Masayoshi Umeno

Masayoshi Umeno publication distribution in Materials Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Materials Science in 2026. The highlighted bar marks where Masayoshi Umeno sits on this spectrum.

Masayoshi Umeno D-index placement in Materials Science in 2026

The chart shows the D-index (discipline H-index) distribution of Materials Science scientists ranked by Research.com in 2026. The highlighted bar marks where Masayoshi Umeno sits on this spectrum.

Overview

Best Publications

• Efficient Solar Water Splitting, Exemplified by RuO2-Catalyzed AlGaAs/Si Photoelectrolysis

  S. Licht;and B. Wang;S. Mukerji;T. Soga and

  504
  Citations

• Optical properties of wurtzite structure GaN on sapphire around fundamental absorption edge (0.78–4.77 eV) by spectroscopic ellipsometry and the optical transmission method

  G. Yu;G. Wang;H. Ishikawa;Masayoshi Umeno

  386
  Citations

• GaN on Si Substrate with AlGaN/AlN Intermediate Layer

  Hiroyasu Ishikawa;Guang Yuan Zhao;Naoyuki Nakada;Takashi Egawa

  273
  Citations

• Optical properties and X-ray photoelectron spectroscopic study of pure and Pb-doped TiO2 thin films

  M.M. Rahman;K.M. Krishna;T. Soga;T. Jimbo

  267
  Citations

• Investigations of SiO2/n-GaN and Si3N4/n-GaN insulator–semiconductor interfaces with low interface state density

  S. Arulkumaran;T. Egawa;H. Ishikawa;T. Jimbo

  263
  Citations

• Over 18% solar energy conversion to generation of hydrogen fuel; theory and experiment for efficient solar water splitting

  S Licht;B Wang;S Mukerji;T Soga

  255
  Citations

• Thermal stability of GaN on (111)Si substrate

  Hiroyasu Ishikawa;Kensaku Yamamoto;Takashi Egawa;Tetsuo Soga

  243
  Citations

• Method of making an epitaxial gallium arsenide semiconductor wafer using a strained layer superlattice

  Masayoshi Umeno;Shiro Sakai;Shinichiro Yahagi

  158
  Citations

• Improved characteristics of InGaN multiple-quantum-well light-emitting diode by GaN/AlGaN distributed Bragg reflector grown on sapphire

  N. Nakada;M. Nakaji;Hiroyasu Ishikawa;T. Egawa

  149
  Citations

• Structural and optical properties of diamond and nano-diamond films grown by microwave plasma chemical vapor deposition

  T. Sharda;M.M. Rahaman;Y. Nukaya;T. Soga

  145
  Citations

• Characterization of epitaxially grown GaAs on Si substrates with III‐V compounds intermediate layers by metalorganic chemical vapor deposition

  Tetsuo Soga;Shuzo Hattori;Shiro Sakai;Masanari Takeyasu

  138
  Citations

• Spectroscopic properties of nitrogen doped hydrogenated amorphous carbon films grown by radio frequency plasma-enhanced chemical vapor deposition

  Y. Hayashi;G. Yu;M. M. Rahman;K. M. Krishna

  127
  Citations

• Room-temperature laser operation of AlGaAs/GaAs double heterostructures fabricated on Si substrates by metalorganic chemical vapor deposition

  Shiro Sakai;Tetsuo Soga;Masanari Takeyasu;Masayoshi Umeno

  121
  Citations

• Carbon nanotubes by spray pyrolysis of turpentine oil at different temperatures and their studies

  Rakesh A. Afre;T. Soga;T. Jimbo;Mukul Kumar

  121
  Citations

• Recessed gate AlGaN/GaN modulation-doped field-effect transistors on sapphire

  T. Egawa;Hiroyasu Ishikawa;M. Umeno;T. Jimbo

  120
  Citations

• Optical Absorption and Electrical Conductivity of Amorphous Carbon Thin Films from Camphor: A Natural Source

  Sharif Md. Mominuzzaman;Kalaga Murali Krishna;Tetsuo Soga;Takashi Jimbo

  119
  Citations

• MOCVD growth of GaAs on Si substrates with AlGaP and strained superlattice layers

  T. Soga;S. Hattori;S. Sakai;M. Takeyasu

  118
  Citations

• Photovoltaic and spectral photoresponse characteristics of n-C/p-C solar cell on a p-silicon substrate

  K. M. Krishna;Masayoshi Umeno;Y. Nukaya;Tetsuo Soga

  116
  Citations

• High-Quality GaN on Si Substrate Using AlGaN/AlN Intermediate Layer

  H. Ishikawa;G. Y. Zhao;N. Nakada;T. Egawa

  115
  Citations

• Raman spectra of ion beam sputtered amorphous carbon thin films deposited from camphoric carbon

  Sharif Mohammad Mominuzzaman;Kalaga Murali Krishna;Tetsuo Soga;Takashi Jimbo

  111
  Citations