yuqiaozhang0730(at)gmail.com居室：北キャンバス電子科学研究所 3F 03-106 TEL : 011-706-9433 / FAX : 011-706-9432研究キーワード:熱電変換材料，反応性固相エビタキシャル成長法©0000-0001-7579-4923
略歴JSPS Postdoctoral Fellow, April 2019 – current Ph. D., Graduate School of Information Science and Technology, Hokkaido University, April 2016 – March 2019 (supervisor: Prof. Hiromichi Ohta) Research student, Research Institute for Electronic Science, Hokkaido University, October 2015 – March 2016 M.E., School of Materials Science and Engineering, University of Science and Technology Beijing (USTB), September 2012 – January 2015 (supervisor: Prof. Bo-Ping Zhang) B.E., School of Materials Science and Engineering, University of Jinan, September 2008 – July 2012
原著論文
[14] Hai Jun Cho*, Yuzhang Wu, Yuqiao Zhang, Bin Feng, Masashi Mikami, Woosuck Shin, Yuichi Ikuhara, Yu-Miin Sheu, Keiji Saito, and Hiromichi Ohta*, "Anomalously Low Heat Conduction in Single-Crystal Superlattice Ceramics Lower than Randomly Oriented Polycrystals", Adv. Mater. Interfaces 2001932 (2021). (February 15, 2021) (DOI: 10.1002/admi.202001932) [13] Yugo Takashima, Yu-qiao Zhang*, Jiake Wei, Bin Feng, Yuichi Ikuhara, Hai Jun Cho, and Hiromichi Ohta*, "Layered cobalt oxide epitaxial films exhibiting thermoelectric ZT = 0.11 at room temperature", J. Mater. Chem. A 9, 274 – 280 (2021). (October 13, 2020) (DOI: 10.1039/D0TA07565E). [12] Dou-dou Liang*, Yu-qiao Zhang, Hai Jun Cho and Hiromichi Ohta*, "Electric field thermopower modulation analyses of the operation mechanism of transparent amorphous SnO, thin-film transistor", Appl. Phys. Lett. 116 , 143503 (2020). (April 8, 2020) (DOI: 10.1063/5.0003153)  arXiv [11] Seung Gyo Jeong, Taewon Min, Sungmin Woo, Jiwoong Kim, Yu-Qiao Zhang, Seong Won Cho, Jaeseok Son, Young-Min Kim, Jung Hoon Han, Sungkyun Park, Hu Young Jeong, Hiromichi Ohta, Suyoun Lee, Tae Won Noh, Jaekwang Lee* and Woo Seok Choi*, "Phase Instability amid Dimensional Crossover in Artificial Oxide Crystal", Phys. Rev. Lett. 124 , 026401 (2020). (January 13th, 2020)   (DOI: 10.1103/PhysRevLett.124.026401) [10] Yuqiao Zhang*, Kenyu Sugo, Hai Jun Cho, and Hiromichi Ohta*, "Thermoelectric Phase Diagram of the SrTiO, – LaTiO, Solid-Solution System through a Metal to Mott Insulator Transition", J. Appl. Phys. 126, 075104 (2019). (August 15, 2019) (DOI: 10.1063/1.5100993) [9] Gowoon Kim, Yu-Qiao Zhang, Taewon Min, Hoyoung Suh, Jae Hyuck Jang, Hyeonjun Kong, Joonhyuk Lee, Jaekwang Lee, Tae-Yeol Jeon, Inwon Lee, Jinhyung Cho, Hiromichi Ohta* and Hyoungjeen Jeen*, "Extremely light carrier effective mass in a distorted simple metal oxide", Adv. Electron. Mater. 