Research theme for competitive and other funds (15):
2020 - 2023 Formation of sprayed semiconducting nano-particle layers and their device applications
2017 - 2020 The development of SHG probes using ZnO nanoparticles
2016 - 2020 Dramatic spread of substrate materials for semiconducting layer formation by spraying ZnO nanoparticles
2014 - 2017 Toxicity evaluation of ZnO nanoparticles
2013 - 2016 Developement of ZnO nanopartucle coated near uv light emitting diodes
2009 - 2011 Development of transparent electrode with curved surface for simultaneous detection of the electrocorticogram from inside of the optical recording area and/or for giving electro-stimulations to the area
2006 - 2008 酸化亜鉛系薄膜成長用MOCVD装置の開発
2007 - 2007 半導体ナノ粒子を用いた高輝度エレクトロルミネッセンスパネルの開発
2006 - 2006 酸化亜鉛(ZnO)ナノ粒子による癌検診等の医療応用技術の可能性試験
2001 - 2003 Growth of p-type ZnO single crystal films by photo-assisted metal-organic chemical vapor deposition
1999 - 酸化亜鉛薄膜,ナノ粒子の研究
Development of ZnO LED, LD
Research and development of optoelectronic devices
Study on material properties of metal oxcide semiconductors
Study on epitaxial growth of compound semiconductors by metalorganic chemical vapor deposition
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Papers (73):
Raj Deep, Toshiyuki Yoshida, Yasuhisa Fujita. Full-Color Electroluminescence from ZnO Nanoparticles-Based Homojunction Diodes. physica status solidi (RRL) - Rapid Research Letters. 2024. 1-8
Raj Deep, Toshiyuki Yoshida, Yasuhisa Fujita. Defects in Nitrogen-Doped ZnO Nanoparticles and Their Effect on Light-Emitting Diodes. Nanomaterials. 2024. 14. 11. 977-977
Delfino Reyes, Hyeonu Heo, Ángel M. Martínez-Argüello, Yasuhisa Fujita, Purnima B. Neogi, Arup Neogi. Underwater analyte sensing using a phononic crystal waveguide-based interferometric acoustic spectrometer. IEEE Open Journal of Ultrasonics, Ferroelectrics, and Frequency Control. 2024. 1-12
Raj Deep, Takuma Akazawa, Toshiyuki Yoshida, Yasuhisa Fujita. A Spectroscopic Evaluation of the Generation Process of Semiconductor Nanoparticles (ZnO) by DC Arc Plasma. J. 2023. 6. 2. 207-219
Islam Mohammad Shafiqul, Toshiyuki Yoshida, Yasuhisa Fujita. p-ZnO/n-ZnMgO Nanoparticle-Based Heterojunction UV Light-Emitting Diodes. Materials. 2022. 15. 23. 8348-8348
1999/04 - 2018/03 Shimane University Interdisciplinary Faculty of Science and Engineering, Department of Electronic and Control Systems Engineering, Electronic Device Engineering Professor