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JST Press Release

May 8, 2014
Japan Science and Technology Agency (JST)
5-3, Yonbancho, Chiyoda-ku, Tokyo 102-8666
URL http://www.jst.go.jp/EN/index.html

Highly controlled organic solar cell architecture achieved by crystal growth technique

Dr. Tetsuhiko Miyadera, a researcher at National Institute of Advanced Industrial Science and Technology, and his coworkers achieved highly controlled organic solar cell architecture by means of crystal growth technique. The technique known as heteroepitaxy was applied to the co-evaporation of donor and acceptor materials. The ideal film morphology with high crystallinity was achieved, where carriers can be transported smoothly. As a result, the solar-cell power conversion efficiency was doubled from 1.85 % to 4.15 %. Further improvement of organic solar cells will accelerate the realization of flexible and low-cost solar panels.

Researcher Information

Research Area: “Photoenergy conversion systems and materials for the next generation solar cells”
Research Theme:“Heteroepitaxy for the achievement of high efficiency organic-single-crystal solar cells”

Journal Information

Zhiping Wang, Tetsuhiko Miyadera, Toshihiro Yamanari, and Yuji Yoshida. “Templating effects in molecular growth of blended films for efficient small-molecule photovoltaics ” ACS Applied Materials & Interfaces, Published online 14 May 2014
doi: 10.1021/am405740c


[About Research]
Tetsuhiko Miyadera, Ph.D.
Researcher, The Research Center for Photovoltaics Technologies, National Institute of Advanced Industrial Science and Technology (AIST)
URL: http://www.jst.go.jp/presto/solar/en/researcher/3ki/11.html

[About Program]
Masashi Furukawa and Sofia Suzuki
Green Innovation Group, Department of Innovation Research, JST


JST, an integrated organization of science and technology in Japan, establishes an infrastructure for the entire process from the creation of knowledge to the return to the society. For more information, visit http://www.jst.go.jp/EN/