5, 1800504 (2019). (December 7, 2018) (DOI: 10.1002/aelm.201800504) [8] Yuqiao Zhang, Bin Feng, Hiroyuki Hayashi, Cheng-Ping Chang, Yu-Miin Sheu, Isao Tanaka, Yuichi Ikuhara & Hiromichi Ohta, "Double thermoelectric power factor of a 2D electron system", Nature Communications 9 , 2224 (2018). (DOI: 10.1038/s41467-018-04660-4)詳細[7] Yukio Nezu, Yu-Qiao Zhang, Chunlin Chen, Yuichi Ikuhara, and Hiromichi Ohta, "Solid-phase epitaxial film growth and optical properties of a ferroelectric oxide, Sr 2 Nb 2 O ;", J. Appl. Phys. 122 , 135305 (2017). (DOI: 10.1063/1.4997813) [6] Yuqiao Zhang, Bin Feng, Hiroyuki Hayashi, Tetsuya Tohei, Isao Tanaka, Yuichi Ikuhara, and Hiromichi Ohta, "Thermoelectric phase diagram of the SrTiO 3 -SrNbO 3 solid solution system", J. Appl. Phys. 121 , 185102-1-7(2017). (DOI: 10.10631/1.4983359) [5] Yu-Qiao Zhang, Shun Li, and Bo-Ping Zhang, "Controllable synthesis of Bi ⁄ S ⁄ CuS heterostructures by an in situ ion-exchange solvothermal process and their enhanced photocatalytic performance", RSC Advances 6 , 103215-103223 (2016). (DOI: 10.1039/C6RA19365J) [4] Su-Wei Zhang, Bo-Ping Zhang, Shun Li, Li-Feng Zhu, and Yu-Qiao Zhang, Chinese Journal of Inorganic Chemistry 31, 2135-2142 (2015). [3] D.-B. Zhang, B.-P. Zhang, P.-P. Shang, C. Gao, and Y.-Q. Zhang, "Effect of ZnAl,O, phase on thermoelectric properties of AI doped ZnO ceramics fabricated by spark plasma sintering", Materials Research Innovations 18 , 110-115 (2014). (DOI: 10.1179/1432891714Z.00000000653) [2] Yu-Qiao Zhang, Bo-Ping Zhang, and Li-Feng Zhu, "Monodisperse CuS nanodisks: low-temperature solvothermal synthesis and enhanced photocatalytic activity", RSC Advances 4 , 59185 (2014). (DOI: 10.1039/c4ra06274d) [1] Yu-Qiao Zhang, Bo-Ping Zhang, Zhen-Hua Ge, Li-Feng Zhu, and Yan Li, “Preparation by Solvothermal Synthesis, Growth Mechanism, and Photocatalytic Performance of CuS Nanopowders", European Journal of Inorganic Chemistry 2368-2375 (2014). (DOI: 10.1002/ejic.201400098)
解説・総説
[2] Yuqiao Zhang and Hiromichi Ohta, “Electron sandwich doubles the thermoelectric power factor of SrTiO 3", Phys. Status Solidi A , 1800832 (2019). (DOI: 10.1002/pssa.201800832) Back cover [1]太田裕道,張雨橋, “薄い電子層を絶縁体でサンドイッチ：熱電変換特性を高める方法”，車載テクノロジー  6[5], 26 (2019) [1] Yu-qiao Zhang and Hiromichi Ohta, "2D thermoelectrics", 2D Nanomaterials for Energy Applications (1st Edition) (Elsevier) (November 1st, 2019).
招待講演(1)
[1] Hiromichi Ohta, Yu-Qiao Zhang, "Double enhancement of thermoelectric power factor in oxide two- dimensional electron system via precise dimensionality control", 2017 Fall Korean Physical Society (KPS) Meeting, Gyeongju, Korea, 25-27 October, 2017 (Invited)
プレゼンテーション (23)
[23] Yuqiao Zhang, Hai Jun Cho and Hiromichi Ohta, "Electron and heat transport properties of BaTiO, – BaNbO, solid solution epitaxial films", The 21st RIES-Hokudai International Symposium間 [ma], online, December 10-11, 2020 (poster). [22]張雨橋,高嶋佑伍,魏家科,馮斌,幾原雄一,ジョヘジュン,太田裕道, “室温で熱電変換性能指数ZT = 0.11を示す層状コバルト酸化物エビタキシャル薄膜”,第14回物性科学領域横断研究会,オンライン, 2020年12月4日-5日（口頭[21] Y. Zhang, H.J. Cho, K. Sugo, M. Mikami, S. Woo, M.-C. Jung, Y.-H. Zhuang, B. Feng, Y.-M. Sheu, W. Shin, W.S. Choi, M.J. Han, Y. Ikuhara, and H. Ohta, "Branching of Electrical and Thermal Conductivities in La- and Nb-substituted SrTiO¸", Virtual Conference on Thermoelectrics (VCT 2020), online event, July 21- 23, 2020. [20] Y. Zhang, H.J. Cho, K. Sugo, M. Mikami, S. Woo, M.