Seiji Samukawa

Summary

Affiliation: Tohoku University
Country: Japan

Publications

  1. pmc Temperature dependence of time-resolved photoluminescence in closely packed alignment of Si nanodisks with SiC barriers
    Takayuki Kiba
    Graduate School of Information Science and Technology, Hokkaido University, Kita 14, Nishi 9, Kita ku, Sapporo, 060 0814, Japan
    Nanoscale Res Lett 8:223. 2013
  2. pmc Plasmonic enhancements of photoluminescence in hybrid Si nanostructures with Au fabricated by fully top-down lithography
    Koudo Nakaji
    Graduate School of Information Science and Technology, Hokkaido University, Kita 14, Nishi 9, Kita ku, Sapporo, 060 0814, Japan
    Nanoscale Res Lett 7:629. 2012
  3. pmc Picosecond carrier dynamics induced by coupling of wavefunctions in a Si-nanodisk array fabricated by neutral beam etching using bio-nano-templates
    Takayuki Kiba
    Graduate School of Information Science and Technology, Hokkaido University, Kita 14, Nishi 9, Kita ku, Sapporo, 060 0814, Japan
    Nanoscale Res Lett 7:587. 2012
  4. pmc Generation of high photocurrent in three-dimensional silicon quantum dot superlattice fabricated by combining bio-template and neutral beam etching for quantum dot solar cells
    Makoto Igarashi
    Institute of Fluid Science, Tohoku University, 2 1 1 Katahira, Aoba, Sendai 9808577, Japan
    Nanoscale Res Lett 8:228. 2013
  5. doi request reprint Effects of formation of mini-bands in two-dimensional array of silicon nanodisks with SiC interlayer for quantum dot solar cells
    Makoto Igarashi
    Institute of Fluid Science, Tohoku University, 2 1 1 Katahira, Aoba, Sendai, 9808577, Japan
    Nanotechnology 24:015301. 2013
  6. doi request reprint Quantum size effects in GaAs nanodisks fabricated using a combination of the bio-template technique and neutral beam etching
    Yosuke Tamura
    Institute of Fluid Science, Tohoku University, 2 1 1 Katahira, Aoba ku, Sendai, Japan
    Nanotechnology 24:285301. 2013
  7. doi request reprint Realistic quantum design of silicon quantum dot intermediate band solar cells
    Weiguo Hu
    Institute of Fluid Science, Tohoku University, 2 1 1 Katahira, Sendai, Miyagi 980 8577, Japan
    Nanotechnology 24:265401. 2013
  8. ncbi request reprint Control of optical bandgap energy and optical absorption coefficient by geometric parameters in sub-10 nm silicon-nanodisc array structure
    Mohd Fairuz Budiman
    Institute of Fluid Science, Tohoku University, Sendai, Miyagi, Japan
    Nanotechnology 23:065302. 2012

Collaborators

  • Makoto Igarashi
  • Weiguo Hu
  • Takayuki Kiba
  • Akihiro Murayama
  • Yosuke Tamura
  • Mohd Fairuz Budiman
  • Noritaka Usami
  • Rikako Tsukamoto
  • Ichiro Yamashita
  • Yoshiya Mizushima
  • Yoshitaka Okada
  • Koudo Nakaji
  • Wugen Pan
  • Cédric Thomas
  • Mohd Erman Syazwan
  • Ming Yi Lee
  • Mohd Erman Fauzi
  • Yiming Li
  • Mohammad Maksudur Rahman
  • Takuya Hoshii
  • Toshiyuki Kaizu
  • Akio Higo
  • Chi Hsien Huang
  • Taiga Isoda
  • Hao Li
  • Kohei M Itoh

