プロフィール

GHEDIYA, Prashant

prashantghediya(at)gmail.com

居室:北キャンパス電子科学研究所 3F 03-106
TEL : 011-706-9433 / FAX : 011-706-9432
研究キーワード:透明酸化物半導体デバイス, 熱電能電界変調法
orcid0000-0001-9953-0471

略歴

2022-Present: Postdoctoral Research Fellow, RIES, Hokkaido University, Japan
2021: Postdoctoral visitor, Functional Materials Engineering (FME), IMO-IMOMEC, Hasselt University, Belgium
2016-2022: Assistant Professor, Department of Physica, Marwadi University, India
2018: Ph.D. (Physics), Charotar University of Science and Technology, Changa, Gujarat, India
2017: Department of Electronic Materials Engineering, Research School of Physics, ANU, Canbera, Australia
2012-2016: Ph.D. candidate, PDPIAS, Charotar University of Science and Technology, India
2011-2012: Assistant Professor, Department of Physics, Babaria Institute of Technology, India
2008-2011: Lecturer, Department of Physics, Government Polytechnic, India
2007: Master of Science (Physics), Saurashtra University, India
2005: Bachelor of Science (Physics), Saurashtra University, India

原著論文 (17)

[17] Prashant R. Ghediya, Joao Silvano, Pieter Verding, Rachith Shanivarasanthe Nithyananda Kumar, Guy Brammertz, Andreas Paulus, Ken Elen, Bart Ruttens, Sudhanshu Shukla, Jan D’Haen, An Hardy, Bart Vermang, Wim Deferme, “Ultrasonic spray coating of kesterite CZTS films from molecular inks”, Appl. Phys. A 129, 404-415 (2023). (DOI: 10.1007/s00339-023-06692-0)

[16] Prashant Ghediya, Hui Yang, Takashi Fujimoto, Yuqiao Zhang, Yasutaka Matsuo, Yusaku Magari, and Hiromichi Ohta, “Improved Electron Transport Properties of Zn-rich In-Ga-Zn-O Thin Film Transistors”, J. Phys. Chem. C 127, 2622-2627 (2023). (DOI: 10.1021/acs.jpcc.2c07442)

[15] Sabrina Tair, Prashant R Ghediya, Abdelkader Nebatti Ech-Chergui, M’hamed Guezzoul, Sanat Kumar Mukherjee, Kouider Driss-Khodja, Rajan Singh, Jaymin Ray and Bouhalouane Amrani, “n-type SnS2 thin films spray-coated from transparent molecular ink as a non-toxic buffer layer for solar photovoltaics”, Physica Scripta 97, (2022) 095810

[14] Prashant R. Ghediya, Yash M. Palan, Drashti P. Bhangadiya, Ishrat I. Nakani, Tapas K. Chaudhuri, Kinjal Joshi, C. K. Sumesh, Jaymin Ray, “Electrical properties of Ag/p-Cu2NiSnS4 thin film Schottky diode”, Materials Today Communications 28 (2021) 102697 The Charusat Research Paper Award 2023

[13] Prashant Ghediya and Tapas Chaudhuri, “Direct-ink coating techniques for Cu-based multicomponent semiconductor films”, Materials Science in Semiconductor Processing (2021).

[12] Prashant R. Ghediya, T. K. Chaudhuri, Vidur Raj, Dhaval Vankhade, Hark Hoe Tan and Chennupati Jagadish, “Electrical properties of compact drop-casted Cu2SnS3 films”, Journal of Electronic Materials 49 (2020) 6403.

[11] Prashant R. Ghediya, T. K. Chaudhuri, Jaymin Ray, Heena L. Panjwani, Priyanka J. Hemani, Priya P. Paneri, Ravirajsinh J. Jadav, K. D. Rupapara and R. R. Joshi, “Synthesis and characterizations of copper cadmium sulphide (CuCdS2) as potential absorber for thin film photovoltaics”, Materials Chemistry and Physics 252 (2020) 123382.

[10] Tapas K. Chaudhuri, Prashant R. Ghediya, and Mitesh H. Patel, “Dark and photoconductivity of PbS/polystyrene nanocomposite films from 77-300 K”, Surfaces and Interfaces 20 (2020) 100580.

