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Ultraviolet electroluminescence from an organic light emitting diode
Author(s) -
Berggren Magnus,
Granströim Magnus,
Inganas Olle,
Andersson Mats
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.19950071105
Subject(s) - materials science , electroluminescence , ultraviolet , optoelectronics , diode , oled , light emitting diode , ultraviolet light , white light , oxadiazole , light emission , optics , nanotechnology , chemistry , physics , organic chemistry , layer (electronics)
The extension of the emission region or organic LEDs into the ultraviolet region is reported. Emission at 394 nm is achieved by modifying the geometry of a device based on poly(octylphenyl)bithiophene (PTOPT) and poly(octylphenyl)oxadiazole (PBD) which had previously been shown to emit white light. Through changing the geometry the red and green emission peaks have been suppressed and the UV band (from the PBD) enhanced.