Developments on the Studies of Diketopyrrolopyrrole

Abstract

Diketopyrrolopyrroles (DPPs) are pigments consisting of a condensed lactam core flanked by aromatic rings. DPPs have been widely explored in various electronic devices and fluorescence probe because of their high photostability and fluorescence quantum yields and conjugated structure. As a typical electron-deficient core, DPP can attach electron-donating substitutes to form a donor-acceptor-donor (D-A-D) structure, which enhances NIR-absorption and semiconductive property.