National Institute for Materials Science

University of Washington

Japan Science and Technology Agency

Tosoh Corporation

Takahiro Nagata

Kenji Kitamura

Takehiko Kitamori

Hideto Kuramochi

Guozhong Cao

Masami Mesuda

Minoru Osada

Yuya Tsuchida

Kazuma Mawatari

Toshiyuki Tsuchiya

Toyohiro Chikyow

Yutaka Kazoe

Yuriy Pihosh

Xiaoyan Liu

Yuya Suemoto

Liwen Sang

Osamu Tabata

Yoshihiro Ueoka

The present invention provides: a multilayer film structure which has high crystallinity and planarity; and a method for producing this multilayer film structure. This multilayer film structure is provided with: an Si (111) substrate; a first thin film that is arranged on the Si (111) substrate, while being formed of a nitride material and/or aluminum; and a second thin film that is arranged on the first thin film, while being formed of a nitride material. An amorphous layer having a thickness of 0 nm or more but less than 1.0 nm are present on the Si (111) substrate; and the full width at half maximum (FWHM) of a rocking curve of the (0002) plane at the surface of this multilayer film structure is 1.50° or less.

Multilayer film structure and method for producing same

A first proton-donating layer () is a layer having a proton-donative functional group on the surface, for example, a silicon oxide layer. A second proton-donating layer () is also a layer having a proton-donative functional group on the surface, for example, a silicon oxide layer. Negative surface charges are formed on the main surface section of a first base () and the main surface section of a second base (), and these negative charges increased the proton conductivity in an aqueous solution fed to a nano channel. Although, in the aqueous solution, proton migration through hopping between water molecules contributes to its diffusion, the negative charges formed on the main surfaces of the bases () attract protons in the aqueous solution, and the conduction of protons is efficiently achieved in 'high-speed transfer regions' formed in the vicinity of the proton-donating layers ().

Proton conductor and fuel cell

A substrate for surface enhanced Raman spectroscopy analysis (SERS) comprises a ferroelectric single crystal having polarization-inverted patterns of spontaneous polarizations including polarization-inverted portions and non-inverted polarization portions, and metallic dots positioned at only either one polarized surfaces of the polarization-inverted portions and the non-inverted polarization portions. The provided SERS substrate produces a high enhancement effect. A microfluidic device incorporating the SERS substrate is also provided.

Substrate for surface enhanced Raman spectroscopy analysis and manufacturing method of the same, biosensor using the same, and microfluidic device using the same

Growing community of inventors

Ibaraki, Japan

Takahiro Nagata