Profiles and Activities : National University Corporation Fukushima University


Kimihiko Saito(Professor)
Affiliated Specialty Division Department of Renewable Energy
Specialized Field of Study Photovoltaics
Final Academic Background Tokyo Institute of Technology, Interdisciplinary Graduate School of Science and Engineering, Department of Innovative and Engineered Materials
Academic Degree Doctor of Engineering(Tokyo Institute of Technology)

Courses In Charge

Endowed Chair in Renewable Energy
Renewable energy
I’m in charge of the solar energy in the lecture of renewable energy. The wind and solar energy become popular rapidly in the world by the Feed-in Tariff, and it especially promotes the installation of solar energy rapidly and explosively in Japan. Furthermore, Fukushima prefecture targets the balance of energy between the demand and the generation by renewable energy at around 2040. Now it is very common to see the photovoltaic power systems on the house-roof and in an area in the town and village. In my lecture, not only the mechanism of photovoltaic power generation but also the problems derived from its expansion of installation is referred and the future of solar energy is discussed.
Advanced lecture on photovoltaic engineering
Unlike other power generating system whose electricity is produced by the rotating machine, photovoltaics generate the electricity by the photoelectric effect (photoconduction) in semiconductor. Therefore, its industry consists of production of cells and modules, of construction and operation of systems and of those reuses and recycling, and is required further lowering of power generating cost to compete other conventional ones. In this lecture, these scientific and engineering fundamentals and the activities for promoting these efficiencies and for lowering these costs are explicated. Furthermore, the present situation of energy policy and the expansion policy for renewable energy are also referred to discuss the future of solar energy from the view point of technology and energy market.

Main Research

Research on advanced solar cells
Research and development for the further achievement of efficiency and of lowering cost of solar cells especially made from the silicon material and for those new uses by substrate slimming etc. are implemented with other laboratories.
Research related to solar energy system
Simple method for the evaluation of fault and degradation of the photovoltaic power systems is under development. Furthermore, novel application of the independent power supply system by photovoltaics to the ICT field and so on is developed with industries etc.

Recent Writings, etc.

1. Takagishi H, Noge H, Saito K, Kondo M, Fabrication of interdigitated back-contact silicon heterojunction solar cells on a 53 µm-thick crystalline silicon substrate by using the optimized inkjet printing method for etching mask formation, Jpn. J. Appl. Phys., 56, 040308 (2017)
2. Saito K, Higuchi N, Yamazaki J, Yoshino D, Kondo M, Measurement for Expected Energy Generation of PV Power System by PV Mini-Module, IEEJ Transactions on Power and Energy, Vol.136 No.11 pp.846–847
3. 高岸秀行,野毛宏,斉藤公彦,近藤道雄,インクジェット印刷を用いた結晶シリコン太陽電池の作製技術,ケミカルエンジニヤリング, 61巻 No.8 pp.48-53 (2016)
4. Noge H, Saito K, Sato A, Kaneko T, Kondo M, Two-dimensional simulation of interdigitated back contact silicon heterojunction solar cells having overlapped p/i and n/i a-Si:H layers, Jpn. J. Appl. Phys., 54, 08KD17 (2015)
5. Matsui T, Maejima K, Bidiville A, Sai H, Koida T, Suezaki T, Matsumoto M, Saito K, Yoshida I, Kondo M, High-efficiency thin-film silicon solar cells realized by integrating stable a-Si:H absorbers into improved device design, Jpn. J. Appl. Phys., 54, 08KB10 (2015)
6. Sai H, Matsui T, Saito K, Kondo M, Yoshida I, Photocurrent enhancement in thin-film silicon solar cells by combination of anti-reflective sub-wavelength structures and light-trapping textures, Progress in Photovoltaics, Research and Applications, Vol.23,p1572-1580(2015)
7. Matsui T, Bidiville A, Maejima K, Sai H, Koida T, Suezaki T, Matsumoto M, Saito K, Yoshida I, Kondo M, High-efficiency amorphous silicon solar cells: Impact of deposition rate on Metastability, Appl. Phys. Lett. 106, 053901 (2015)
8. Kaneko T, Sato A, Noge H, Saito K, Kondo M, Construction of Fabrication Procedure for Interdigitated Back Contact Silicon Heterojunction Solar Cells with Patterning using Inkjet Printing, 電子情報通信学会論文誌C, J97-C, 277-278 (2014)
9. Maejima K, Koida T, Sai H, Matsui T, Saito K, Kondo M, Takagawa T, Influences of deposition temperature on characteristics of B-doped ZnO films deposited by metal-organic chemical vapor deposition, Thin Solid Films 559, 83-87 (2014)