[9] Prashant R. Ghediya, Tapas K. Chaudhuri and Jaymin Ray, “Electrical transport properties of dip-coated nanocrystalline Cu2ZnSnS4 thin films”, Journal of Materials Science: Materials in Electronics 31 (2020) 658.

[8] Prashant R. Ghediya, K. K. Joshi, P. A. Kasela, T. K. Chaudhuri and M. Kandoliya, “Effect of solvents on physical properties of direct-coated Cu2CoSnS4 films”, Materials Research Express 6 (2019) 106419.

[7] Prashant Ghediya, T. Chaudhuri, V. Raj, D. Chugh, K. Vora, Li Li, H. Tan, C. Jagadish, “Direct-coated Cu2SnS3 films from molecular solution inks for solar photovoltaics”, Materials Science in Semiconductor Processing 88 (2018) 120.

[6] Prashant R. Ghediya and T. K. Chaudhuri, “Dip-coated Cu2CoSnS4 thin films from molecular ink for solar photovoltaics”, Materials Research Express 5 (2018) 085509.

[5] Tapas K. Chaudhuri, M. H. Patel, D. Tiwari and Prashant R. Ghediya, “Kesterite Cu2ZnSnS4 thin films by drop-on-demand inkjet printing from molecular ink”, Journal of Alloys and Compounds 747 (2018) 31.

[4] Prashant R. Ghediya, T. K. Chaudhuri and Dhaval Vankhade, “Electrical conduction of CZTS films in dark and under light from molecular solution ink”, Journal of Alloys and Compounds 685 (2016) 498.

[3] Jaymin Ray, Mitesh H. Patel, Prashant R. Ghediya and Tapas K. Chaudhuri, “Preparation and characterization of chemically deposited nickel sulphide films and its
application as potential counter electrode”, Materials Research Express 3 (2016) 075906.

[2] Prashant R. Ghediya and Tapas K. Chaudhuri, “Dark and photo-conductivity of doctor-bladed CZTS films above room-temperature”, Journal of Physics D: Applied Physics 48 (2015) 455109.

[1] Prashant R. Ghediya and Tapas K Chaudhuri, “Doctor-blade printing of Cu2ZnSnS4 films from microwave-processed ink”, Journal of Materials Science: Materials in Electronics 26 (2015) 19.

書籍 (1)

[1] Chapter 5: Microwave-processed copper zinc tin sulphide (CZTS) inks for coatings in solar cells, by Prashant R. Ghediya and Tapas K. Chaudhuri, pp 121 – 174 in J. Zhang and Y-G Jung (Eds.), Advanced Ceramic and Metallic Coating and Thin Film Materials for Energy and Environmental Applications (Springer, 2018)

プロシーディングス (4)

[4] Prashant R. Ghediya and Tapas K. Chaudhuri, “Effect of Microstructure on Electrical Properties of Cu2ZnSnS4 Films Deposited from Inks”, Springer Proceeding 215 (2019) 497, The XIX International Workshop on The Physics of Semiconductor Devices (IWPSD – 2017), New Delhi, India, 11-15 Dec, 2017.

[3] Prashant R. Ghediya, Tapas K. Chaudhuri and Jaymin R. Ray, “Effect of light on hopping conduction in kesterite CZTS thin films”, AIP conference proceedings 1728 (2016) 020020, International Conference on Condensed Matter & Applied Physics (ICC 2015), Govt. Engineering College, Bikaner, India, 30-31 Oct, 2015.

[2] Prashant R. Ghediya and Tapas K. Chaudhuri, “Temperature dependence electrical conduction of solution-processed CZTS films in dark and under light”, IOP Conf. Series: Materials Science and Engineering 149 (2016) 012162, International Conference on Advances in Materials and Manufacturing Applications (IConAMMA), Amrita Vishwa Vidyapeetham University, Bengaluru, India, 14-16 July, 2016.

[1] Prashant R. Ghediya and Tapas K Chaudhuri, “Electrical properties of CZTS pellets made from microwave-processed powder”, AIP conference proceedings 1665 (2015) 120032, 59th DAE Solid State Physics Symposium, VIT University, Vellore, India,16-20 Dec, 2014.

