Quantum dots have attracted much attention for use in photovoltaic applications because of their potential for overcoming the limits of current efficiency records of about 30%. We have demonstrated a systematic analysis in the silicon-based solar cells using quantum dots as intermediate absorber, and provided design principles for highly-efficient quantum dot solar cells. Our findings will open the way to explore the novel photovoltaic concepts in silicon-based nanostructured solar cells.
Researcher Information
JST PRESTO
Research Area: "Photoenergy conversion systems and materials for the next generation solar cells"
Research Theme: "Controlling of the many-body interaction between photoexcited carriers toward hot carrier solar cells"
Journal Information
Takeshi Tayagaki, Yusuke Hoshi, and Noritaka Usami
“Investigation of the open-circuit voltage in solar cells doped with quantum dots”
Scientific Reports, Published online 26 September 2013
doi: 10.1038/srep02703
Contact
[About Research]
Takeshi Tayagaki, Ph.D.
Associate Professor, Institute for Chemical Research, Kyoto University
E-mail: 
http://www.scl.kyoto-u.ac.jp/~opt-nano/tayagaki/TakeshiTayagaki_HP.htm
[About Program]
Masashi Furukawa, Fumiharu Kimura, Natsuko Kawazoe
Green Innovation Group, Department of Innovation Research, JST
E-mail: 