A research group led by Professor Seiji Samukawa at Institute of Fluid Science, Tohoku University has developed a technology to form disk-shaped silicon microcrystalline (quantum dot) that can control thickness. The group has formed uniform microstructures in the form of micro protein on silicon substrate, and used low damage neutral beam to process without developing defects. The new technology will be able to apply to high-efficient quantum dot solar cells because a property of dot changes according to thickness change. The research group aims to make a trial model of the new solar cell in few yeas.

 The research results have been presented at International Meeting on Solid State Devices and Materials (SSDM2009), Japan’s largest meeting on semiconductor, on October 9, 2009 in Sendai.

[Contact]
Professor Seiji Samukawa
Institute of Fluid Science, Tohoku University
Tel: +81-22-217-5240
E-mail: samukawa@ifs.tohoku.ac.jp