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P‐79: High Color Purity White‐Light Organic Light‐Emitting Diodes Based on Dual Doped Configuration
Author(s) -
Chen ShihFang,
Wang ChingWu
Publication year - 2003
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.1832327
Subject(s) - oled , materials science , optoelectronics , doping , anthracene , diode , layer (electronics) , green light , light emitting diode , blue light , optics , chemistry , photochemistry , nanotechnology , physics
We have fabricated a triple‐wavelength white‐light organic light‐emitting diode (OLED) by a dual doped technique, providing a BczVBi doped Anthracene layer for blue emission as well as a 4‐Dicyanomethylene‐2‐methyl‐6‐[2‐(2, 3, 6, 7‐tetra‐hydro‐1H, 5H‐benzo[ij]‐quinolizin‐8‐yl)vinyl]‐4H‐pyran (DCM2) doped Alq 3 layer for red emission, combining an undoped Alq 3 layer for green emission. Evidence showed that by adopting the device configuration constituted by a blue emission layer of Anthracene:3%BczVBi, a red emission layer of Alq 3 :0.25%DCM2, and a green emission layer of undoped Alq 3 , a stable and high color purity white‐light OLED could be realized.