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A new donor-acceptor-donor polyfluorene copolymer with balanced electron and hole mobility

Abay Gadisa ; Wendimagegn Mammo (Institutionen för kemi- och bioteknik, Polymerteknologi) ; L. Mattias Andersson ; Shimelis Admassie ; Fengling Zhang ; Mats R. Andersson (Institutionen för kemi- och bioteknik, Polymerteknologi) ; Olle Inganaes
Adv. Funct. Mater. FIELD Full Journal Title:Advanced Functional Materials Vol. 17 (2007), 18, p. 3836-3842.
[Artikel, refereegranskad vetenskaplig]

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)]



Denna post skapades 2008-01-15. Senast ändrad 2008-01-21.
CPL Pubid: 66823

 

Institutioner (Chalmers)

Institutionen för kemi- och bioteknik, Polymerteknologi (2005-2014)

Ämnesområden

Polymerkemi

Chalmers infrastruktur