Precious metal-free organic small molecule luminophores that exhibit room temperature phosphorescence

Abstract

Phosphorescent compounds have attracted many scientists as versatile materials in the fields of analytical sciences, bio-imaging, chemical sensing, data encryption/protection technology, and organic light-emitting diodes. However, it is generally difficult to attain phosphorescence at room temperature from organic luminophores that do not contain precious metals such as iridium and platinum. In view of scarcity and expensiveness of precious metals, creation of precious metal-free organic phosphors is highly desired. This chapter reviews the recent researches on the design, characterization, and applications of precious metal-free luminophores showing efficient aggregation/crystallization-induced phosphorescence at room temperature.