Published June 28, 2015 | Version v1
Journal article Metadata-only

Color stable white phosphorescent organic light emitting diodes with red emissive electron transport layer

Creators

  • 1. Department of Green Energy & Semiconductor Engineering, Hoseo University, Asan 336-795 (Korea, Republic of)
  • 2. Department of Information Display, Hongik University, Seoul 121-791 (Korea, Republic of)
  • 3. Department of Engineering Physics, McMaster University, Hamilton, Ontario L8S 4L7 (Canada)

Description

We analyzed the performance of multi-emissive white phosphorescent organic light-emitting diodes (PHOLEDs) in relation to various red emitting sites of hole and electron transport layers (HTL and ETL). The shift of the recombination zone producing stable white emission in PHOLEDs was utilized as luminance was increased with red emission in its electron transport layer. Multi-emissive white PHOLEDs including the red light emitting electron transport layer yielded maximum external quantum efficiency of 17.4% with CIE color coordinates (−0.030, +0.001) shifting only from 1000 to 10 000 cd/m2. Additionally, we observed a reduction of energy loss in the white PHOLED via Ir(piq)3 as phosphorescent red dopant in electron transport layer

Additional details

Identifiers

DOI
10.1063/1.4923048;

Publishing Information

Journal Title
Journal of Applied Physics
Journal Volume
117
Journal Issue
24
Journal Page Range
p. 245503-245503.6
ISSN
0021-8979
CODEN
JAPIAU

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
47060811
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
COLOR; EMISSION; ENERGY LOSSES; HOLES; LAYERS; LIGHT EMITTING DIODES; PERFORMANCE; QUANTUM EFFICIENCY; RECOMBINATION; VISIBLE RADIATION
Descriptors DEC
EFFICIENCY; ELECTROMAGNETIC RADIATION; LOSSES; OPTICAL PROPERTIES; ORGANOLEPTIC PROPERTIES; PHYSICAL PROPERTIES; RADIATIONS; SEMICONDUCTOR DEVICES; SEMICONDUCTOR DIODES

Optional Information

Notes
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