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White light emission from a blue polymer light emitting diode combined with YAG : C e 3+ nanoparticles
Author(s) -
Oliva Jorge,
De la Rosa Elder,
DiazTorres Luis,
Zakhidov Anvar
Publication year - 2014
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201330346
Subject(s) - white light , nanoparticle , materials science , diode , luminance , green light , optoelectronics , light emitting diode , optics , polymer , blue light , nanotechnology , physics , composite material
It is reported the white light emission from a hybrid polymer light emitting diode (HyPLED) which has a film of YAG:Ce 3+ nanoparticles. This white light is produced due to the combination of the blue light generated from a PLED and the green‐yellow light coming from YAG:Ce 3+ nanoparticles. This white light has CIE (International Commission on Illumination) coordinates of (0.31, 0.35) which is near of the ideal coordinate of (0.33, 0.33). The hybrid device presents a turn on voltage of 4 V, as well as a maximum luminance and efficiency of 266 cd m −2 and 0.34 cd A −1 (at 9 V), respectively. Finally, it was possible to tune the color emission from green to bluish‐white by changing the operation voltage.