Unlimited water-soluble white emitter with two-photon absorption

Abstract

An unlimited water-soluble white emitter with two-photon absorption has been designed and synthesized. Water solubility has strongly hindered the ability and application of white emitter with two-photon absorption (TPA) materials. To overcome this shortcoming, during the course of synthesis, the copolymer was prepared using the isocyanate and ligand esterification reaction. To test the performance of the product, a series of characterizations were implemented. New copolymer exhibits strong NIR absorption, low band gap and good thermal stability. Particularly, the copolymer demonstrates perfect water-solubility, two-photon absorption and the possibility to be a white emitter. These characters may significantly broaden the possibility of using TPA materials for display.