Laboratory of Photoelectrics and Photobioelectrics


Control of dynamics of molecules and molecular systems is extremely important to create novel functions in materials and biological systems. The use of light along with application of electric field as a tool to give external stimuli has many advantages which originate from the characteristics of interaction among photon, molecules and electric field.



    N. Ohta has completed his PhD from Tohoku University, Sendai, Japan, and postdoctoral studies from Marquette University in Milwaukee, USA. Until March 2015, he was Professor at Hokkaido University, Sapporo, Japan. He is now Chair Professor at National Yang Ming Chiao Tung University, Hsinchu, Taiwan and Professor Emeritus at Hokkaido University.

    He is interesting in electric field effects on structure, dynamics, and function of photoexcited molecules and molecular systems including optoelectronic materials, molecular conductors, ionic conductors, and living cells. He has focused to the Photoelectric and Photobioelelctric Research, where novel materials functions and novel biological function are quested by photoirradiation and application of electric field. In the materials research, electroabsorption and electrophotoluminescence spectra, i.e., electric field effects on absorption and photoluminescence spectra, time-resolved photoluminescence decay with and without application of electric field and time-resolved photocurrent have been measured. In the research of biological system, he has focused on autofluorescence lifetime microscopy to examine intracellular function and its ultrashort pulsed electric field effect with special attention to the difference between non-malignant normal cells and cancerous cells.

Chair Professor Nobuhiro Ohta

太田信廣 講座教授

太田信廣教授在日本仙台東北大學獲得博士學位,以及美國Marquette University in Milwaukee進行博士後研究。




Charactrization of endogenous fluorescence in non-small lung cancerous cells: A comparison with non-malignant lung normal cells

J. Biophotonics. 13, e201960210-1~13 (2020)

Enhanced Dissociation of Hot Excitons with an Applied Electric Field under Low-power Photoexcitation in Two-dimensional Perovskite Quantum Wells

J. Phys. Chem. Lett. 10, 4752-4757 (2019)

Differentiation between normal and cancer cells with autofluorescence lifetime microscopy and nanosecond pulsed electric field effects


SPIE Proc. 10890, 108901F-1~8 (2019).