Masaki Tanaka

Assistant Professor, Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology *Profile is at the time of the award.

2022Inamori Research GrantsScience & Engineering

Research topics
Exploring molecular dynamics inducing highly ordered dipole orientation
Organic semiconductor molecules exhibit a highly-ordered molecular orientation in a solid film, resulting in a high device performance. In this study, I reveal the mechanism of the molecular orientation to achieve further improvement of the device performance.


I am really grateful to the Inamori Research Grant for giving me the opportunity to study this subject. I will reveal the mechanism of the molecular orientation and realize high-performance organic electronics devices.

Outline of Research Achievments

Polar organic semiconductor molecules spontaneously form orientation polarization during a vacuum deposition process. This study developed novel pola molecules exhibiting a suraface potential growth rate over 200 mV/nm using a trifluoromethylphenyl unit to induce spontaneous orientation in vacuum deposited films. The strong spontaneous polarization originated from a large molecular dipole moment and a high glass transition temperature resulting ordered dipole orientations.

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