V-shaped hole-transporting TPD dimers containing Tröger’s base core

Journal article

V-shaped hole transporting materials based on N,N,N′,N′-tetraarylbenzidine (TPD)-type moieties conjoined by Tröger’s base core were synthesized and investigated. These hole transporting materials were obtained by a three-step synthetic method, are fully amorphous, and demonstrate high glass transition temperatures and good thermal and morphological stability. Relatively high charge mobility (up to 0.036 cm2 V –1 s–1) was measured in these hole transporting materials, exceeding that of corresponding methyl and methoxy substituted TPD analogues without TB core by more than 2 orders of magnitude. Determined ionization potential and charge mobility values permit use of the synthesized compounds as hole transporting materials in fabrication of perovskite solar cells.

Authors: Braukyla, T; Sakai, N; Daskeviciene, M; Jankauskas, V; Kamarauskas, E

• Alternative title: Synthesis and investigation of V-shaped hole-transporting materials containing Tröger`s base core and TPD-type branches
• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: American Chemical Society
• Journal: Journal of Physical Chemistry C
• Volume: 121
• Issue: 19
• Pages: 10267-10274
• Publication date: 2017-04-28
• Acceptance date: 2017-04-28
• DOI: 10.1021/acs.jpcc.6b11880
• EISSN: 1932-7455
• ISSN: 1932-7447
• Keywords: Journal Article