Highly Induced Photoluminescense Indenopyrazine Derivatives

Abstract

We designed and synthesized new blue deep-blue photoluminescense materials base on indenopyrazine core. The synthesized materials are meta-positioned phenyl ring substituted by methyl (DMP-EIP), trifluoromethyl (TFDMP-EIP) and phenyl groups (DPP-EIP). These compounds also showed deep-blue PL_max values, 440 ∼ 447 nm, in film state. But PL intensity in film state with same thickness was over about 8 ∼ 10 times higher in TFDMP-EIP than DMP-EIP and DPP-EIP. TFDMP-EIP also showed about stronger PL intensity than DMP-EIP and DPP-EIP in PL spectrum and absolute quantum efficiency data.

Keywords:

• Indenopyrazine
• photoluminescence
• blue emitting material
• core-side group
• OLED
• absolute quantum efficiency

Acknowledgment

This research was supported by a grant (Catholic Univ.) from the Fundamental R&D Program for Core Technology of Materials funded by the Ministry of Knowledge Economy (MKE), Republic of Korea. This work was supported by Mid-career Researcher Program through NRF grant funded by the MEST (No. 20100000422).