Organic electronics and optics. Experimental research on organic electronic devices, such as solar cells, and nanostructure/crystallinity control of organic thin films.
Research
Research outline
We have been studied topics below, in the field of "organic semiconductor electronics".
1) Organic semiconductor devices (photovoltaics, transistors, diodes)
2) Structure control of organic semiconductor thin films, growth of organic crystals
3) Electronic state control of organic semiconductors Especially in the above, we are focusing on mechanism and performance of organic photovoltaic cells. Organic semiconductors, such as an ingredient of paint, have potentially high carrier mobility and ideal semiconductor characteristics when purified and crystallized. To exert these potentials in inevitably complex structure of organic photovoltaics, I will establish fabrication method of crystalline nesting structure of organic semiconductors with free-scale in nm-?m, and study on relationship of phenomena which appear in such system to physical laws. Here, I utilize an original method “co-evaporant induced crystallization”, where liquid molecules are introduced during vacuum deposition of organic thin films. Although this method was invented for organic photovoltaics, this method can be useful for crystallization of other films. Thus, I will study on the basis of this method, in addition to the study of organic photovoltaic cells.
