세미나

Indoor Organic Photovoltaics: Optimal Cell Design Principles with Synergistic Parasitic Resistance Effect

Jae Won Shim

 

School of Electrical Engineering, Korea University, Seoul 02841, Republic of Korea

 (jwshim19@korea.ac.kr)

 

With the advent of autonomous low-powered indoor electronic devices such as wearable devices, or wireless sensor nodes for the Internet of Things (IoT), the need for new types of energy harvesting systems without further replacement or maintenance is increasing day by day. Among many candidates, organic photovoltaics (OPVs) have been thought as one of the most promising energy sources due to their optical, mechanical, and electrical properties such as tunable absorption range, mechanical flexibility, light in weight, etc. In this talk, our recent research work related to advances of the photovoltaic performance of OPVs for indoor operation (LED light) is presented. In particular, we maximized the device performance through the optimization of parasitic resistance effects associated with charge-collecting electrode, interlayers and photoactive layers of the OPVs. This talk discusses different types of strategies for the efficient indoor OPVs including un-doped ZnO films for transparent electrodes, polymer surface modification, ultra-thin ITO, oxide/metal/oxide (OMO) electrodes.