Novel Organic Solar Cells using Surface Complexes of Titanium Oxide and Dicyanomethylene Compounds

Jun-ichi Fujisawa

PRESTO Researcher, JST, Research Center for Advanced Science and Technology, The University of Tokyo

Abstract

My research subject is the development of novel organic solar cells based on a novel principle using the surface complexes formed between titanium oxide (TiO₂) and dicyanomethylene compounds (TCNX). For this solar cell, charge separation occurs by direct electron injection due to the interfacial charge-transfer transitions between surface bound TCNX molecules to the conduction band of TiO₂. My research is focused on control of the physical properties of the solar cell and enhancement of the energy conversion efficiency toward achieving efficient photoelectric conversion.