Nakamura S. – TechConnect Briefs

TEM and Raman Spectroscopy Analyses of Fullerene Nanowhiskers and Nanotubes

Miyazawa K., Ringor C., Nakamura K., Nakamura S., Tachibana M., Mashino T., Nakamura K., Nakamura S., National Institute for Materials Science, JP

Structure of the nanowhiskers and nanotubes composed of C60 molecules and C60 derivative molecules are examined by use of Raman spectroscopy and transmission electron microscopy (TEM). The C60 nanotubes (C60NTs) dried in air exhibited a [...]

Synthesis of Spinel Ferrite Particle/Organic Hybrid from Metal-Organics

Yogo T., Nakamura S., Sakamoto W., Nagoya University, JP

Spinel particle/organic hybrids were succsessfully synthesized from metal-organics below 100oC. Chlated iron- (iron allylacetylacetonate) and nickel-organics were used as starting materials. Two nickel-metal organics (nickel acetylacetonate (NA) and nickel diammine propenylacetylacetonate (NPA)) were investigated. The [...]

Nano-Scale Effects in GaN-based Light-Emitting Diodes

Piprek J., Nakamura S., University of California, US

We here investigate the effects of built-in polarization on the properties of non-symmetric InGaN quantum wells. The impact of these nano-scale effects on the performance of blue light emitting diodes is analyzed utilizing advanced numerical [...]

Nanoscale Activated Field on Cermic Electret In Pseudobiological Environment

Nakamura S., Ueshima M., Kobayashi T., Yamashita K., Tokyo Medical and Dental University, JP

A pseudo-biological environment using simulated body fluid (SBF) has been widely accepted as an osteobonding estimation of biomaterial surfaces. In the present study, the interactions at the interface of the polarized HA surface and the [...]