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DONG HAI WANG Last modified date:2017.05.15

Assistant Professor / Thermal engineering
Department of Mechanical Engineering
Faculty of Engineering




E-Mail
Homepage
http://www.mech.kyushu-u.ac.jp/~hmt/HMT_lb_en.html
Homepage of our Heat and Mass Transfer Lab .
Academic Degree
PhD degree of Mechanical Engineering
Field of Specialization
Heat and Mass Transfer
Outline Activities
My research is now focused on the MEMS technology, biothermal science, measurement of thermal properties of nanomaterials and study of heat conduction mechanisms at nanoscales. My education work is to teach and guide both undergraduate and graduate students in their research related with heat and mass transfer. I serve and contribute to the societies through participating different academic activities of Heat Transfer Society of Japan and Japan Society of Mechanical Engineers.
Research
Research Interests
  • My research is now focused on the measurement of thermal properties of nanomaterials (carbon nanotubes, graphene, nanofilms, etc) using MEMS technology, study of heat conduction mechanisms at nanoscales, biothermal science.
    keyword : MEMS technology, thermal properties of nanomaterials, biothermal science
    2014.01~2017.12.
Current and Past Project
  • Now the DNS sequencing market has become more than 680 billion yen. For the third generation sequencing technology, the Single Molecule Real Time Sequencing (SMRT) has been developed. In order to realize SMRT, this project aims to suspend single layer of graphene (0.334nm thickness) with a nanopore for a single DNA molecule to pass through. The base order of DNA molecule can be decided by detecting the electrical current signal change of the graphene. This method has much higher S/N ratio than the present 25nm thick graphene/SiNx membrane.
  • Graphene has ultra-high thermal conductivity, it has a great potential to be used as heat spreader for electronic devices. However, graphene has to be supported on substrate for applications because of its one-atom thickness. The interaction between the graphene and substrate may significantly reduce its thermal conductivity and affect the performance as heat spreader. In order to understand the interface effect of graphene and develop effective graphene heat spreaders, a T-type sensor is developed in this research for measuring the heat transport in graphene.
Academic Activities
Papers
1. DONG HAI WANG, Xing Zhang, Hiroshi Takamatsu, Ultraclean suspended monolayer graphene achieved by in situ current annealing, Nanotechnology, 28, 045706, 2016.12.
2. DONG HAI WANG, Kosaku Kurata, Takanobu Fukunaga, Hiroshi Takamatsu, Xing Zhang, Simultaneous measurement of electrical and thermal conductivities of suspended monolayer graphene, Journal of Applied Physics, 119, 2016.08.
3. DONG HAI WANG, Kosaku Kurata, Takanobu Fukunaga, Hiroshi Takamatsu, Xing Zhang, A general method of fabricating free-standing, monolayer graphene electronic device and its property characterization, Sensors and Actuators A: Physical, 247, 2016.05.
4. DONG HAI WANG, Kosaku Kurata, Takanobu Fukunaga, Hiroshi Takamatsu, Xing Zhang, Width depended intrinsic thermal conductivity of suspended monolayer graphene, International Journal of Heat and Mass Transfer, 105, 2017.01.
5. DONG HAI WANG, Kosaku Kurata, Takanobu Fukunaga, Hiroshi Takamatsu, Xing Zhang, Tatsuya Ikuta, Koji Takahashi, Takashi Nishiyama, Hiroki Ago, Yasuyuki Takata, In-situ measurement of the heat transport in defect-engineered free-standing single-layer graphene, Scientific Reports, 6, 21823, 2016.02.
6. DONG HAI WANG, Kosaku Kurata, Takanobu Fukunaga, Hiroshi Takamatsu, Xing Zhang, Tatsuya Ikuta, Koji Takahashi, Takashi Nishiyama, Hiroki Ago, Yasuyuki Takata, A simple method for fabricating free-standing large area fluorinated single-layer graphene with size-tunable nanopores, Carbon, 99, 2016.01.
Presentations
1. DONG HAI WANG, Hiroshi Takamatsu, Xing Zhang, Width-dependent thermal conductivity of suspended single- layer graphene, 1st Asian Conference on Thermal Science , 2017.03.28.
2. DONG HAI WANG, Koji Takahashi, Hiroshi Takamatsu, Xing Zhang, Highly sensitive charge mobility of suspended monolayer graphene, 6 th International Symposium on Micro and Nano Technology, 2017.03.21.
3. DONG HAI WANG, Hisada Kosuke, Kosaku Kurata, Fukunaga Takanobu, Hiroshi Takamatsu, Feasibility of using micro-beam sensor for gas detection, size effect on heat conduction to gases, 1st Pacific Rim Thermal Engineering Conference , 2016.03.15.
4. DONG HAI WANG, Hiroshi Takamatsu, Koji Takahashi, Xing Zhang, Effect of nanohole defect on the thermal conductivity of free-standing single-layer graphene
, 11th Asian Thermophysical Properties Conference, ATPC2016, 2016.10.04.
5. DONG HAI WANG, Hiroshi Takamatsu, Width dependent thermal conductivity of suspended monolayer graphene, The Eighth KAIST-Kyushu University Joint Workshop 2016, 2016.09.23.
6. DONG HAI WANG, Kosaku Kurata, Hiroshi Takamatsu, Takanobu Fukunaga, Thermal conductivity of suspended monolayer graphene measured by a T-type sensor, 第53回日本伝熱シンポジウム, 2016.05.25.
7. DONG HAI WANG, Kento Inui, Takanobu Fukunaga, Kosaku Kurata, Hiroshi Takamatsu, Measuring thermal conductivity of gases and liquids ranged from 0.03 to 0.6 w/(m k) using a single micro-beam sensor, 日本熱物性学会, 2015.10.20.
8. DONG HAI WANG, Kento Inui, Takanobu Fukunaga, Kosaku Kurata, Hiroshi Takamatsu, Measurement of liquid thermal conductivity using a micro-beam MEMS sensor, 日本伝熱学会, 2015.06.04.
Membership in Academic Society
  • Japan Society of Mechanical Engineers (JSME)
  • Heat Transfer Society of Japan (HTSJ)
Educational
Other Educational Activities
  • 2017.03.
  • 2015.03.
  • 2014.07.