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Engineering and Technology

D-Index
41
Citations
5624
World Ranking
7073
National Ranking
146

Overview

Hitoshi Sai is affiliated with the National Institute of Advanced Industrial Science and Technology in Japan. Their research spans primarily within the field of Engineering, focusing heavily on Electrical and Electronic Engineering, with additional work in Atomic and Molecular Physics, and Optics, Biomedical Engineering, Materials Chemistry, and Renewable Energy, Sustainability and the Environment.

The scientist's work concentrates on topics such as Thin-Film Transistor Technologies, Silicon and Solar Cell Technologies, Semiconductor Materials and Interfaces, Perovskite Materials and Applications, Chalcogenide Semiconductor Thin Films, Nanowire Synthesis and Applications, and solar cell performance optimization.

Frequent coauthors in their research include:

  • Takuya Matsui
  • Zhihao Xu
  • Takashi Koida
  • Calum McDonald
  • Noritaka Usami

The following are venues where Hitoshi Sai has published multiple works:

  • Solar RRL
  • ACS Applied Materials & Interfaces
  • Progress in Photovoltaics Research and Applications
  • Japanese Journal of Applied Physics
  • Solar Energy Materials and Solar Cells

Recent notable papers include:

  • "Extraordinary Strong Band-Edge Absorption in Distorted Chalcogenide Perovskites," 2020, Solar RRL
  • "Extraordinary Strong Band-Edge Absorption in Distorted Chalcogenide Perovskites," 2020, Solar RRL
  • "Atomic-Layer-Deposited TiOx Nanolayers Function as Efficient Hole-Selective Passivating Contacts in Silicon Solar Cells," 2020, ACS Applied Materials & Interfaces
  • "Intrinsic Amorphous Silicon Bilayers for Effective Surface Passivation in Silicon Heterojunction Solar Cells: A Comparative Study of Interfacial Layers," 2021, physica status solidi (a)
  • "Nanocrystalline-silicon hole contact layers enabling efficiency improvement of silicon heterojunction solar cells: Impact of nanostructure evolution on solar cell performance," 2020, Progress in Photovoltaics Research and Applications

Best Publications

  • 100 nm period silicon antireflection structures fabricated using a porous alumina membrane mask

    Y. Kanamori;K. Hane;H. Sai;H. Yugami

  • Light trapping effect of submicron surface textures in crystalline Si solar cells

    Hitoshi Sai;Yoshiaki Kanamori;Koji Arafune;Yoshio Ohshita

  • High-temperature resistive surface grating for spectral control of thermal radiation

    Hitoshi Sai;Yoshiaki Kanamori;Hiroo Yugami

  • Antireflective subwavelength structures on crystalline Si fabricated using directly formed anodic porous alumina masks

    Hitoshi Sai;Homare Fujii;Koji Arafune;Yoshio Ohshita

  • Enhancement of light trapping in thin-film hydrogenated microcrystalline Si solar cells using back reflectors with self-ordered dimple pattern

    Hitoshi Sai;Hiroyuki Fujiwara;Michio Kondo;Yoshiaki Kanamori

  • Relationship between the cell thickness and the optimum period of textured back reflectors in thin-film microcrystalline silicon solar cells

    Hitoshi Sai;Kimihiko Saito;Nana Hozuki;Michio Kondo

  • Impact of front and rear texture of thin-film microcrystalline silicon solar cells on their light trapping properties

    Hitoshi Sai;Haijun Jia;Michio Kondo

  • High-efficiency amorphous silicon solar cells: Impact of deposition rate on metastability

    Takuya Matsui;Adrien Bidiville;Keigou Maejima;Hitoshi Sai

  • Extraordinary Strong Band-Edge Absorption in Distorted Chalcogenide Perovskites

    Yukinori Nishigaki;Takayuki Nagai;Mitsutoshi Nishiwaki;Takuma Aizawa

  • Triple-junction thin-film silicon solar cell fabricated on periodically textured substrate with a stabilized efficiency of 13.6%

    Hitoshi Sai;Takuya Matsui;Takashi Koida;Koji Matsubara

  • Spectral control of thermal emission by periodic microstructured surfaces in the near-infrared region

    Hitoshi Sai;Hiroo Yugami;Yasuhiro Akiyama;Yoshiaki Kanamori

  • Solar selective absorbers based on two-dimensional W surface gratings with submicron periods for high-temperature photothermal conversion

