Tetraphenylpyrrolo[3,2-b]pyrroles: Synthesis, Thermal, Optical, Electrochemical Properties and Photovoltaic Applications

We reported two tetraphenylpyrrolo[3,2-b]pyrroles in which the central core is functionalized by electron-rich functions: methoxy and di(4-methoxyphenyl)aminyl. The targeted compounds have good solubility in common organic solvents, high thermal stability and glass forming capacity. The optical and electrochemical properties of these compounds suggest use in a diverse range of applications. When utilized as the hole transporting layer of the planar perovskite solar cells, power conversion efficiencies ranging from 12.8 to 14.5% were obtained.

Automated summary

Two tetraphenylpyrrolo[3,2-b]pyrrole derivatives with electron-rich functionalization, methoxy and di(4-methoxyphenyl)aminyl groups on the central core, were reported. These compounds exhibited good solubility in common organic solvents, high thermal stability, and glass forming capacity, making them suitable for various applications. When utilized as the hole transporting layer in planar perovskite solar cells, power conversion efficiencies ranging from 12.8% to 14.5% were achieved.