Effect of 4-biphenyl groups on the charge transport and photovoltaic properties of arylamine based push–pull systems. (21st May 2020)

• Record Type: Journal Article
• Authors: Marqués, Pablo Simón; Andrés Castán, José María; Josse, Pierre; Blais, Martin; Habibi, Amir Hossein; Ramirez, Ivan; Walzer, Karsten; Roncali, Jean; Blanchard, Philippe; Cabanetos, Clément
• Is Part Of: New journal of chemistry. Volume 44:Number 27(2020)
• Page Start: 11441
• Page End: 11447
• Publication Date: 2020-05-21
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/d0nj02019b
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : The synthesis of two N, N -bis(4-biphenylyl)aniline (BPA) based push–pull is reported herein. Evaluation as donor materials in all-small-molecule planar-heterojunction organic solar cells lead to impressive fill factor (>73%) and promising power conversion efficiencies. Abstract : Two push–pull derivatives based on a N, N -bis(4-biphenylyl)aniline (BPA) donor block connected to a dicyanovinyl accepting moiety by thienyl and bithienyl π-conjugated spacers have been synthesized and characterized. All-small-molecule planar-heterojunction organic solar cells show promising power conversion efficiencies and impressive fill factor (>73%) correlated with the high hole-mobility induced by the BPA moiety.