Triplet emitter doped exciton harvesting layer for improved efficiency and long lifetime in blue phosphorescent organic light-emitting diodes

Jeong Min Choi; Jun Yeob Lee

doi:10.1016/j.synthmet.2016.07.033

Triplet emitter doped exciton harvesting layer for improved efficiency and long lifetime in blue phosphorescent organic light-emitting diodes

Jeong Min Choi, Jun Yeob Lee

Department of Chemical Engineering

Sungkyunkwan University

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Efficiency and lifetime improvement of blue phosphorescent organic light-emitting diodes (PHOLEDs) was achieved by introducing a triplet emitter doped exciton harvesting layer. A green triplet emitter doped electron transport layer was the exciton harvesting layer of the blue PHOLEDs, which doubled the lifetime and enhanced the efficiency of the blue PHOLEDs compared with a common electron transport layer. Blocking of triplet exciton quenching of the blue triplet emitter by the exciton harvesting layer was proposed as the main mechanism of improved efficiency and lifetime.

Original language	English
Pages (from-to)	573-577
Number of pages	5
Journal	Synthetic Metals
Volume	220
DOIs	https://doi.org/10.1016/j.synthmet.2016.07.033
State	Published - 1 Oct 2016

Keywords

Blue device
Efficiency
Exciton blocking layer
Exciton harvesting
Lifetime

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10.1016/j.synthmet.2016.07.033

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title = "Triplet emitter doped exciton harvesting layer for improved efficiency and long lifetime in blue phosphorescent organic light-emitting diodes",

abstract = "Efficiency and lifetime improvement of blue phosphorescent organic light-emitting diodes (PHOLEDs) was achieved by introducing a triplet emitter doped exciton harvesting layer. A green triplet emitter doped electron transport layer was the exciton harvesting layer of the blue PHOLEDs, which doubled the lifetime and enhanced the efficiency of the blue PHOLEDs compared with a common electron transport layer. Blocking of triplet exciton quenching of the blue triplet emitter by the exciton harvesting layer was proposed as the main mechanism of improved efficiency and lifetime.",

keywords = "Blue device, Efficiency, Exciton blocking layer, Exciton harvesting, Lifetime",

author = "Choi, \{Jeong Min\} and Lee, \{Jun Yeob\}",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2016",

month = oct,

day = "1",

doi = "10.1016/j.synthmet.2016.07.033",

language = "English",

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journal = "Synthetic Metals",

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TY - JOUR

T1 - Triplet emitter doped exciton harvesting layer for improved efficiency and long lifetime in blue phosphorescent organic light-emitting diodes

AU - Choi, Jeong Min

AU - Lee, Jun Yeob

PY - 2016/10/1

Y1 - 2016/10/1

N2 - Efficiency and lifetime improvement of blue phosphorescent organic light-emitting diodes (PHOLEDs) was achieved by introducing a triplet emitter doped exciton harvesting layer. A green triplet emitter doped electron transport layer was the exciton harvesting layer of the blue PHOLEDs, which doubled the lifetime and enhanced the efficiency of the blue PHOLEDs compared with a common electron transport layer. Blocking of triplet exciton quenching of the blue triplet emitter by the exciton harvesting layer was proposed as the main mechanism of improved efficiency and lifetime.

AB - Efficiency and lifetime improvement of blue phosphorescent organic light-emitting diodes (PHOLEDs) was achieved by introducing a triplet emitter doped exciton harvesting layer. A green triplet emitter doped electron transport layer was the exciton harvesting layer of the blue PHOLEDs, which doubled the lifetime and enhanced the efficiency of the blue PHOLEDs compared with a common electron transport layer. Blocking of triplet exciton quenching of the blue triplet emitter by the exciton harvesting layer was proposed as the main mechanism of improved efficiency and lifetime.

KW - Blue device

KW - Efficiency

KW - Exciton blocking layer

KW - Exciton harvesting

KW - Lifetime

UR - https://www.scopus.com/pages/publications/84982728081

U2 - 10.1016/j.synthmet.2016.07.033

DO - 10.1016/j.synthmet.2016.07.033

M3 - Article

AN - SCOPUS:84982728081

SN - 0379-6779

VL - 220

SP - 573

EP - 577

JO - Synthetic Metals

JF - Synthetic Metals

ER -

Triplet emitter doped exciton harvesting layer for improved efficiency and long lifetime in blue phosphorescent organic light-emitting diodes

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Keywords

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