Analysis of electron-transport function on organic solar-cell substrate using electron spin coherence measurments

Yasuhiro Kobori

Professor, Department of Chemistry, Graduate School of Science, Kobe University

Abstract

The aim of this study is to establish a novel method to characterize electron-transport properties of the surfaces and the interfaces to efficiently generate the nanometer-separated electron-hole pairs in the dye-sensitized solar cells and in the organic thin-film solar cells. Using the time-resolved electron paramagnetic resonance spectroscopy, effects of the electron spin coherences on the spin states of the photoinduced charge-separated states will be measured in the substrates. In the inhomogeneous molecular environments of the substrates, the exchange interactions of the primary photoinduced charge-separated states will be determined for evaluations of the efficient photon-electron conversions at the molecular level.