Dye-sensitized solar cell utilizing organic dyads containing triarylene conjugates
Resource
Tetrahedron 65 (24): 4726-4734
Journal
Tetrahedron
Pages
4726-4734
Date Issued
2009
Date
2009
Author(s)
Chang, Yuan Jay
Chow, Tahsin J.
Abstract
A series of organic dipolar compounds containing a donor (D), a bridge (B), and an acceptor (A), forming a D-B-A type of dyads, were synthesized by convenient methods and were utilized successfully on dye-sensitized solar cells. The central bridges were made of three linearly connected arylene groups, i.e., phenylenes or thiophenylenes. The donor groups were aromatic amines, i.e., either a diphenylamine or a naphthylphenylamine group. The acceptor group was a cyanoacrylic acid, which can be anchored onto the surface of TiO2 in a photovoltaic device. These devices performed remarkably well, with a typical quantum efficiency of 5-7%, and optimal incident photon to current conversion efficiency (IPCE) exceeding 80%. The devices made with a naphthylphenylamine donor group performed slightly better than those made with a diphenylamine donor group. Compounds containing a phenylene-thiophenylene-phenylene bridge group performed better than those with other kinds of triarylene linkages. Their photochemical behaviors were analyzed by using time-dependent density functional theory (TDDFT) models with the B3LYP functional. © 2009 Elsevier Ltd. All rights reserved.
Subjects
Charge transfer; Dye-sensitized solar cell; Light harvesting; Photovoltaic; Triarylene
SDGs
Other Subjects
acrylic acid derivative; aniline derivative; aromatic amine; benzene derivative; bridged compound; diphenylamine; dye; naphthyl group; organic compound; polycyclic aromatic hydrocarbon derivative; thiophene derivative; titanium dioxide; article; conjugate; density functional theory; device; dipole; molecular model; photochemistry; priority journal; synthesis; time
Type
journal article
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