Organic light emitting diode with uniform luminance distribution and enhanced efficiency via random embossing structure

Keunsoo Lee, Jonghee Lee, Chul Woong Joo, Joo Yeon Kim, Doo Hee Cho, Jeong Ik Lee, Hye Yong Chu, Jaehyun Moon, Byeong Kwon Ju

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Using the lateral phases separation of a binary immiscible polymer blend, we have fabricated a random embossing structure (RES). The RES was investigated as a potential structure for organic light-emitting diode (OLED) light extraction. Our RES yields uniform light extraction in a broad angle (0°∼70°) range with spectral stability. Blue phosphorescence OLEDs equipped with the RES showed an enhancement of 20% in external quantum efficiency (EQE)and spectral stability within Δx,y < 0.01 in a viewing angle range of 0°∼70°. Our RES provides a new and practical approach for achieving enhanced efficiency and spectral stability of OLEDs.

Original languageEnglish
Pages (from-to)Q56-Q59
JournalECS Solid State Letters
Volume3
Issue number11
DOIs
Publication statusPublished - 2014

Fingerprint

Organic light emitting diodes (OLED)
Luminance
Phosphorescence
Polymer blends
Quantum efficiency
Phase separation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

Cite this

Organic light emitting diode with uniform luminance distribution and enhanced efficiency via random embossing structure. / Lee, Keunsoo; Lee, Jonghee; Joo, Chul Woong; Kim, Joo Yeon; Cho, Doo Hee; Lee, Jeong Ik; Chu, Hye Yong; Moon, Jaehyun; Ju, Byeong Kwon.

In: ECS Solid State Letters, Vol. 3, No. 11, 2014, p. Q56-Q59.

Research output: Contribution to journalArticle

Lee, Keunsoo ; Lee, Jonghee ; Joo, Chul Woong ; Kim, Joo Yeon ; Cho, Doo Hee ; Lee, Jeong Ik ; Chu, Hye Yong ; Moon, Jaehyun ; Ju, Byeong Kwon. / Organic light emitting diode with uniform luminance distribution and enhanced efficiency via random embossing structure. In: ECS Solid State Letters. 2014 ; Vol. 3, No. 11. pp. Q56-Q59.
@article{5d784d13774a4f5b8ea9d86fb8b268d4,
title = "Organic light emitting diode with uniform luminance distribution and enhanced efficiency via random embossing structure",
abstract = "Using the lateral phases separation of a binary immiscible polymer blend, we have fabricated a random embossing structure (RES). The RES was investigated as a potential structure for organic light-emitting diode (OLED) light extraction. Our RES yields uniform light extraction in a broad angle (0°∼70°) range with spectral stability. Blue phosphorescence OLEDs equipped with the RES showed an enhancement of 20{\%} in external quantum efficiency (EQE)and spectral stability within Δx,y < 0.01 in a viewing angle range of 0°∼70°. Our RES provides a new and practical approach for achieving enhanced efficiency and spectral stability of OLEDs.",
author = "Keunsoo Lee and Jonghee Lee and Joo, {Chul Woong} and Kim, {Joo Yeon} and Cho, {Doo Hee} and Lee, {Jeong Ik} and Chu, {Hye Yong} and Jaehyun Moon and Ju, {Byeong Kwon}",
year = "2014",
doi = "10.1149/2.0051411ssl",
language = "English",
volume = "3",
pages = "Q56--Q59",
journal = "ECS Solid State Letters",
issn = "2162-8742",
publisher = "The Electrochemical Society",
number = "11",

}

TY - JOUR

T1 - Organic light emitting diode with uniform luminance distribution and enhanced efficiency via random embossing structure

AU - Lee, Keunsoo

AU - Lee, Jonghee

AU - Joo, Chul Woong

AU - Kim, Joo Yeon

AU - Cho, Doo Hee

AU - Lee, Jeong Ik

AU - Chu, Hye Yong

AU - Moon, Jaehyun

AU - Ju, Byeong Kwon

PY - 2014

Y1 - 2014

N2 - Using the lateral phases separation of a binary immiscible polymer blend, we have fabricated a random embossing structure (RES). The RES was investigated as a potential structure for organic light-emitting diode (OLED) light extraction. Our RES yields uniform light extraction in a broad angle (0°∼70°) range with spectral stability. Blue phosphorescence OLEDs equipped with the RES showed an enhancement of 20% in external quantum efficiency (EQE)and spectral stability within Δx,y < 0.01 in a viewing angle range of 0°∼70°. Our RES provides a new and practical approach for achieving enhanced efficiency and spectral stability of OLEDs.

AB - Using the lateral phases separation of a binary immiscible polymer blend, we have fabricated a random embossing structure (RES). The RES was investigated as a potential structure for organic light-emitting diode (OLED) light extraction. Our RES yields uniform light extraction in a broad angle (0°∼70°) range with spectral stability. Blue phosphorescence OLEDs equipped with the RES showed an enhancement of 20% in external quantum efficiency (EQE)and spectral stability within Δx,y < 0.01 in a viewing angle range of 0°∼70°. Our RES provides a new and practical approach for achieving enhanced efficiency and spectral stability of OLEDs.

UR - http://www.scopus.com/inward/record.url?scp=84924020346&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84924020346&partnerID=8YFLogxK

U2 - 10.1149/2.0051411ssl

DO - 10.1149/2.0051411ssl

M3 - Article

AN - SCOPUS:84924020346

VL - 3

SP - Q56-Q59

JO - ECS Solid State Letters

JF - ECS Solid State Letters

SN - 2162-8742

IS - 11

ER -