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Issue 22, 2016
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A study of oligothiophene–acceptor dyes in p-type dye-sensitized solar cells

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Abstract

Two new dyes, E1 and E2, equipped with triphenylamine as the electron donor, oligothiophene as the linker and different electron acceptor groups, have been designed and synthesized as photosensitizers for p-type dye-sensitized solar cells (p-DSCs). A systematic study of the effect of molecular structures on the observed photophysical properties, the electron/hole recombination process, the overall performance and the interfacial charge separation was carried out. Transient absorption spectroscopy (TAS) shows that the E1 dye with a napthoilene-1,2-benzimidazole (NBI) unit as the acceptor has a longer lifetime in the reduced state than the E2 dye with a malononitrile subunit on the NiO surface.

Graphical abstract: A study of oligothiophene–acceptor dyes in p-type dye-sensitized solar cells

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Supplementary files

Article information


Submitted
09 Dec 2015
Accepted
27 Jan 2016
First published
01 Feb 2016

RSC Adv., 2016,6, 18165-18177
Article type
Paper

A study of oligothiophene–acceptor dyes in p-type dye-sensitized solar cells

E. Sheibani, L. Zhang, P. Liu, B. Xu, E. Mijangos, G. Boschloo, A. Hagfeldt, L. Hammarström, L. Kloo and H. Tian, RSC Adv., 2016, 6, 18165
DOI: 10.1039/C5RA26310G

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