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Electroluminescence and charge photogeneration in poly(9,9‐dihexadecylfluorene‐2,7‐diyl) and its blends
Author(s) -
Cimrová Věra,
Výprachtický Drahomír
Publication year - 2004
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200450831
Subject(s) - electroluminescence , materials science , light emitting diode , photoluminescence , polymer blend , phenylene , optoelectronics , polymer , poly(p phenylene) , photochemistry , polymer chemistry , composite material , chemistry , copolymer , layer (electronics)
Photoluminescence, electroluminescence (EL), charge photogeneration and transport were studied in poly(9,9‐dihexadecylfluorene‐2,7‐diyl) (PFC16), poly[(2,5‐dihexadecyl‐1,4‐phenylene)(1,4‐phenylene)] (PPPC16) and their blends. Blending of PFC16 with PPPC16 led to a significant improvement of the EL efficiency and stability compared with the devices fabricated from the neat polymers. Efficient blue and white light‐emitting devices (LEDs) were fabricated using the blends. The increase in the EL efficiency was attributed to modification of the charge injection, transport and recombination properties in the blend.