-C. Jung, Y.H. Zhuang, Y-M. Sheu, W. Shin, W.S. Choi, M.J. Han, and H. Ohta, “Zero contribution of conduction electrons in the thermal conductivity of a metallic conductor", The 3rd Workshop on Functional Materials Science, Sapporo, Japan, December 18th- 20th, 2019.   (Poster) [19] Yuqiao Zhang, Hai Jun Cho, Kenyu Sugo, Masashi Mikami, Sungmin Woo, Myung-Chul Jung, Woosuck Shin, Woo Seok Choi, Myung Joon Han, and Hiromichi Ohta, "High and Low Thermal Conductivity Phase Boundary in SrTiO, – SrNbO, Solid-Solution System", 2019 MRS Fall Meeting & Exhibit, Boston, MA, December 1-6, 2019. [18] Yuqiao Zhang, Hai Jun Cho, Kenyu Sugo, Masashi Mikami, Sungmin Woo, Myung-Chul Jung, Woosuck Shin, Woo Seok Choi, Myung Joon Han, and Hiromichi Ohta, "High and Low Thermal Conductivity Phase Boundary in SrTiO 3 – SrNbO 3 Solid-Solution System", 2019年第80回応用物理学会秋季学術講演会，北海道大学札幌キャンバス, 北海道札幌市, 2019年9月18日-21日[17] Y. Zhang, H.J. Cho, M. Mikami, S. Woo, M. Jung, W.S. Shin, W.S. Choi, M.J. Han, and H. Ohta, "Anomalous change of heat transfer in Sr(Ti,Nb)O, solid solution", 2019年第66回応用物理学会春季学術講演会,東京工業大学大岡山キャンバス(東京都目黒区), 2019年3月9日-12日[16] Y. Zhang, H.J. Cho, M. Mikami, W.S. Shin, W.S. Choi, H. Ohta, "Phase transition induced anomalous phonon transports in SrTiO 3 –SrNbO 3 system", The 19th RIES-HOKUDAI International Symposium組[So], Jozankei View Hotel, Sapporo, December 11th-12th, 2018 (Poster) [15] Y. Zhang, H.J. Cho, M. Mikami, W.S. Shin, W.S. Choi, and H. Ohta, "Anomalous phonon transport in SrTi, „NbxO, alloy”, The 2nd Workshop on Functional Materials Science, Busan, South Korea, October 22-23, 2018 [14] Yuqiao Zhang, Bin Feng, Hiroyuki Hayashi, Cheng-Ping Chang, Yu-Miin Sheu, Isao Tanaka, Yuichi Ikuhara, and Hiromichi Ohta, "Double thermoelectric power factor of a 2D electron system, SrTiOِ-based superlattice",日本セラミックス協会第31回秋季シンポジウム,名古屋工業大学（愛知）, 2018年9月5日-7日[13] Yuqiao Zhang, Bin Feng, Hiroyuki Hayashi, Cheng-Ping Chang, Yu-Miin Sheu, Isao Tanaka, Yuichi Ikuhara, Hiromichi Ohta, "Double thermoelectric power factor of a 2D electron system", The first International Joint Symposium of CEFMS-NCTU, RCAS-AS (Taiwan) and 5-Star Alliance (Japan), National Chiao Tung University, Taiwan, 18th-20th May, 2018 [12] Y. Zhang, B. Feng, H. Hayashi, I. Tanaka, Y. Ikuhara, and H. Ohta, "Double enhancement o thermoelectric power factor in advanced oxide two-dimensional electron system", 2018 MRS Spring Meeting & Exhibit, Phoenix, Arizona, 2-6 April, 2018 (Oral) [11] Y. Zhang, B. Feng, H. Hayashi, I. Tanaka, Y. Ikuhara, and H. Ohta, "Double enhancement of thermoelectric power factor in advanced oxide two-dimensional electron system", The 18th RIES-Hokudai_ International Symposium 極 [Kyoku], Chateraise Gateaux Kingdom Sapporo, Sapporo, Japan, 30 Nov.