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Organic Light‐Emitting Diodes Based on Poly(9,9‐dioctylfluorene‐ co ‐bithiophene) (F8T2)
Author(s) -
Levermore Peter A.,
Jin Rui,
Wang Xuhua,
de Mello John C.,
Bradley Donal D. C.
Publication year - 2009
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.200801260
Subject(s) - materials science , electroluminescence , oled , light emitting diode , optoelectronics , polyfluorene , green light , diode , polymer , light emission , blue light , nanotechnology , layer (electronics) , composite material
A study of the optical properties of poly(9,9‐dioctylfluorene‐ co ‐bithiophene) (F8T2) is reported, identifying this polymer as one that possesses a desirable combination of charge transport and light emission properties. The optical and morphological properties of a series of polymer blends with F8T2 dispersed in poly(9,9‐dioctylfluorene) (PFO) are described and almost pure‐green emission from light emitting diodes (LEDs) based thereon is demonstrated. High luminance green electroluminescence from LEDs using only a thin film of F8T2 for emission is also reported. The latter demonstration for a polymer previously primarily of interest for effective charge transport constitutes an important step in the development of emissive materials for applications where a union of efficient light emission and effective charge transport is required.