招待講演 (3)

[3] Versatility of molecular ink: ‘Deposition of new emerging materials to fabrication of solar cells’, XV Workshop on Physics of Condensed and Molecular Matter organized by Science Research Centre, Autonomous University of the State of Morelos, Mexico, June 21-23, 2021.

[2] Expert talk on webinar ‘Research: Importance & Outcomes’ organized by Applied Science and Humanities Department, Government Engineering College (GEC), Valsad, Gujarat, India, 26 May 2020.

[1] Sneha I. Solanki, I. B. Patel, J. D. Baraliya and Prashant R. Ghediya, “Preparation of Bi2S3 Nanoparticles by High-Energy Ball Milling Technique”, IOP Theory meets experiments: molecular nanoscience and applications, University College London, London, UK, 1-3 June, 2015.

学会発表 (16)

[16] Prashant Ghediya, Yusaku Magari, Takashi Endo, Mamoru Furuta, Yuqiao Zhang, Yasutaka Matsuo, Hiromichi Ohta, “Reliable Device Operation in High-Mobility Indium Oxide Thin Film Transistors”, 2024年 第71回 応用物理学会春季学術講演会, 東京都市大学 世田谷キャンパス,東京, 2024年3月22日-25日.

[15] Prashant Ghediya, Yusaku Magari, Yuqiao Zhang, Yasutaka Matsuo, Hiromichi Ohta, “[S2-O202-04] Origin of the Instability of High-Mobility Polycrystalline In2O3:H-based Thin Film Transistors”, MRM2023, Kyoto, Japan, December 11-16, 2023. (oral)

[14] Prashant Ghediya, Yusaku Magari, Yuqiao Zhang, Yasutaka Matsuo, and Hiromichi Ohta, “Stability improvement of high-mobility In2O3:H TFTs by yttria passivation”, The Mini-Workshop on Functional Materials Science (Organizers’ meeting), Sapporo, Japan, December 1-2, 2023. (Poster)

[13] Prashant Ghediya, Yusaku Magari, Yuqiao Zhang, Yasutaka Matsuo, Hiromichi Ohta, “Negative Bias Stability Improvement of In2O3:H TFTs by Yttria Passivation”, 第84回 応用物理学会秋季学術講演会「イオントロニクスにおける酸化物・カルコゲナイトの新機能」, 熊本城ホールほか3会場, 2023年9月19日-23日

[12] ゲディアプラシャント, 曲 勇作, 楊 卉, 張 雨橋, 松尾保孝, 太田裕道, “高背圧下PLDにより作製した高移動度In2O3薄膜を活性層とするTFT”, “全固体電気化学熱トランジスタ”, 第70回 応用物理学会 春季学術講演会, 上智大学 四谷キャンパス+オンライン, 2023年3月15日-18日

[11] Prashant R. Ghediya, Hui Yang, Takashi Fujimoto, Yuqiao Zhang, Yasutaka Matsuo, Hiromichi Ohta, “Electric Field Thermopower Modulation Analyses of the Operation Mechanism of Amorphous InGaO3(ZnO)m Thin Film Transistors”, 7th International Conference on Advances in Functional Materials (AFM 2023), Fukuoka, Japan, January 9-12, 2022 (Oral)

[10] Prashant Ghediya, Hui Yang, Takashi Fujimoto, Yuqiao Zhang, Yasutaka Matsuo, Hiromichi Ohta, “Electric Field Thermopower Modulation Analyses of Effective Channel Thickness of Amorphous InGaO3(ZnO)m Thin Film Transistors”, The 29th International Display Workshops (IDW ’22), Fukuoka, Japan, December 14-16, 2022 (poster). Outstanding Poster Paper Award

[9] Prashant Ghediya, Hui Yang, Takashi Fujimoto, Yuqiao Zhang, Yasutaka Matsuo, Yusaku Magari, and Hiromichi Ohta
, “Electric Field Thermopower Modulation Analyses of Operation Mechanism of InGaO3(ZnO)m Thin Film Transistors”, The 23rd RIES-Hokudai International Symposium 拓 [Taku], Sapporo, Japan, December 5-6, 2022.

