Kenji Kawaguchi

TL;DR: As-prepared carbon dots exhibited visible, tunable and stable photoluminescence (PL), and XPS analysis showed that the increased oxygen concentration might be concerned with the origin of PL.

TL;DR: Spherical particles are of great interest because of their potential to obtain interesting and useful functionalities in many fields of application, such as photonic crystals, biomedicine, sensing,alysis, environmental remedies, and solar cells.

TL;DR: It remains a challenge to acquire ZnO submicrometer spheres constructed without subunits because the lack of close contact between nanostructures will inevitably inflence and possibly reduce the performance of ZnNO sub Micrometer sphere spheres in electric, magnetic, optoelectrics, and thermoelectric applications.

TL;DR: In this paper, single crystalline tetragonal boron nanobelts were fabricated by a laser ablation method in a furnace without using a catalyst or hazardous borons vapor source.

TL;DR: In this article, structural and chemical properties of interfaces in ferromagnet-insulator-ferromagnetic tunnel junctions were investigated by a molecular beam epitaxy system, and the Fe3O4 quality was examined by reflection high-energy electron diffraction (RHEED), x-ray diffraction, superconducting quantum interference device magnetometry, atomic force microscopy (AFM), and in situ xray photoelectron spectroscopy.