Synthesis and electroluminescent properties of a novel red-emitting phosphorescent iridium complex

Document Type

Article

Publication Date

2-1-2012

Abstract

A novel ancillary ligand (2-(1-hydroxy-naphthyl)-benzothiozolato) (HNBT) and the corresponding red emitting phosphorescent iridium (III) complex, Ir(ppy) 2 (NBT) with 2-pheny-lphridine (ppy) as first ligand are designed and synthesized. Saturated red-emitting electrophospho-rescent devices using Ir(ppy) 2(NBT) as emission center are fabricated. The thermal, photophysical, and electroluminescent properties of Ir(ppy) 2(NBT) are investigated in detail. It is noteworthy that the emission spectrum shape of complex Ir(ppy) 2(NBT) is similar to Gauss, which has only one emission peak centralized 614 nm with a full-width at half-maximum of 65 nm. The optimized device exhibits a maximum brightness of 6400 cd/m 2 and the peak current efficiency is 4.53 cd/A.

Publication Source (Journal or Book title)

Faguang Xuebao/Chinese Journal of Luminescence

First Page

166

Last Page

170

This document is currently not available here.

Share

COinS