-1 Dec. 2017 (Poster) [10] Yuqiao Zhang, Bin Feng, Hiroyuki Hayashi, Isao Tanaka, Yuichi Ikuhara and Hiromichi Ohta, “Large enhancement in effective thermoelectric power factor of Sr(Ti,Nb)O, superlattice",平成29年度日本セラミックス協会東北北海道支部研究発表会, Sendai, Japan, 1-2 November, 2017 (Oral) [9] Y. Zhang, B. Feng, H. Hayashi, T. Tohei, I. Tanaka, Y. Ikuhara, and H. Ohta, "Thermoelectric Performance of SrTi, „Nb,O 5 System (Bulk and Superlattices)”, IUMRS-ICAM 2017 (The 15th International Conference on Advanced Materials), Yoshida Campus, Kyoto University, Kyoto, Japan, 27 Aug.-1 Sep. 2017 (Oral). [8] Yu-Qiao Zhang, Feng Bin, Yuichi Ikuhara, and Hiromichi Ohta, "Thermoelectric power factor of Sr(Ti,Nb)O,/SrTiO, superlattices",新学術領域研究「ナノ構造情報のフロンティア開拓一材料科学の新展開｣第５回若手の会, Tokyo, Japan, 25-26  July, 2017 (Poster) [7] Yu-Qiao Zhang and Hiromichi Ohta, "Effective power factor of Sr(Ti,Nb)O,/SrTiO, superlattices",第64回応用物理学会春季学術講演会, Yokohama, Japan, 14-17 March, 2017 (Oral) [6] Yu-Qiao Zhang and Hiromichi Ohta, "Improvement of thermoelectric power factor of heavily Nb-doped SrTiO, superlattices",第52回応用物理学会北海道支部/第13回日本光学会北海道支部合同学術講演会, Kitami, Japan, 7-8 January, 2017 (Oral) [5] Y. Zhang, T. Katase, T. Onozato, B. Feng, H. Hayashi, T. Tohei, I. Tanaka, Y. Ikuhara, and H. Ohta, "Thermoelectric properties of SrTiO,-SrNbO, full range solid solutions", The 17th RIES-Hokudai International Symposium 楽 [Ju], Chateraise Gateaux Kingdom Sapporo, Sapporo, Japan, 13-14 Dec. 2016 (Poster) [4] Y. Zhang, T. Onozato, T. Katase, and H. Ohta, "Thermoelectric properties of SrTiO,-SrNbO, full range solid solutions", International Workshop on Oxide Electronics 23, Nanjing International Conference Hotel, Nanjing, China, 12-14 Oct. 2016 (poster) [3] Yuqiao Zhang, Takaki Onozato, Takayoshi Katase, Hiromichi Ohta, “Electron transport properties of SrTiO¸-SrNbO¸ full range solid solutions”, HOKUDAI-NCTU International Joint Symposium on Nano, Opto and Bio Sciences, Hokkaido University, Sapporo, Japan, 4-5 Oct. 2016 (poster) [2] Yuqiao Zhang, Takayoshi Katase, Takaki Onozato, Bin Feng, Hiroyuki Hayashi, Tetsuya Tohei, Isao Tanaka, Yuichi Ikuhara, Hiromichi Ohta, "Hidden Electronic Phase Boundary in the SrTiO 3 –SrNbO, Solid- solution System",  2016年第77回応用物理学会秋季学術講演会, Niigata, Japan, 13-16 September, 2016 (Poster) [1] Y. Zhang, T. Katase, T. Onozato, B. Feng, H. Hayashi, T. Tohei, I. Tanaka, Y. Ikuhara and H. Ohta, “Electron transport properties of SrTiO 3 -SrNbO 3 full range solid-solution epitaxial films”,新学術領域研究Гナノ構造情報のフロンティア開拓一材料科学の新展開｣第４回若手の会, Ibaraki, Japan, 25-26 July, 2016 (Poster)
報道
[1]日刊工業新聞,「電子閉じ込めで熱電変換向上北大」, 2018年6月21日 27面[2] OPTRONICS ONLINE, “北大、熱電変換材料の性能を2倍にできることを実証”, 2018年6月21日[3] Fabcross for エンジニア, "熱電材料の性能を従来比2倍に増強一北大、電子を狭い空間に閉じ込め熱電材料を高性能化する理論を実証”, 2018年6月22日[4] “Electron Sandwich Doubles Thermoelectric Performance”, I Connect 007, June 20, 2018 [5] “Electron Sandwich Doubles Thermoelectric Performance”, Chem Europe.com, June 21, 2018 [6] “Electron Sandwich Doubles Thermoelectric Performance”, Tech Explorist, June 20, 2018 [7] “Electron Sandwich Doubles Thermoelectric Performance”, Photonics Online, June 20, 2018 [8] “Electron Sandwich Doubles