Reference Study [HLCT Materials] BBPA+DMPA
[HLCT Materials] 

Shuanglong Wang, Mengya Qiao, Zhonghua Ye, Dehai Dou, Minyu Chen, Yan Peng, Ying Shi,
Xuyong Yang, Lei Cui, Jiuyan Li, Chunju Li, Bin Wei, and Wai-Yeung Wong
Reference: iScience Volume 9, 30 November 2018, Pages 532-541


  • The doped blue materials BBPA and DMPA devices employing mCP as the host show a maximum EQE of 6.02% and 8.05% with a very-low-efficiency roll-off and deep-blue EL with CIE coordinates of (0.15, 0.03) and (0.15, 0.05), respectively.
  • The introduction of ADN and MBAn-(4)-F with twisted structure having high steric hindrance to prevent intermolecular aggregation and reduce luminescence quenching is beneficial for increasing the device performance without shifting the emission peak.
  • The resulting device employing ADN:5% BBPA and MBAn-(4)-F:5% BBPA displays deep-blue EL with CIE coordinates of (0.15, 0.06) and (0.15, 0.05), together with a high EQE of 8.67% and 10.27% and low roll-off at high brightness up to1,000 cd m2, respectively.

Materials & Devices

*Table2 reference source: Chem. Sci., 2020,11, 5058-5065

BBPA, DMPA, HLCT, hybridized local, charge-transfer, Blue OLED

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