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Efficient blue‐light emitting devices from conjugated polymer blends
Author(s) -
Birgerson Jonas,
Kaeriyama Koji,
Barta Piotr,
Bröms Per,
Fahlman Mats,
Granlund Thomas,
Salaneck William R.
Publication year - 1996
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.19960081207
Subject(s) - materials science , polymer , conjugated system , optoelectronics , blue light , polymer blend , quantum efficiency , composite material , copolymer
A polymer light‐emitting device with an external quantum efficiency of 2% , one of the highest values in polymer‐based devices reported to date, had been fabricated from a blend of PDHPT (see Figure) and PDPP (poly(2,5‐diheptyl‐2′,5′‐dipentoxybiphenylene)). The optical properties of the polymers and the device are presented. A particularly important point is the processability of the active media.