Fully Bridged Triphenylamine Derivatives as Color-Tunable Thermally Activated Delayed Fluorescence Emitters.

Sheng-Nan ZouChen-Chen PengSheng-Yi YangYang-Kun QuYou-Jun YuXing ChenZuo-Quan Jiang Liang-Sheng Liao

Published in: Organic letters (2021)

Three emissive bridged-triphenylamine derivatives are designed and synthesized by incorporating carbon (DQAO), oxygen (OQAO), and sulfur (SQAO) atoms with two carbonyl groups. The fully bridged geometry and unique frontier molecular orbital distribution reveal its potential as narrowband thermally activated delayed fluorescence emitters. DQAO-, OQAO-, and SQAO-based organic light-emitting diodes exhibit the maximum external quantum efficiency (EQEmax) of 15.2%, 20.3%, and 17.8% for blue, green, and yellow, respectively.

Keyphrases

light emitting
energy transfer
single molecule
single cell
quantum dots
gene expression
water soluble
dna methylation