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Yuya Ishii

Affiliation Department of Electrical and Electronic Information Engineering
Title Asistant Professor
Fields of Research Functional polymer/Organic electronics
Degree Doctor of Material Science(Japan Advanced Institute of Science and Technology)
Academic Societies The Japan Society of Applied Physics / The Materials Research Society
E-mail yishii@ee
Please append ".tut.ac.jp" to the end of the address above.
Laboratory website URL http://www.photon.ee.tut.ac.jp/index.html
Researcher information URL Researcher information

Research

Nanofibers, which are fibers with diameters less than 1 μm, are attracting attention as base materials for gas or liquid filters, light-weight and transparent electrodes, biological scaffolds, etc. We are focusing on developing a novel optoelectronic device composed of nanofibers with doping organic semiconductor materials* to the fibers.

*Organic semiconductor materials: Organic materials which show semiconducting properties. They are used for Organic Light Emitting Diodes (OLED), Organic Photovoltaics (OPV), Organic Field-Effect Transistor (OFET), etc.

Theme1:Development of optoelectronic devices using polymer nanofibers

Overview
Light-emitting polymer nanofibers

Plastic nanofibers are very small and light-weight. Besides, they have potential for developing unique optoelectronic properties because the fibers have diameters equivalent to wavelength of visible light or less. We are focusing on investigating light-emitting properties inside the fibers doping organic semiconductor materials. Moreover, we are developing a novel optoelectronic device composed of nanofibers.

Selected publications and works

◆Y. Ishii, K. Omori, S. Satozono, M. Fukuda,“Dye-doped submicron fiber waveguides composed of hole- and electron-transport materials” Organic Electronics, 41, 215-220 (2017).
◆Y. Ishii, S. Satozono, K. Omori, M. Fukuda,“Waveguiding properties in dye-doped submicron poly(N-vinylcarbazole) fibers” Journal of Polymer Science Part B: Polymer Physics, 54, 1237-1244 (2016).
◆Y. Ishii, S. Satozono, R. Kaminose, M. Fukuda, "Origin of high propagation loss in electrospun polymer nanofibers" APL Materials, 2, 066104 (2014).
◆Yuya Ishii and Hideyuki Murata, JP Patent. No. 5360528,Dec. 2013.

Keywords

Nnaofiber, Organic electronics, Electrospinning, Polymer, Waveguide

Title of class

Experimental Practice for Electrical, Electronic and Information Engineering I
Experimental Practice for Electrical, Electronic and Information Engineering II


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