Document Type

Journal Article

Department/Unit

Department of Physics

Title

Realization of ultra-high color stable hybrid white organic light-emitting diodes via sequential symmetrical doping in emissive layersz

Abstract

High performance three-color hybrid white organic light-emitting diode (WOLED) has been demonstrated by emissions from a fluorescent blue emitter 5,11-di(40-dimesitylboronphenyl) indolo[3,2-b]carbazole (DDBICZ), a phosphorescent yellow emitter bis(2-(3-trifluoromethyl-4-fluorophenyl)-4-methylquinolyl) (acetylacetonate)iridium(III) (Ir(ffpmq)2(acac)) and a phosphorescent red emitter bis(1-phenylisoquinoline) (acetylacetonate)iridium(III) (Ir(piq)2(acac)). The blue emitting DDBICZ in the device also acts as a host for Ir(ffpmq)2(acac) and Ir(piq)2(acac) dopants. The emissive layer in the DDBICZ-based hybrid WOLEDs consists of a sequential symmetric doping configuration for achieving high color stability, CIE color coordinates of (0.40, 0.41) and color rendering index of 86 over the brightness range from 10 cd/m2 to 10,000 cd/m2. The hybrid WOLEDs thus developed also possess a high lumious efficiency of 25.9 cd/A.

Publication Year

2016

Journal Title

Science of Advanced Materials

Volume number

8

Issue number

2

Publisher

American Scientific Publishers

First Page (page number)

401

Last Page (page number)

407

Referreed

1

DOI

10.1166/sam.2016.2501

ISSN (print)

19472935

Link to Publisher’s Edition

http://dx.doi.org/10.1166/sam.2016.2501

Keywords

COLOR RENDERING INDEX, COLOR STABILITY, HYBRID WOLED, WOLED

ISSN (electronic)

19472943

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