Kyushu University Academic Staff Educational and Research Activities Database
List of Presentations
Yoshimine Kato Last modified date:2021.08.26

Associate Professor / Advanced Material Physics / Department of Materials Science and Engineering / Faculty of Engineering


Presentations
1. Huan Zhu, Yusuke Kuboki, Morihiro Sakamoto, Yoshimine Kato, Effect of Low Temperature Annealing on pn Junction Formation Using Si Paste, 2021 IEEE Electron Devices Technology and Manufacturing (EDTM) Conference, 2021.04.
2. Akitoshi Matsuda, Yoshimine Kato, Model-Based Sensor System for Measuring Gas Concentration by Ultrasound, 2020 IEEE 9th Global Conference on Consumer Electronics (GCCE) Conference, 2020.10.
3. Ting Pan, Zhu Huan, Morihiro Sakamoto, Hiroshige Matsumoto, Yoshimine Kato, Effect of rapid thermal annealing on fabricating pn-junction device by Si paste, 九州大学エネルギーウィーク2020, 2020.01.
4. Takuya Kido, Mahjabin Taskin, Ting Pan, Yusei Yamamoto, Toshimitsu Tanaka, Masahiro Inoue and Yoshimine Kato , Observation of H2 Gas Replacement in a Pipeline Using Ultrasonic, International Conference on Sustainable Energy and Green Technology, SEGT 2019, 2019.12.
5. Huan Zhu, Yoshimine Kato, Kungen Teii, Rapid Thermal Annealing on Si film and pn-junction formation by Si paste, TACT2019 International Thin Films Conference, 2019.11, The cost of making a Si wafer is the biggest barrier to prevent further large scale installation which partly comes from wasting the saw dust during wafering process. In an attempt to save the manufacture cost, we have first introduced a novel way to fabricate Si homojunction based solar cells by Si pastes to skip all Czochralski Si ingot growth procedures [1]. In this research, Si pastes were prepared from grinded the n or p-type Si slices through a planetary ball miller. The pn-junction device was directly fabricated by coating p-type and n-type Si pastes on an Al sputtered carbon substrate. Rapid thermal annealing (RTA) was performed for recrystallization of Si paste and suppressing the oxidation of Si films in an infrared heating furnace, and RTA temperatures were controlled from 1150 to 1300 ℃ while annealing periods were set as 1s, 5s, 10s, 30s, 1min, 5min and 10min to optimize the RTA parameters. Raman spectra and X-ray diffraction patterns were used for identifying the crystallization of Si films. Fourier Transform Infrared Spectroscopy was utilized for evaluating the oxidation level of Si films after annealing process, and microstructure of device was observed by scanning electron microscope, finally, current-voltage characteristics measurements were performed by a power device analyzer/curve tracer. As a result, typical rectify performance was acquired with pn device, structure porosity and oxidation condition were improved by rapid thermal annealing. Photo-induced current was also confirmed under the AM1.5 illumination. Since this low cost Si paste showed huge potential for solar cell manufacturing, it was expected that such low cost solar cell would spread out in the world..
6. Y. Kato, Si paste as a novel printing electronic material, International Conference on Materials Science and Engineering, 2019.09.
7. Y. Kato, H. Fukuoka, M. Taskin, and Akitoshi Matsuda, Oxygen Concentration Measurement in the Air by using Ultrasonic, The International Conference on Advanced Materials Science and Engineering (AMSE 2019), 2019.03.
8. Yan Li, Yoshimine Kato, pn junction formation by Si paste coated on metal substrates, 九州大学エネルギーウィーク2019, 2019.01.
9. 井上雅弘, 加藤 喜峰, Bing-rui Li, In situ Measurement of Thermal Conductivity and Diffusivity of Rock, International Symposium in Mine Ventilation (SIVM 2018), 2018.11.
10. 井上雅弘, 加藤 喜峰, Bing-rui Li, Development of a New Remote Sensor for Concentration and Location of Various Gases in Mines, International Symposium in Mine Ventilation (SIVM 2018), 2018.11.
11. Mahjabin Taskin, 木戸 拓哉, 井上雅弘, 加藤 喜峰, Ultrasonic Flow Meter for Mine Ventilation, International Symposium in Mine Ventilation (SIVM 2018), 2018.11.
12. Mahjabin Taskin, 木戸 拓哉, 井上雅弘, 加藤 喜峰, Methane Detection in Airflow using Ultrasound from Exterior of the Ventilation Pipe, International Symposium in Mine Ventilation (SIVM 2018), 2018.11.
13. Mahjabin Taskin, 木戸 拓哉, 加藤 喜峰, Flowing H2 Gas Concentration Measurement Using Ultrasound from Exterior of the Pipe, IEEE Sensors 2018, 2018.10.
14. Mahjabin Taskin, 内海 銀志朗, 加藤 喜峰, Observation of Ultrasound Wave from Exterior of a Metal Pipe for Flowing Gas Measurement, IWPMA2018 (Workshop on Piezoelectric Materials and Applications in Actuators), 2018.09.
15. Yoshimine Kato, Hirotsugu Tsuchida, Kent Dobara, Masatoshi Aramaki, Osamu Furukimi, Hydrogen Trap in Seashells, PRiME 2016 (Pacific Rim Meeting on Electrochemical and Solid-state Science), 2016.10.
16. Yoshimine Kato, Masahiro INOUE, Hiroshi Furukawa, Munehiro Iwakura, Wireless network of gas concentration detection using ultrasonic devices
, 10th INTERNATIONAL MINE VENTILATION CONGRESS 2014, 2014.08.
17. 葛 晰遥, 平松 智寛, 加藤 喜峰, HYDROGEN GAS CONCENTRATION MEASUREMENT FROM EXTERIOR OF A PIPELINE BY USING ULTRASONIC
, International Conference on Hydrogen Production - 2014, 2014.02.
18. Hydrogen Gas Concentration Measurement in a Pipe by Using Ultrasonic.
19. N. Shimoda, R. Amano, Yoshimine Kato, KUNGEN TEII, The Ohmic Electrode of the Thin Nanocrystalline Diamond Film at High Temperatures, Diamond and Carbon Materials 2013, 2013.09.
20. A hydrogen sensor using ultrasonic.
21. A hydrogen sensor using ultrasonic.
22. Temperture dependence of a hydrogen sensor using ultrasonic.
23. Research on a hydrogen sensor using ultrasonic.
24. Diamond like carbon (DLC) films applied for liquid crystal display alignment layer.
25. Nucleation of SiC on as-received and undulated Si(001) substrates, Yoshimine Kato, Proc. of International Conference on Silicon Carbide and Related Materials 2007, pp.Mo-92 .