Three-Dimensional Structures Based on the Fusion of Chrysene and Spirobifluorene Chromophores for the Development of Blue OLEDs

Hayoon Lee, Hyocheol Jung, Seokwoo Kang, Jin Hyuck Heo, Sang Hyuk Im, Jongwook Park

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

A new deep-blue chromophore containing a three-dimensionally (3D) shaped CS core composed of fused chrysene and spirofluorene units is synthesized. A pair of m-terphenyl (TP) units is also substituted onto the CS core at two different sets of positions to form two additional compounds: CS-TPTP and TP-CS-TP. The TP-CS-TP compound showed the highest efficiency with an external quantum efficiency (EQE) of 3.05% and Commission Internationale de L'Eclairage coordinates (CIE) of (0.148, 0.098) corresponding to the emission of blue light. This approach for forming a new chromophore is expected to lead to the development of functional organic materials with excellent characteristics.

Original languageEnglish
Pages (from-to)2640-2646
Number of pages7
JournalJournal of Organic Chemistry
Volume83
Issue number5
DOIs
Publication statusPublished - 2018 Mar 2

ASJC Scopus subject areas

  • Organic Chemistry

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