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Synthesis and photovoltaic performance of dibenzofulvene-based organic sensitizers for DSSC
- Source :
- Tetrahedron (Oxf., Online) 72 (2016): 5788–5797. doi:10.1016/j.tet.2016.08.006, info:cnr-pdr/source/autori:Capodilupo A.-L.; Giannuzzi R.; Corrente G.A.; De Marco L.; Fabiano E.; Cardone A.; Gigli G.; Ciccarella G./titolo:Synthesis and photovoltaic performance of dibenzofulvene-based organic sensitizers for DSSC/doi:10.1016%2Fj.tet.2016.08.006/rivista:Tetrahedron (Oxf., Online)/anno:2016/pagina_da:5788/pagina_a:5797/intervallo_pagine:5788–5797/volume:72
- Publication Year :
- 2016
- Publisher :
- Elsevier BV, 2016.
-
Abstract
- Three novel 2D-π-A metal-free organic dyes TK 7 – 9 containing a dibenzofulvene ( DBF ) linked to two thiophene units as the π-bridge, diarylamines with and without alkoxy chains as donor groups and the cyanoacrylic acid moiety as the acceptor and anchoring group were synthesized. The new dyes TK were characterized by optical and electrochemical measurements and density functional theory calculations and were used as sensitizers in liquid dye-sensitized solar cells. The effects of alkoxy-functionalization of donor moiety and of hexyl chain insertion onto one thienyl ring of π-linker on dye properties and performances were investigated. The results discover the dye TK7 , bearing two simple diphenylamine groups without alkoxy chains, exhibits the best behavior in terms of light absorption and cell performance (PCE of 7.9% and photovoltaic parameters of J sc of 17.82 mA cm −2 , V oc of 670 mV and FF of 0.66). Lower power conversion efficiencies of 6.3% and 6.1% were found for TK8 and TK9 , respectively, as a consequence of the presence of the alkoxy chains.
- Subjects :
- Dye-sensitized solar cells Organic dyes Dibenzofulvene Donoreacceptor system Solar energy
Organic dyes
02 engineering and technology
Dye-sensitized solar cells
010402 general chemistry
Electrochemistry
Photochemistry
01 natural sciences
Biochemistry
chemistry.chemical_compound
Solar energy
Drug Discovery
Thiophene
Moiety
Donor-acceptor system
Dibenzofulvene
Organic Chemistry
Diphenylamine
021001 nanoscience & nanotechnology
Acceptor
0104 chemical sciences
Dye-sensitized solar cell
chemistry
Alkoxy group
Density functional theory
0210 nano-technology
Subjects
Details
- ISSN :
- 00404020
- Volume :
- 72
- Database :
- OpenAIRE
- Journal :
- Tetrahedron
- Accession number :
- edsair.doi.dedup.....90421532b52bc12a2b7950e79f028bba