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Nearly 100% internal quantum efficiency in undoped electroluminescent devices employing pure organic emitters.
Zhang, Qisheng; Tsang, Daniel; Kuwabara, Hirokazu; Hatae, Yasuhiro; Li, Bo; Takahashi, Takehiro; Lee, Sae Youn; Yasuda, Takuma; Adachi, Chihaya.
Affiliation
  • Zhang Q; Center for Organic Photonics and Electronics Research (OPERA), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan; JST, ERATO, Adachi Molecular Exciton Engineering Project c/o Center for Organic Photonics and Electronics Research (OPERA), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan.
Adv Mater ; 27(12): 2096-100, 2015 Mar 25.
Article in En | MEDLINE | ID: mdl-25678335
ABSTRACT
The design of efficient and concentration-insensitive metal-free thermally activateddelayed fluorescence (TADF) materials is reported. Blue and green organic light-emitting diodes (OLEDs) containing a hole-transport layer, an undoped TADF emissive layer, and an electron-transport layer achieve maximum external quantum efficiencies of 19%, which is comparable to the best doped OLEDs.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Adv Mater Journal subject: BIOFISICA / QUIMICA Year: 2015 Document type: Article Affiliation country: Japan
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Adv Mater Journal subject: BIOFISICA / QUIMICA Year: 2015 Document type: Article Affiliation country: Japan