A new donor-acceptor-donor polyfluorene copolymer with balanced electron and hole mobility
Artikel i vetenskaplig tidskrift, 2007

A new alternating polyfluorene copolymer poly[2,7-(9,9-dioctylfluoren)-alt-5,5-(5',8'-di-2-thienyl-(2',3'-bis-(3''-octyloxyphenyl)-quinoxaline))] (APFO-15), which has electron donor-acceptor-donor units in between the fluorene units, is synthesized and characterized. This polymer has a strong absorption and emission in the visible range of the solar spectrum. Its electroluminescence and photolumin escence emissions extend from about 560 to 900 nm. Moreover, solar cells with efficiencies in excess of 3.5 % have been realized from blends of APFO-15 and an electron acceptor mol., a mathanofullerene [6,6]-phenyl-C61-butyric acid Me ester (PCBM). It has also been obsd. that electron and hole transport is balanced both in the pure polymer phase and in polymer/PCBM bulk heterojunction films, which makes this material quite attractive for applications in opto-electronic devices. [on SciFinder (R)]


Abay Gadisa

Wendimagegn Mammo

Chalmers, Kemi- och bioteknik, Polymerteknologi

L. Mattias Andersson

Shimelis Admassie

Fengling Zhang

Mats Andersson

Chalmers, Kemi- och bioteknik, Polymerteknologi

Olle Inganaes

Adv. Funct. Mater. FIELD Full Journal Title:Advanced Functional Materials

Vol. 17 18 3836-3842



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