학술논문
Photophysical and photovoltaic properties of a PPV type copolymer containing alternated fluorene and thiophene units
Document Type
Original Paper
Author
Source
Journal of Polymer Research. March 2012 19(3):1-9
Subject
Language
English
ISSN
1022-9760
1572-8935
1572-8935
Abstract
The synthesis and photophysical characterization of a PPV-type copolymer containing a fluorene derivative alternated with thiophene units is presented: poly(9,9’-dioctylfluorene-thiophene) (LAPPS29). Photophysical studies demonstrated that in the solid state only preformed ground state aggregates are responsible for exciton formation. These aggregates are formed with a wide range of size distribution. The emission from isolated segments is quenched either by resonant energy transfer, or by migration processes. Also, the main photovoltaic parameters are discussed in connection with the photophysical behavior.