Thermoelectric Performance”, Spinoff.com, June 20, 2018 [9] “Electron Sandwich Doubles Thermoelectric Performance”, Phys.org, June 20, 2018 [10] “Artificial Superlattice Yields Higher Voltage and Improves Thermoelectric Conversion Rate”, AZO Materials, June 21, 2018 [11] "Electron sandwich doubles thermoelectric performance", EurekAlert!, June 20, 2018 [12] "Electron sandwich doubles thermoelectric performance", Science Daily, June 20, 2018 [13] "交通大學與北海道大學跨校合作研發電子三明治使熱電性能倍増", National Chiao Tung University, June 20, 2018 [14] "Electron sandwich doubles the thermoelectric performance!", Device & Materials Engineering, Nature Research, June 20, 2018 [15] "Electron sandwich doubles thermoelectric performance", Science & Technology Research News, June 20, 2018 [16] “Electron sandwich doubles thermoelectric performance”, Revolution Green, June 21, 2018 [17] "Electron sandwich doubles thermoelectric performance, BrightSurf.com, June 20, 2018 [18] "Electron sandwich doubles thermoelectric efficiency (News)", PressCute.com, June 20, 2018 [19] "Electron sandwich doubles thermoelectric performance", Green Car Congress, June 25, 2018 [20] "Electron sandwich doubles thermoelectric performance", Innovations Report, June 20, 2018 [21] “Artificial Superlattice Yields Higher Voltage and Improves Thermoelectric Conversion Rate”, Converter News, June 21, 2018 [22] "Tech: Electron sandwich doubles thermoelectric performance — (Report)", TuniseSoir News, June 20, 2018 [23] “Electron sandwich doubles thermoelectric performance”, Nanowerk, June 20, 2018 [24] “Electron sandwich doubles thermoelectric performance”, Programming News Payments & Trade Networks, June 27, 2018 [25] “Electron sandwich doubles thermoelectric performance”, Technology News, June 20, 2018 [26] “Electron sandwich doubles thermoelectric performance”, ECN, June 20, 2018 [27] "Thermoelectric performnce doubles in electron sandwich", New Energy and Fuel, June 27, 2018 [28] “Researches Improve Ability Of Material To Convert Heat Into Electricity”, Chem Info, June 21, 2018 [29]日刊工業新聞,「車の廃熱再利用」, 2018年6月28日[30] dmenuニュース,「自動車エンジンまわりの熱を電気に変換する材料開発へ」, 2018年6月28日[31] "Nature子刊：研究人员将热电材料的转化效率提高了一倍多",中国材料网, June 25, 2018 [32] “Nature子刊：研究人员将热电材料的转化效率提高了一倍多”,中国科学院上海硅酸盐研究所, June 27, 2018 [33] "Hokkaido University design sandwich structure enhances electron diffusion capability", June 28, 2018 [34] “Superlattice ‘Sandwich’ Converts Wasted Heat To Electricity”, Asian Scientist Newsroom, July 4, 2018 [35]国立環境研究所,「北海道大など、熱電変換材料の性能を増強する理論（2016年提案）を実証」, 2018年7月10日[36]マイナビニュース,「電子を「ギュッ」と閉じ込めると、熱電材料の性能が倍増した-京大 J, 2018年7月11日[37]日本経済新聞プレスリリース,「京大など、熱を電気に変換する熱電材料の性能が狭い空間に電子を閉じ込めることで従来比の2倍に増強できることを実証」, 2018年7月10日[38] EE Times Japan,「電子を閉じ込めて性能が2倍、熱電材料の新理論を実証」, 2018年7月13日[39]読売新聞ONLINE,「捨てられている熱を電気に変える熱電変換材料」, 2018年8月13日[40] fabcross forエンジニア, “過去最高の熱電変換性能指数を示す層状コバルト酸化物を実現——安定で実用的な熱電変換材料として期待北海道大学" (2020.11.04) [41]マイナビニュース, "北大、室温において過去最高クラスの熱電変換性能を持つ物質を実現" (2020.11.04) [42]ニコニコニュース, "北大、室温において過去最高クラスの熱電変換性能を持つ物質を実現" (2020.11.04) [43]グノシー, "北大、室温において過去最高クラスの熱電変換性能を持つ物質を実現" (2020.11.04) [44]日本の研究.comニュース, “【注目プレスﾘﾘース】金属酸化物における過去最高の室温熱電変換性能指数一安定で実用的な熱電変換材料の実現に大きな期待一/ 