DataVXJournal of Information DisplayPaper
journal article·2022-10-02Open access

Solution-processed sky-blue phosphorescent organic light-emitting diodes based on 2-(5,9-dioxa-13b-boranaphtho[3,2,1-de]anthracene-8-yl)-4-(trimethylsilyl)pyridine chelated iridium complex

Yeong Heon Jeong, Chul Woong Joo, Hyein Jeong, Jonghee Lee, Yun-Hi Kim

Journal of Information Display· Volume 23· Issue 4
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Source abstract

Abstract

A new 2-(5,9-dioxa-13b-boranaphtho[3,2,1-de]anthracene-8-yl)-4-(trimethylsilyl)pyridine-based iridium complex was synthesized for efficient solution-processed sky-blue phosphorescent organic light-emitting diodes (PhOLEDs). The effect of dioxaboranaphthoanthracene instead of phenyl with the electron-accepting group, as well as the bulky pyridine with the trimethylsilyl group, on the ligand was investigated. The new dopant was found to have an extremely high photoluminescence quantum yield of 94% when doped in an emissive layer. As a result, the solution-processed blue PhOLED consisting of a simple structure without any interlayer exhibited remarkable light-emitting performance with an external quantum efficiency of 8.93% and a current efficiency of 23.56 cd/A.
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Research context

OpenAlex topics: Organic Light-Emitting Diodes Research · Luminescence and Fluorescent Materials · Catalytic Cross-Coupling Reactions

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemistry and ERI, Gyeongsang National University, Jinju, Republic of Korea

Reality Device Research Division, Electronics and Telecommunications Research Institute, Daejeon, Republic of Korea

School of Chemical Engineering, Sungkyunkwan University, Suwon, Republic of Korea

Samsung Display Co, Ltd #1, Samsung-ro, Giheung-gu, Republic of Korea

Department of Creative Convergence Engineering, Hanbat National University, Daejeon, Republic of Korea

Funding

National Research Foundation of Korea · Electronics and Telecommunications Research Institute

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