[8] Prashant R. Ghediya, Hui Yang, Takashi Fujimoto, Yuqiao Zhang, Yasutaka Matsuo, Hiromichi Ohta, “Electric Field Thermopower Modulation Analyses of InGaO3(ZnO)m (m = 1-30) Thin Film Transistors”, 薄膜材料デバイス研究会 第19回研究集会 in 京都, 龍谷大学響都ホール(京都府京都市), 2022年11月17日-18日.

[7] Prashant R. Ghediya, “Ultrasonic Spray Coating of CZTS and CCdTS films for tandem solar cells”, The 12th European Kesterite+ Workshop organized by Technical University of Denmark (DTU), Copenhagen, Denmark, February 9-11, 2022

[6] Prashant R. Ghediya, “CuCdS2 thin films for solar cells”, Science Symposium – 2020 on Recent Trends in Science and Technology, Christ College, Rajkot, Gujarat, India, 19th January 2020. (BEST POSTER AWARD)

[5] Prashant R. Ghediya and Tapas K. Chaudhuri, “Cu2ZnSnS4 films deposited from nano-ink for solar photovoltaics”, International Conference on Nanoscience and Technology (ICONSAT 2018), Indian Institute of Science Campus (IISc) Bengaluru, Karnataka, 21-23 March, 2018.

[4] Prashant R. Ghediya, “Copper zinc tin sulphide (CZTS) as a potential absorber for thin films solar cells”, Engineer’s Day Celebration – Research Work Presentation, 15 September, 2016, Marwadi University, Rajkot, Gujarat, India.

[3] Prashant R. Ghediya and Tapas K. Chaudhuri, “Electrical properties of CZTS films for solar cells”,
National Conference on Recent Trend in Science of Materials (NCSM-2k15), The M S University of Baroda, Gujarat, 28-30 December, 2015.

[2] Prashant R. Ghediya and Tapas K. Chaudhuri, “Low-temperature transport properties of CZTS prepared from ink”, Science Meet – 2014, Charusat, Changa, 09 November, 2014.

[1] Prashant R. Ghediya, Devendra Tiwari and Tapas K Chaudhuri, “Cu2ZnSnS4 films deposited from paste for low-cost solar cells”, XXVII Gujarat Science Congress – 2013, Charusat, Changa, 24 February, 2013. (BEST POSTER AWARD)

特許 (1)

[1] 太田裕道, 曲 勇作, ゲディア プラシャント ラマニクラル, “薄膜トランジスタ”, 特願2023-185660, 2023年10月30日出願

受賞 (5)

[5] The Charusat Research Paper Award 2023, Title: Electrical properties of Ag/p-Cu2NiSnS4 thin film Schottky diode, Authors: Prashant R. Ghediya*, Yash M. Palan, Drashti P. Bhangadiya, Ishrat I. Nakani, Tapas K. Chaudhuri, Kinjal Joshi, C. K. Sumesh, Jaymin Ray, Publication: Materials Today Communications 28 (2021) 102697

[4]  Prashant Ghediya, Outstanding Poster Paper Award, The 29th International Display Workshops (IDW ’22), Prashant Ghediya, Hui Yang, Takashi Fujimoto, Yuqiao Zhang, Yasutaka Matsuo, Hiromichi Ohta, “Electric Field Thermopower Modulation Analyses of Effective Channel Thickness of Amorphous InGaO3(ZnO)m Thin Film Transistors”, The 29th International Display Workshops (IDW ’22), Fukuoka, Japan, December 14-16, 2022 (poster). Certificate

[3] Prashant R. Ghediya, “Copper tin sulphide (CTS) absorber for photovoltaic applications”, National Science Day 2022, Marwadi University, Rajkot, India, 28 February 2022.  POSTER AWARD

[2] Prashant R. Ghediya, “CuCdS2 thin films for solar cells”, Science Symposium – 2020 on Recent Trends in Science and Technology, Christ College, Rajkot, Gujarat, India, 19th January 2020.  BEST POSTER AWARD

[1] Prashant R. Ghediya, Devendra Tiwari and Tapas K Chaudhuri, “Cu2ZnSnS4 films deposited from paste for low-cost solar cells”, XXVII Gujarat Science Congress – 2013, Charusat, Changa, 24 February, 2013. BEST POSTER AWARD