Diketopyrrolopyrrolebased
Diketopyrrolopyrrole-based (DPP-based) materials refer to organic compounds and polymers that incorporate the diketopyrrolopyrrole core as a key chromophore. The DPP unit is a planar, electron-deficient heterocycle comprising two pyrrole rings fused to diketone functionalities, typically stabilized as imide derivatives. As an electron-accepting building block, DPP-based structures enable strong, tunable π-conjugation and intense visible-light absorption, making them popular in organic electronics.
Design and structure: In DPP-based materials, the imide positions are commonly functionalized, and various N-substituents or
Applications: DPP-based compounds are widely explored as acceptor units in donor–acceptor small molecules and as building
Synthesis and properties: The DPP core is typically prepared from condensation of appropriately functionalized succinimide and
Overall, DPP-based materials offer versatile, tunable electronic properties that support advances in organic electronics, with ongoing