2]2+/+ (tmby=4,4',6,6'-tetramethyl-2,2'-bipyridine) as redox electrolytes on the DSSC device performance were also investigated. The maximal monochromatic incident photon-to-current conversion efficiency (IPCE) reached 81% and the solar light to electrical energy conversion efficiency of devices with [Cu(tmby)2]2+/+ reached 7.15%. The devices with [Co(bpy)3]3+/2+ and I3 -/I- electrolytes gave efficiencies of 5.22% and 6.14%, respectively. The lowest device performance with a [Co(bpy)3]3+/2+-based electrolyte is attributed to increased charge recombination.
    PracovištěÚstav fyzikální chemie J.Heyrovského
    KontaktMichaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196
    Rok sběru2019
Počet záznamů: 1  

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