Lifetime improvement of thermally activated delayed fluorescent organic light-emitting diodes

Ho Jung Lee, Kyung Hyung Lee, Jun Yeob Lee, Wan Pyo Hong, Ok Keun Song

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

The external quantum efficiency of thermally activated delayed fluorescent organic light-emitting diodes has been improved to the same level of phosphorescent organic light-emitting diodes. However, the lifetime of the thermally activated delayed fluorescent organic light-emitting diodes is not comparable to that of the phosphorescent organic light-emitting diodes. Therefore, the lifetime of the thermally activated delayed fluorescent devices needs to be extended In this work, the lifetime extending strategy of thermally activated delayed fluorescent organic light-emitting diodes from molecular design approach is proposed. The molecules with a chemical bond stabilizing molecular design and high reversed intersystem crossing rate were effective to extend the lifetime of the thermally activated delayed fluorescent organic light-emitting diodes.

Original languageEnglish
Title of host publicationDigest of Technical Papers - SID International Symposium
EditorsKelly Jean Fitzsimmons
PublisherJohn Wiley and Sons Inc
Pages462-465
Number of pages4
EditionBook 1
ISBN (Electronic)9781510896161, 9781510896161, 9781510896161
DOIs
StatePublished - 2019
EventSID Symposium, Seminar, and Exhibition 2019, Display Week 2019 - San Jose, United States
Duration: 12 May 201917 May 2019

Publication series

NameDigest of Technical Papers - SID International Symposium
NumberBook 1
Volume50
ISSN (Print)0097-966X
ISSN (Electronic)2168-0159

Conference

ConferenceSID Symposium, Seminar, and Exhibition 2019, Display Week 2019
Country/TerritoryUnited States
CitySan Jose
Period12/05/1917/05/19

Keywords

  • Efficiency
  • Lifetime
  • Thermally activated delayed fluorescence

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