FUJIWARAｰHiroyuki

FUJIWARA Hiroyuki
Title Professor
Department Department of Electrical, Electronic and Computer Engineering
Course Electrical and Electronic Course

Research fields

Our research group has been developing new fabrication and characterization techniques for solar cell materials/devices, in an attempt to realize the production of high-efficiency and low-cost solar cell modules. For the characterization of solar cells, we are applying an optical measurement technique, called spectroscopic ellipsometry, which allows high-precision analyses of various solar-cell component layers nondestructively with high speed. Currently, to contribute to the solar cell field, our research group is mainly focusing on three research topics including

i) Development of solar-cell fabrication processes for new light absorber materials,
ii) Development of solar-cell device simulation technique, and
iii) Fabrication of high-efficiency amorphous/crystalline silicon heterojunction solar cells.

Although a variety of solar cell materials have been developed, establishing the fabrication processes for high-efficiency solar cells is crucial for the rapid expansion of solar cells. Moreover, in recent solar cell researches, the understanding of carrier generation/recombination processes in actual solar cell devices is of significant importance. Accordingly, we are developing a new solar-cell device simulator by collaborating with various solar-cell manufacturing companies.

Distribution of photo-generated carriers within a CuInGaSe2 solar cell calculated from the developed device simulator

Research Keywords

Solar cell, Device simulation, Semiconductor

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