A novel ruthenium-free TiO2 sensitizer consisting of di-p-tolylaminophenyl ethylenedioxythiophene and cyanoacrylate groups

Ke-Jian Jiang; Kazuhiro Manseki; You-hai Yu; Naruhiko Masaki; Jiang-Bin Xia; Lian-Ming Yang; Yan-lin Song; Shozo Yanagida

doi:10.1039/B906687J

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New Journal of Chemistry

Issue 9, 2009

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A novel ruthenium-free TiO₂ sensitizer consisting of di-p-tolylaminophenyl ethylenedioxythiophene and cyanoacrylate groups

Ke-Jian Jiang , Kazuhiro Manseki , You-hai Yu , Naruhiko Masaki , Jiang-Bin Xia , Lian-Ming Yang , Yan-lin Song and Shozo Yanagida

New J. Chem., 2009, 33, 1973-1977

DOI: 10.1039/B906687J
Received 02 Apr 2009, Accepted 28 May 2009
First published on the web 14 Jul 2009

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A novel ruthenium-free organic dye, 3-(5-(4-(di-p-tolylamino)styryl)-2,3-dihydrothieno[3,4-b][1,4]dioxin-7-yl)-2-cyanoacrylic acid (coded as H01), is synthesized in a short sequence. The dye is composed of a di(p-tolyl)phenylamino moiety as an electron donor, a cyanoacrylate moiety as an electron acceptor, and an ethylenedioxythiophene unit as the spacer to bridge the donor and the acceptor. The as-prepared H01 dye is employed as a sensitizer in a dye-sensitized nanocrystalline TiO₂ solar cell, and the short-circuit photocurrent density (J_sc), open-circuit voltage (V_oc), and fill factor (ff) of the device under AM 1.5 (100 mW cm⁻²) irradiation, are 15.22 mA cm⁻², 0.67 V, and 0.72, respectively, corresponding to an overall conversion efficiency (Eff) of 7.33%.

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Ke-Jian Jiang
Kazuhiro Manseki
You-hai Yu
Naruhiko Masaki
Jiang-Bin Xia
Lian-Ming Yang
Yan-lin Song
Shozo Yanagida

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New Journal of Chemistry

A novel ruthenium-free TiO₂ sensitizer consisting of di-p-tolylaminophenyl ethylenedioxythiophene and cyanoacrylate groups

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