News

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

Xinhua Ouyang,a) Xiang-Long Li,b) Yongqi Bai,a) Dongbo Mi,a) Ziyi Ge,a) and Shi-Jian Su,b)
 
a) Ningbo Institute of Materials Technology & Engineering (NIMTE), Chinese Academy of Sciences (CAS), Ningbo, 315201, P. R. China.
 
b) State Key Laboratory of Luminescent Materials and Devices (South China University of Technology), Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology, Guangzhou, 510641, P. R. China.
 
Reference: RSC Adv., 2015, 5, 32298-32306

Abstract

  • The device uses a new deep-blue materials DPTPA that shows a saturated deep-blue emission solely from DPTPA (peaked at 438 nm) and CIE coordinates of (0.15, 0.09).
  • For the EL efficiencies, the device exhibits impressive maximum EQE, CE and PE of 3.81%, 3.45 cd A-1 and 3.52 lmW-1, respectively. 
  • And, at the brightness of 1000 cd m-2, these efficiencies still remain to be 3.40%, 3.07 cd A-1 and 1.88 lm W-1.

Materials & Devices

Device: ITO/HAT-CN (5 nm)/NPB (40 nm)/TCTA (5 nm)/DPTPA (20 m)/TPBI (40 nm)/LiF (1 nm)/Al



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

DPTPA, HLCT, hybridized local, charge-transfer, Blue OLED


 





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