9-(10-phenylanthracen-9-yl)-Benzo[b]Fluoreno[3,4-d] Thiophene Derivatives for Blue Organic Light-Emitting Diodes

Beomsu Jang; Giwoong Han; Kiju Kim; Hakjun Lee; Youngkwan Kim; Seungsoo Yoon

doi:10.1166/jnn.2021.19231

9-(10-phenylanthracen-9-yl)-Benzo[b]Fluoreno[3,4-d] Thiophene Derivatives for Blue Organic Light-Emitting Diodes

J Nanosci Nanotechnol. 2021 Jul 1;21(7):3914-3918. doi: 10.1166/jnn.2021.19231.

Authors

Beomsu Jang¹, Giwoong Han¹, Kiju Kim², Hakjun Lee², Youngkwan Kim², Seungsoo Yoon¹

Affiliations

¹ Department of Chemistry, Sungkyunkwan University, Suwon, 440-746, Korea.
² Department of Information Display, Hongik University, Seoul, 121-791, Korea.

PMID: 33715716
DOI: 10.1166/jnn.2021.19231

Abstract

In this study, two blue fluorescence materials using phenylanthracene-substituted fluorene derivatives were synthesized and characterized for organic light-emitting diodes (OLEDs). To study their electroluminescent properties, OLED devices were fabricated using these two materials as emissive layer (EML). A device using 7,7-diphenyl-9-(10-phenylanthracen-9-yl)-7H-benzo[b]fluoreno[3,4-d]thiophene in emitting layer showed the highest value of EQE value which is 3.51%. It also showed the luminance efficiency of 3.22 cd/A and power efficiency of 2.89 lm/W with the CIE coordinates (0.15, 0.09).