Issue 42, 2015

Bithiophene-based polybenzofulvene derivatives with high stacking and hole mobility

Abstract

Four new benzofulvene derivatives bearing bithiophene chromophores at two different key positions of the phenylindene scaffold were prepared in order to evaluate the role of different chromophores in the optoelectronic features of polybenzofulvene derivatives. The results of the photophysical studies showed that the optical properties of the newly-synthesized bithiophene-functionalized polymers were affected by both the polymer enchainment and the substitution topology of the monomeric units. On the other hand, the hole-mobility appeared to be affected to a lesser extent, but the best performances were obtained in poly-6-HBT-BF3k showing the strongest bithiophene side chain packing. This work demonstrates that the optoelectronic properties of polybenzofulvene derivatives can be optimized by a targeted chemical design such as side chain engineering.

Graphical abstract: Bithiophene-based polybenzofulvene derivatives with high stacking and hole mobility

Supplementary files

Article information

Article type
Paper
Submitted
11 Jun 2015
Accepted
05 Aug 2015
First published
07 Aug 2015

Polym. Chem., 2015,6, 7377-7388

Bithiophene-based polybenzofulvene derivatives with high stacking and hole mobility

A. Cappelli, V. Razzano, M. Paolino, G. Grisci, G. Giuliani, A. Donati, R. Mendichi, F. Samperi, S. Battiato, A. C. Boccia, A. Mura, G. Bongiovanni, W. Mróz and C. Botta, Polym. Chem., 2015, 6, 7377 DOI: 10.1039/C5PY00904A

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