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- Title
Combining Charge-Transfer Pathways to Achieve Unique Thermally Activated Delayed Fluorescence Emitters for High-Performance Solution-Processed, Non-doped Blue OLEDs.
- Authors
Chen, Xu ‐ Lin; Jia, Ji ‐ Hui; Yu, Rongmin; Liao, Jian ‐ Zhen; Yang, Ming ‐ Xue; Lu, Can ‐ Zhong
- Abstract
Two efficient blue thermally activated delayed fluorescence compounds, B-oCz and B-oTC, composed of ortho-donor (D)-acceptor (A) arrangement were designed and synthesized. The significant intramolecular D-A interactions induce a combined charge transfer pathway and thus achieve small Δ EST and high efficiencies. The concentration quenching can be effectively inhibited in films of these compounds. The blue non-doped organic light emitting diodes (OLEDs) based on B-oTC prepared from solution processes shows record-high external quantum efficiency (EQE) of 19.1 %.
- Subjects
CHARGE transfer; FRONTIER orbitals; ELECTROLUMINESCENT devices; COLLISIONS (Nuclear physics); ORGANIC light emitting diodes
- Publication
Angewandte Chemie, 2017, Vol 129, Issue 47, p15202
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201709125