CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
University of Chinese Academy of Sciences, Beijing, 100049, China.
Angew Chem Int Ed Engl. 2017 Jul 17;56(30):8818-8822. doi: 10.1002/anie.201704435. Epub 2017 Jun 23.
Aromatic-imide-based thermally activated delayed fluorescence (TADF) materials with a twisted donor-acceptor-donor skeleton were efficiently synthesized and exhibited excellent thermal stability and high photoluminescence quantum yields. The small ΔE value (<0.1 eV) along with the clear temperature-dependent delayed component of their transient photoluminescence (PL) spectra demonstrated their excellent TADF properties. Moreover, the performance of organic light-emitting diodes in which TADF materials AI-Cz and AI-TBCz were used as dopants were outstanding, with external quantum efficiencies up to 23.2 and 21.1 %, respectively.
具有扭曲给体-受体-给体骨架的基于芳香酰亚胺的热激活延迟荧光（TADF）材料被高效合成，并表现出优异的热稳定性和高光致发光量子产率。它们的瞬态光致发光（PL）光谱的小ΔE 值（<0.1 eV）和明显的温度依赖的延迟分量证明了它们具有优异的 TADF 性质。此外，以 TADF 材料 AI-Cz 和 AI-TBCz 作为掺杂剂的有机发光二极管的性能非常出色，其外量子效率分别高达 23.2%和 21.1%。