    Hitoshi Sai;Hiroo Yugami;Yoshiaki Kanamori;Kazuhiro Hane

  • Wide-Angle Antireflection Effect of Subwavelength Structures for Solar Cells

    Hitoshi Sai;Hitoshi Sai;Homare Fujii;Koji Arafune;Yoshio Ohshita

  • Tuning of the thermal radiation spectrum in the near-infrared region by metallic surface microstructures

    Hitoshi Sai;Yoshiaki Kanamori;Hiroo Yugami

  • Effect of self-orderly textured back reflectors on light trapping in thin-film microcrystalline silicon solar cells

    Hitoshi Sai;Michio Kondo

  • Potential of thin-film silicon solar cells by using high haze TCO superstrates

    J. Krc;B. Lipovsek;M. Bokalic;A. Campa

  • Stabilized 14.0%-efficient triple-junction thin-film silicon solar cell

    Hitoshi Sai;Takuya Matsui;Koji Matsubara

  • 11.0%-Efficient Thin-Film Microcrystalline Silicon Solar Cells With Honeycomb Textured Substrates

    Hitoshi Sai;Takuya Matsui;Koji Matsubara;Michio Kondo

  • High‐efficiency thin‐film silicon solar cells with improved light‐soaking stability

    Takuya Matsui;Hitoshi Sai;Kimihiko Saito;Michio Kondo

  • High-efficiency thin-film silicon solar cells realized by integrating stable a-Si:H absorbers into improved device design

    Takuya Matsui;Keigou Maejima;Adrien Bidiville;Hitoshi Sai

  • Flattened light-scattering substrate in thin film silicon solar cells for improved infrared response

    Hitoshi Sai;Yoshiaki Kanamori;Michio Kondo

  • Numerical study on spectral properties of tungsten one-dimensional surface-relief gratings for spectrally selective devices.

    Hitoshi Sai;Yoshiaki Kanamori;Kazuhiro Hane;Hiroo Yugami

  • Development of Highly Stable and Efficient Amorphous Silicon Based Solar Cells

    M. Kondo;I. Yoshida;K. Saito;M. Matsumoto

  • High-efficiency microcrystalline silicon solar cells on honeycomb textured substrates grown with high-rate VHF plasma-enhanced chemical vapor deposition

    Hitoshi Sai;Keigo Maejima;Takuya Matsui;Takashi Koida

  • Back surface reflectors with periodic textures fabricated by self-ordering process for light trapping in thin-film microcrystalline silicon solar cells

    Hitoshi Sai;Hiroyuki Fujiwara;Michio Kondo

  • Photocurrent enhancement in thin‐film silicon solar cells by combination of anti‐reflective sub‐wavelength structures and light‐trapping textures

    Hitoshi Sai;Takuya Matsui;Kimihiko Saito;Michio Kondo

  • Enhanced photocurrent and conversion efficiency in thin-film microcrystalline silicon solar cells using periodically textured back reflectors with hexagonal dimple arrays

    Hitoshi Sai;Kimihiko Saito;Michio Kondo

  • Application of hydrogen-doped In2O3 transparent conductive oxide to thin-film microcrystalline Si solar cells

    Takashi Koida;Hitoshi Sai;Michio Kondo

  • Full-wave optoelectrical modeling of optimized flattened light-scattering substrate for high efficiency thin-film silicon solar cells

    Olindo Isabella;Hitoshi Sai;Michio Kondo;Miro Zeman

Frequent Co-Authors

Michio Kondo
Michio Kondo Waseda University
Kazuhiro Hane
Kazuhiro Hane Tohoku University
Masafumi Yamaguchi
Masafumi Yamaguchi Toyota Technological Institute
Takeshi Ohshima
Takeshi Ohshima Japan Atomic Energy Agency
Dietmar Knipp
Dietmar Knipp Stanford University
Miro Zeman
Miro Zeman Delft University of Technology
Olindo Isabella
Olindo Isabella Delft University of Technology
Tadatsugu Minami
Tadatsugu Minami Kanazawa Institute of Technology
Hidenori Hiramatsu
Hidenori Hiramatsu Tokyo Institute of Technology
Christophe Ballif
Christophe Ballif École Polytechnique Fédérale de Lausanne

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