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Tunable electroluminescence and photoluminescence in phenylenevinylene‐naphthylenevinylene copolymers **
Author(s) -
Faraggi Enez Z.,
Chayet Haim,
Cohen Gil,
Neumann Ronny,
Avny Yain,
Davidov Dan
Publication year - 1995
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.19950070814
Subject(s) - photoluminescence , materials science , electroluminescence , copolymer , optoelectronics , band gap , diode , light emitting diode , photochemistry , green light , selectivity , blue light , nanotechnology , polymer , organic chemistry , catalysis , composite material , chemistry , layer (electronics)
Color tuning of the electro‐ and photoluminescence from naphthalenevinylene–PPV–based light‐emitting diodes between yellow‐green and red is reported. Band structure considerations are employed to explain that chemical selectivity and selective band‐gap tuning are observed in some of the copolymers studied but not in others. It is also found that light emission can be tuned by changing the thickness of the copolymer film in the LED.