Highly Efficient OLEDs

2Highly Emissive d¹⁰ Metal Complexes as TADF Emitters with Versatile Structures and Photophysical Properties

Koichi Nozaki and Munetaka Iwamura

University of Toyama, Graduate School of Science and Engineering, 3190 Gofuku, Toyama, 930‐8555, Japan

2.1 Introduction

In the past few decades, luminescent metal complexes have been intensively studied because of their unique photophysical properties such as long‐lived phosphorescent states with high emission quantum yields [1–4]. The search for luminescent metal complexes containing heavy metals such as Ir(III) and Pt(II) has recently intensified. This was a consequence of the demonstration that phosphorescent emitters possess advantages over conventional fluorescent emitters, when developing organic ...