Ultrapure Blue Thermally Activated Delayed Fluorescence Molecules: Efficient HOMO-LUMO Separation by the Multiple Resonance Effect

Ultrapure blue‐fluorescent molecules based on thermally activated delayed fluorescence are developed. Organic light‐emitting diode (OLED) devices employing the new emitters exhibit a deep blue emission at 467 nm with a full‐width at half‐maximum of 28 nm, CIE coordinates of (0.12, 0.13), and an inte...

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Published inAdvanced materials (Weinheim) Vol. 28; no. 14; pp. 2777 - 2781
Main Authors Hatakeyama, Takuji, Shiren, Kazushi, Nakajima, Kiichi, Nomura, Shintaro, Nakatsuka, Soichiro, Kinoshita, Keisuke, Ni, Jingping, Ono, Yohei, Ikuta, Toshiaki
Format Journal Article
LanguageEnglish
Published Germany Blackwell Publishing Ltd 13.04.2016
Subjects
Activated
Devices
Emission
Fluorescence
full-width at half-maximum
Organic light emitting diodes
organoboron
Quantum efficiency
resonance effect
Separation
thermally activated delayed fluorescence
thermally activated delayed fluorescence
full-width at half-maximum
resonance effect
organic light-emitting diodes
organoboron
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Summary:Ultrapure blue‐fluorescent molecules based on thermally activated delayed fluorescence are developed. Organic light‐emitting diode (OLED) devices employing the new emitters exhibit a deep blue emission at 467 nm with a full‐width at half‐maximum of 28 nm, CIE coordinates of (0.12, 0.13), and an internal quantum efficiency of ≈100%, which represent record‐setting performance for blue OLED devices.
Bibliography:ark:/67375/WNG-HLSBLKNG-1
ArticleID:ADMA201505491
istex:A3E0B04CF99D5756296BE971032AD69F6BCB90A3
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201505491