Spatially Mapping Charge Carrier Density and Defects in Organic Electronics Using Modulation-Amplified Reflectance Spectroscopy

摘要

Semiconducting polymers have enabled the development of a remarkable new class of optoelectronic devices, including flexible solar cells, roll-to-roll electronics, and organic transistors. However, charge transport in conjugated molecules is a complex phenomenon that remains an open scientific question with a range of mechanistic theories, slowing the commercial development of organic optoelectronics. Development of charge-carrier visualization tools for organic semiconductors is essential both for fundamental explorations of carrier transport in organic thin films and for smartly engineering high efficiency organic devices.