Sep 25 2015
Research highlights of the September 2015 issue of the University of Electro-Communications e-Bulletin include: innovative organolead halide perovskite solar cells solar cells with conversion efficiencies over 20%; quantum dot solar cells; analysis of apparently smooth movements that may help to understand jerky motor motion; and Professor Takayoshi Kobayashi’s pioneering research on ultrashort pulse lasers, ultrafast spectroscopy, and quantum information.
http://www.ru.uec.ac.jp/e-bulletin/
Feature article
Frontiers of research on solar cells: Lead (Pb) perovskites with efficiencies over 20%
Qing Shen, associate professor at the Department of Engineering Science, Faculty of Informatics and Engineering at UEC, Tokyo.
http://www.ru.uec.ac.jp/e-bulletin/feature/2015/frontiers-of-research-on-solar-cells.html
Research Highlights
Nanowire quantum dot solar cells: oxide layer boosts performance
http://www.ru.uec.ac.jp/e-bulletin/research-highlights/2015/nanowire-quantum-dot-solar-cells.htm
Chang, Shen and colleagues at the University of Electro-Communications and CREST in Japan, Universitat Jaume I in Spain, Kyushu Institute of Technology and King Abdulaziz University in Saudi Arabia show that a titanium oxide layer can passivate the surface of the nanowires thereby reducing recombination. The oxide layer allows a 40% improvement in the energy conversion efficiency of the devices and they are stable in air for over 130 days.
Motor behaviour: understanding the jerks that lurk in smooth movements
http://www.ru.uec.ac.jp/e-bulletin/research-highlights/2015/motor-behaviour.html
Inoue and Sakaguchi show that continuous wavelet transforms are an effective means of identifying discontinuities without suffering the drawbacks of other approaches for longer movements. They also show how to distinguish the discontinuities from other movement features such as hand tremors or peaks in a pulse of movement.
Further information:
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