Efficiency enhancement of fluorescent blue organic light-emitting diodes using doped hole transport and emissive layers

Nam Ho Kim, You Hyun Kim, Ju An Yoon, Seung Il Yoo, Kok Wai CHEAH, Fu Rong ZHU, Woo Young Kim*

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

4 Citations (Scopus)

Abstract

The electroluminescent characteristics of blue organic light-emitting diodes (BOLEDs) fabricated with doped charge carrier transport layers are analyzed. The fluorescent blue dopant BCzVBi is doped in an emissive layer, hole transport layer (HTL) and electron transport layer (ETL), respectively, to optimize the probability of exciton generation in the BOLEDs. The luminance and luminous efficiency of BOLEDs made with BCzVBi-doped HTL and ETL increase by 22% and 17% from 11.683 cd/m2 at 8.5 V and 6.08 cd/A at 4.0 V to 14.264 cd/m2 at 8.5 V and 7.13 cd/A at 4.0 V while CIE coordinates of (0.15, 0.15) of both types of BOLEDs remained unchanged. The electron mobility of BCzVBi is estimated to be 1.02 × 10-5 cm2/Vs by TOF.

Original languageEnglish
Article number043001
JournalChinese Optics Letters
Volume14
Issue number4
DOIs
Publication statusPublished - 10 Apr 2016

Scopus Subject Areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'Efficiency enhancement of fluorescent blue organic light-emitting diodes using doped hole transport and emissive layers'. Together they form a unique fingerprint.

Cite this