Synthesis and Photovoltaic Applications of a 4, 4′-Spirobi [cyclopenta [2, 1-b; 3, 4-b′] dithiophene]-bridged donor/acceptor dye

…, S Orlandi, M Cavazzini, D Minudri, L Macor…

Index: Pozzi, Gianluca; Orlandi, Simonetta; Cavazzini, Marco; Minudri, Daniela; Macor, Lorena; Otero, Luis; Fungo, Fernando Organic Letters, 2013 , vol. 15, # 18 p. 4642 - 4645

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Citation Number: 14

Abstract

A new donor/acceptor (D–A) spiro dye (SCPDT1) featuring two bithiophene units, connected through an sp3-hybridized carbon atom, was prepared by a multistep synthetic sequence involving the convenient assembly of the spiro system under mild catalytic conditions. The photocurrent spectrum of dye-sensitized solar cells incorporating SCPDT1 covers the spectral region ranging from 350 to 700 nm and reaches a wide maximum of∼ 80% in the ...