Spiro-configured bifluorenes: Highly efficient emitter for UV organic light-emitting device and host material for red electrophosphorescence

Ken Tsung Wong*, Yuan Li Liao, Yu Ting Lin, Hai-Ching Su, Chung Chih Wu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

115 Scopus citations

Abstract

(Chemical Equation Presented) Remarkable UV OLED devices using novel spiro-configured bifluorenes as UV emitters have been successfully achieved with external quantum efficiencies up to 2.6-3.1% and emission wavelengths as short as 370 nm. In addition, these large-gap materials have been shown to be effective hosts for red phosphorescent emitters in phosphorescent OLEDs. This result represents the first example that pure hydrocarbon molecules can serve as an efficient host for red electrophosphorescence devices.

Original languageEnglish
Pages (from-to)5131-5134
Number of pages4
JournalOrganic Letters
Volume7
Issue number23
DOIs
StatePublished - 10 Nov 2005

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