北海道大学" (2020.11.04) [45] Mapionニュース, "北大、室温において過去最高クラスの熱電変換性能を持つ物質を実現" (2020.11.04) [46]楽天Infoseek News, "北大、室温において過去最高クラスの熱電変換性能を持つ物質を実現" (2020.11.04) [47] NEWS Collect, “北大、室温において過去最高クラスの熱電変換性能を持つ物質を実現” (2020.11.04) [48] gooニュース, "北大、室温において過去最高クラスの熱電変換性能を持つ物質を実現" (2020.11.04) [49] BOGLOBEニュース, "北大、室温において過去最高クラスの熱電変換性能を持つ物質を実現" (2020.11.04) [50] Phys.org, "Researchers develop layered cobalt oxide with a record-setting thermoelectric figure of merit" (2020.12.23) [51] EurekAlert!, "Record-setting thermoelectric figure of merit achieved for metal oxides" (2020.12.22) [52] AZO Materials, "New Layered Cobalt Oxide Exhibits Highest-Ever Thermoelectric Figure of Merit" (2020.12.23) [53] FLORIDA NEWS TIMES, "Researchers are developing layered cobalt oxide with a record thermoelectric figure of merit" (2020.12.24) [54] Newsbeezer.com, "The researchers are developing layered cobalt oxide with a record-breaking thermoelectric figure of merit" (2020.12.24) [55] Asia Research News, "Record-setting thermoelectric figure of merit achieved for metal oxides" (2020.12.24) [56] fooshya.com, "Researchers develop layered cobalt oxide with a record-setting thermoelectric determine of advantage" (2020.12.23) [57] BrightSurf Science News, "Record-setting thermoelectric figure of merit achieved for metal oxides" (2020.12.22) [58] Science Magazine, "Record-Setting Thermoelectric Figure Of Merit Achieved For Metal Oxides" (2020.12.23) [59] The Human Exposome Project, “Record-setting thermoelectric figure of merit achieved for metal oxides" (2020.12.22) [60] ZENITH NEWS, "Researchers develop layered cobalt oxide with a record-setting thermoelectric figure of merit" (2020.12.23) [61] X-MOL, "Layered cobalt oxide epitaxial films exhibiting thermoelectric ZT = 0.11 at room temperature" (2020.10.13) [62] TIMES NEWS EXPRESS, "Record-setting thermoelectric figure of merit achieved for metal oxides" (2020.12.22) [63] iEmpresarial, “Record-setting thermoelectric figure of merit achieved for metal oxides” (2020.12.26) [64] Nanotechnology Now, "Record-setting thermoelectric figure of merit achieved for metal oxides" (2020.12.29) [65] Health Medicine Network, "Record-setting thermoelectric figure of merit achieved for metal oxides" [66] Bioengineer.org, "Record-setting thermoelectric figure of merit achieved for metal oxides" (2020.12.23) [67] Nanowerk, “Record-setting thermoelectric figure of merit achieved for metal oxides” (2020.12.23) [468] Science Codex, "Record-setting thermoelectric figure of merit achieved for metal oxides" (2020.12.22) [69] MIRAGE, “Record-setting thermoelectric figure of merit achieved for metal oxides” (2020.12.23) [70] AlphaGalileo, "Record-setting thermoelectric figure of merit achieved for metal oxides" (2020.12.23) [2]第50回北海道大学電子科学研究所松本・羽鳥授学賞 (2021.2.18) [1]北海道大学大学院情報科学研究科,研究科長賞(2020.3)