A star-shaped triphenylamine π-conjugated system with internal charge-transfer as donor material for hetero-junction solar cells

A Cravino, S Roquet, P Leriche, O Alévêque…

Index: Cravino, Antonio; Roquet, Sophie; Leriche, Philippe; Aleveque, Olivier; Frere, Pierre; Roncali, Jean Chemical Communications, 2006 , # 13 p. 1416 - 1418

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Citation Number: 48

Abstract

We now report preliminary results on a star-shaped tris[4-(2-thienyl)phenyl]amine core modified by peripheral electron-withdrawing dicyanovinyl groups (1) and its use as donor material for the realization of hetero-junction solar cells. We show that the creation of an intramolecular charge-transfer (ICT) leads simultaneously to an extension of the spectral response and to an increase of the open-circuit voltage of the resulting solar cells.