Detail Information

Publications8

  1. pmc Temperature dependence of time-resolved photoluminescence in closely packed alignment of Si nanodisks with SiC barriers
    Takayuki Kiba
    Graduate School of Information Science and Technology, Hokkaido University, Kita 14, Nishi 9, Kita ku, Sapporo, 060 0814, Japan
    Nanoscale Res Lett 8:223. 2013
    ..In contrast, the dynamics of the fastest PL decaying component is dominated by electron tunneling among NDs, where the PL intensity and decay time are constant for temperature...
  2. pmc Plasmonic enhancements of photoluminescence in hybrid Si nanostructures with Au fabricated by fully top-down lithography
    Koudo Nakaji
    Graduate School of Information Science and Technology, Hokkaido University, Kita 14, Nishi 9, Kita ku, Sapporo, 060 0814, Japan
    Nanoscale Res Lett 7:629. 2012
    ..We observe that PL intensities in the Si NDs are enhanced by factors up to 5 depending on the wavelength by integrating with the Au nanoplates. These enhancements also depend on the size and shape of the Au nanoplates...
  3. pmc Picosecond carrier dynamics induced by coupling of wavefunctions in a Si-nanodisk array fabricated by neutral beam etching using bio-nano-templates
    Takayuki Kiba
    Graduate School of Information Science and Technology, Hokkaido University, Kita 14, Nishi 9, Kita ku, Sapporo, 060 0814, Japan
    Nanoscale Res Lett 7:587. 2012
    ..02 eV for τ = 300 ps, and 2.00 eV for τ = 1.6 ns. These energy separations ranging from 10 to 30 meV among the emissive states can be attributed to the coupling of wavefunctions of carriers between neighboring NDs...
  4. pmc Generation of high photocurrent in three-dimensional silicon quantum dot superlattice fabricated by combining bio-template and neutral beam etching for quantum dot solar cells
    Makoto Igarashi
    Institute of Fluid Science, Tohoku University, 2 1 1 Katahira, Aoba, Sendai 9808577, Japan
    Nanoscale Res Lett 8:228. 2013
    ..Hence, high photocurrent could be observed in our Si-ND array with high photoabsorption and carrier conductivity due to the formation of 3D minibands...
  5. doi request reprint Effects of formation of mini-bands in two-dimensional array of silicon nanodisks with SiC interlayer for quantum dot solar cells
    Makoto Igarashi
    Institute of Fluid Science, Tohoku University, 2 1 1 Katahira, Aoba, Sendai, 9808577, Japan
    Nanotechnology 24:015301. 2013
    ..We confirmed carrier generation and less current degradation in the structure due to high photon absorption and conductivity by inserting the Si-NDs into p-i-n solar cells...
  6. doi request reprint Quantum size effects in GaAs nanodisks fabricated using a combination of the bio-template technique and neutral beam etching
    Yosuke Tamura
    Institute of Fluid Science, Tohoku University, 2 1 1 Katahira, Aoba ku, Sendai, Japan
    Nanotechnology 24:285301. 2013
    ..Quantum level engineering due to both diameter and thickness was verified from the good agreement between the PL emission energy and the calculated quantum confinement energy. ..
  7. doi request reprint Realistic quantum design of silicon quantum dot intermediate band solar cells
    Weiguo Hu
    Institute of Fluid Science, Tohoku University, 2 1 1 Katahira, Sendai, Miyagi 980 8577, Japan
    Nanotechnology 24:265401. 2013
    ..A theoretically predicted maximal efficiency of the explored Si nanodisk superlattice is 50.3%, which is promising, compared with well-known complicated Si tandem solar cells...
  8. ncbi request reprint Control of optical bandgap energy and optical absorption coefficient by geometric parameters in sub-10 nm silicon-nanodisc array structure
    Mohd Fairuz Budiman
    Institute of Fluid Science, Tohoku University, Sendai, Miyagi, Japan
    Nanotechnology 23:065302. 2012
    ..This means that our 6 nm diameter Si-ND structure can satisfy the strict requirements of optical bandgap energy control and high absorption coefficient for achieving realistic Si quantum dot solar cells...