Rigid conjugated twisted truxene dimers and trimers as electron acceptors

• Verfasst von: Zhang, Gang [VerfasserIn]
• Verfasst von: Lami, Vincent [VerfasserIn]
• Verfasst von: Rominger, Frank [VerfasserIn]
• Verfasst von: Vaynzof, Yana [VerfasserIn]
• Verfasst von: Mastalerz, Michael [VerfasserIn]
• Titel: Rigid conjugated twisted truxene dimers and trimers as electron acceptors
• Verf.angabe: Gang Zhang, Vincent Lami, Frank Rominger, Yana Vaynzof, and Michael Mastalerz
• E-Jahr: 2016
• Jahr: 18 February 2016
• Umfang: 5 S.
• Teil: volume:55
• Teil: year:2016
• Teil: number:12
• Teil: pages:3977-3981
• Teil: extent:5
• Fussnoten: Gesehen am 04.10.2021
• Titel Quelle: Enthalten in: Angewandte Chemie / International edition
• Ort Quelle: Weinheim : Wiley-VCH, 1962
• Jahr Quelle: 2016
• Band/Heft Quelle: 55(2016), 12, Seite 3977-3981
• ISSN Quelle: 1521-3773
• DOI: doi:10.1002/anie.201511532
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: conjugation
• Sach-SW: dimerization
• Sach-SW: electron acceptors
• Sach-SW: helicity
• Sach-SW: truxenes
• K10plus-PPN: 1772285285

Abstract

A new class of rigid twisted truxenone oligomers with an enlarged π backbone has been established by oxidative dimerization reactions. The resulting extended conjugated systems have large extinction coefficients and low-lying LUMO levels and show good solubility in common organic solvents, thus making them attractive compounds as new electron acceptors in organic electronics. Their suitability as electron acceptors has been demonstrated in bulk-heterojunction organic solar cells with poly(4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophenediyl) (PTB7) as the donor material.