当前位置：
X-MOL 学术
›
ACS Mater. Lett.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Pentacyclic Ladder-Heteraborin Emitters Exhibiting High-Efficiency Blue Thermally Activated Delayed Fluorescence with an Ultrashort Emission Lifetime
ACS Materials Letters ( IF 9.6 ) Pub Date : 2019-11-22 , DOI: 10.1021/acsmaterialslett.9b00433 Tomohiro Agou 1 , Kyohei Matsuo 2 , Rei Kawano 1 , In Seob Park 2 , Takaaki Hosoya 1 , Hiroki Fukumoto 1 , Toshio Kubota 1 , Yoshiyuki Mizuhata 3 , Norihiro Tokitoh 3 , Takuma Yasuda 2
ACS Materials Letters ( IF 9.6 ) Pub Date : 2019-11-22 , DOI: 10.1021/acsmaterialslett.9b00433 Tomohiro Agou 1 , Kyohei Matsuo 2 , Rei Kawano 1 , In Seob Park 2 , Takaaki Hosoya 1 , Hiroki Fukumoto 1 , Toshio Kubota 1 , Yoshiyuki Mizuhata 3 , Norihiro Tokitoh 3 , Takuma Yasuda 2
Affiliation
|
As one of the three primary colors, blue is significant for display and lighting applications and the development of blue-emitting molecules with high quantum efficiency, and color purity for organic light-emitting diodes (OLEDs) remains a key challenge. Herein, a new series of blue thermally activated delayed fluorescence (TADF) materials featuring π-extended ladder-oxaborin and thiaborin acceptors has been developed. Steady-state and time-resolved photophysical measurements revealed the advantages of the ladder-oxaborin emitter, including a tiny singlet–triplet energy splitting of 10 meV, an ideal photoluminescence quantum yield of 100%, and an ultrashort TADF lifetime of 780 ns. The TADF-OLEDs incorporating the ladder-oxaborin (deep-blue) and thiaborin (sky-blue) emitters achieved significantly high external electroluminescence quantum efficiencies of up to 20.1% and 25.9%, respectively, accompanied by suppressed efficiency roll-offs.
中文翻译：
具有超短发射寿命的高效蓝色热激活延迟荧光的五环梯形-杂合蛋白发射体
作为三种原色之一，蓝色对于显示和照明应用具有重要意义，开发具有高量子效率的蓝色发光分子以及有机发光二极管（OLED）的色纯度仍然是关键的挑战。在此，已经开发了一系列新的以π-延伸的梯形-氧杂蛋白和硫硼烷受体为特征的蓝色热激活延迟荧光（TADF）材料。稳态和时间分辨的光物理测量揭示了梯形-氧杂蛋白发射体的优点，包括微小的单重态-三重态能量分裂为10 meV，理想的光致发光量子产率为100％，TADF的超短寿命为780 ns。
更新日期：2019-11-28
中文翻译：
具有超短发射寿命的高效蓝色热激活延迟荧光的五环梯形-杂合蛋白发射体
作为三种原色之一，蓝色对于显示和照明应用具有重要意义，开发具有高量子效率的蓝色发光分子以及有机发光二极管（OLED）的色纯度仍然是关键的挑战。在此，已经开发了一系列新的以π-延伸的梯形-氧杂蛋白和硫硼烷受体为特征的蓝色热激活延迟荧光（TADF）材料。稳态和时间分辨的光物理测量揭示了梯形-氧杂蛋白发射体的优点，包括微小的单重态-三重态能量分裂为10 meV，理想的光致发光量子产率为100％，TADF的超短寿命为780 ns。
京公网安备 11010802027423号