K
Kikuo Okuyama
Researcher at Hiroshima University
Publications - 629
Citations - 21380
Kikuo Okuyama is an academic researcher from Hiroshima University. The author has contributed to research in topics: Particle & Nanoparticle. The author has an hindex of 70, co-authored 629 publications receiving 19639 citations. Previous affiliations of Kikuo Okuyama include Bandung Institute of Technology & Sebelas Maret University.
Papers
More filters
Journal ArticleDOI
Experimental studies of ion-induced nucleation
TL;DR: In this article, the ion-induced nucleation of dibutylphthalate (DBP) vapor in the presence of unipolar ions was investigated, and the number of DBP particles activated by ions increased with increasing ion number and DBP supersaturation ratio.
Journal ArticleDOI
Effects of Graphene in Dye-Sensitized Solar Cells Based on Nitrogen-Doped TiO2 Composite
Seong-Bum Kim,Jun-Yong Park,Chan-Soo Kim,Kikuo Okuyama,Sung-Eun Lee,Hee-Dong Jang,Tae-Oh Kim +6 more
TL;DR: In this paper, the effect of GR on the performance of dye-sensitized solar cells (DSSCs) was investigated by mixing GR into N-doped TiO2 photoelectrodes.
Journal ArticleDOI
Homogeneous Nucleation by Continuous Mixing of High Temperature Vapor with Room Temperature Gas
TL;DR: In this paper, a particle-free gas at room temperature is continuously mixed with a high-temperature gas containing dibutylphthalate vapor in a new device for the study of aerosol nucleation called a particle size magnifier.
Journal ArticleDOI
Synthesis of Dual-Size Cellulose–Polyvinylpyrrolidone Nanofiber Composites via One-Step Electrospinning Method for High-Performance Air Filter
TL;DR: Aerosol filtration measurements show that this multilayer air filter has an incredibly high performance, shown by the high quality factor (Qf), 0.117 Pa-1, which is 10 times the Qf of commercial HEPA filters.
Journal ArticleDOI
Nanometer-Sized Particle Formation from NH3/SO2/H2O/Air Mixtures by Ionizing Irradiation
TL;DR: In this paper, the effect of NH3 gas on the gas-to-particle conversion process was evaluated in NH3/SO2/H2O/Air mixtures by α-ray irradiation and the total particle number, the charged particle fraction, and the electrical mobility distribution of particles generated in the ionization chamber were measured at various NH3, SO2, and H2O vapor concentrations and residence times.