News

2020-06-30
Reference Study [HLCT Materials] TPAAnPI

Xianhao Lv,a) Mizhen Sun,a) Lei Xu,a) Runzhe Wang,a) Huayi Zhou,a) Yuyu Pan,b) Shitong Zhang,c)
Qikun Sun,a) Shanfeng Xue,a) and Wenjun Yang,a)
 
a. Key Laboratory of Rubber-Plastics of the Ministry of Education/Shandong Province (QUST), School of Polymer Science & Engineering, Qingdao University of Science &Technology, 53-Zhengzhou Road, Qingdao 266042, P. R. China.
 
b. School of Petrochemical Engineering, Shenyang University of Technology, 30 Guanghua Street, Liaoyang, 111003, P. R. China
 
c. State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, 130012, P. R. China.
 
Reference: Chem. Sci., 2020,11, 5058-5065

Abstract

  • A twisting novel blue D-π-A molecule, TPAAnPI, involving the HLCT excited state was designed and synthesized.
  • A fabricated optimized non-doped Device II based on TPAAnPI exhibited a maximum EQE of 11.47% and showed a novel blue emission at 470 nm with CIE coordinates of (0.15, 0.22).
  • The EQE remained as high as 9.70% at the luminescence of 1000 cd m−2 with roll-off of only 15%.

Materials & Devices

Device: ITO/PEDOT:PSS (40 nm)/TCTA (30 nm)/TPAAnPI (20 nm)/TPBi (30 nm)/LiF (1 nm)/Al (100 nm)
 


*Fig.3(c) reference source: Chem. Sci., 2020,11, 5058-5065


TPAAnPI, HLCT, hybridized local, charge-transfer, Non-doped Blue OLED





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