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Highly Efficient Blue Electroluminescence from Poly(phenylene ethynylene) via Energy Transfer from a Hole‐Transport Matrix
Author(s) -
Breen C. A.,
Tischler J. R.,
Bulović V.,
Swager T. M.
Publication year - 2005
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.200500185
Subject(s) - electroluminescence , materials science , oled , energy transfer , phenylene , light emitting diode , optoelectronics , diode , polystyrene , nanotechnology , polymer , engineering physics , composite material , layer (electronics) , engineering
Blue poly(phenylene ethynylene) (PPE) electroluminescence (EL, see Figure) is observed in a hybrid organic light‐emitting diode (OLED) with Commission Internationale de l'Eclairage coordinates of ( x = 0.17; y = 0.20). Energy transfer from a hole‐transport host to polystyrene‐grafted PPEs is utilized to improve the poor LED characteristics of traditional PPE‐based systems.