Electronic Processes in Carbon-Based Nanostructured Materials and Devices

Graphene and solution-processed organic (plastic) semiconductors combine unique electronic, photoelectronic and mechanical properties that opens an emerging field of exciting research at the interface between two conceptually different, but complementary types of nanostructured electronic materials. These novel heterobilayer hybrid nanocomposites bear great potential for self-powered buildings, remote electronic gadgets, health sensors and medical implants due to their unique electronic properties, in combination with low-cost processing, biocompatibility and inherent mechanical flexibility.

This talk will discuss our results on the development and understanding of novel carbon-based electronics and photovoltaics by applying a multidisciplinary approach at the interplay of cutting edge materials science, interface and device physics. The first part will be devoted to our achievements in the area of device physics through the fabrication and advanced characterization of organic bulk-heterojunction solar cells. Then, I will present our recent studies on temperature and light modulated doping effects and charge transport in graphene/ conjugated polyelectrolyte (CPE) or hybrid organic-inorganic perovksite heterobilayer nanocomposites. At the end of this talk I will explain the working principle of low-cost pencil-drawn energy harvesters on flexible substrates, called ionic-organic electronic ratchets.