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Molecular Design of Efficient Organic D-A-pi-A Dye Featuring Triphenylamine as Donor Fragment for Application in Dye-Sensitized Solar Cells
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SYSNO ASEP 0485898 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Molecular 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. 494-502Poč.str. 9 s. Jazyk dok. eng - angličtina Země vyd. DE - Německo Klíč. slova Dye-Sensitized Solar Cells ; Electrolytes ; Donor-acceptor systems Vědní obor RIV CG - Elektrochemie Obor OECD Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis) CEP GA13-07724S GA ČR - Grantová agentura ČR Institucionální podpora UFCH-W - RVO:61388955 UT WOS 000423205200017 EID SCOPUS 85040742238 DOI 10.1002/cssc.201701949 Anotace A 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. Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2019
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