有机发光二极管
分子内力
材料科学
光化学
猝灭(荧光)
光电子学
量子效率
电荷(物理)
荧光
兴奋剂
接受者
二极管
化学
纳米技术
立体化学
光学
物理
量子力学
图层(电子)
凝聚态物理
作者
Xulin Chen,Ji‐Hui Jia,Rongmin Yu,Jian‐Zhen Liao,Mingxue Yang,Can‐Zhong Lu
标识
DOI:10.1002/anie.201709125
摘要
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 E ST 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 %.
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