Chemistry Letters
Online ISSN : 1348-0715
Print ISSN : 0366-7022
Letter
Structure and Photovoltaic Properties of (E)-2-Cyano-3-[4-(diphenylamino)phenyl]acrylic Acid Substituted by tert-Butyl Groups
Katsuhiko OnoTomoya YamaguchiMasaaki Tomura
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2010 Volume 39 Issue 8 Pages 864-866

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Abstract

(E)-3-{4-[Bis(4-tert-butylphenyl)amino]phenyl}-2-cyanoacrylic acid and its related compounds were synthesized by the Knoevenagel condensation of the corresponding 4-aminobenzaldehydes with cyanoacetic acid. Cyclic voltammetry measurements showed that these organic dyes exhibited reversible oxidation waves. The tert-butyl substituents also decreased molecular stacking in the crystals, thus affecting the photovoltaic properties of the dyes. A solar cell using the tert-butyl-substituted dye exhibited higher performance than that for the analog without tert-butyl group substitution.

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© 2010 The Chemical Society of Japan
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