|Host Laboratory||FUJITA LAB.|
|Position in LIMMS||EUJO-LIMMS Researcher (UT-IIS)|
Main Research Topic in LIMMS
Advanced-MEMS - Technical assistance to lab members
TEM, STEM, FIB, SEM, AFM
|Contact||LIMMS/CNRS-IIS (UMI 2820)
Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan
Phone:+81 (0)3 5452 6036 / Fax:+81 (0)3 5452 6088
|yktkym at iis.u-tokyo.ac.jp|
|2014-now||EUJO-LIMMS Researcher - Host Laboratory as Fujita Lab.|
|2011-2013||Project Academic Support Specialist, Fujita-Lab|
|2008-2010||University of Tsukuba, Graduate school of System and Information Engineering, Department of Engineering Mechanics and Energy, Master Degree of Engineering|
|2008||Certified from National Institution for Academic Degree and University Evaluation, Bachelor of Engineering|
|2006-2008||Kisarazu National College of Technology, Advanced Course in Mechanical and Electrical System, Diploma|
Research Projects in Limms
1- Technical assistance to lab members
- Context :
I provide a technical assistance to researchers of EUJO-LIMMS including EPFL, IMTEK, VTT, and MESA+, as well as LIMMS members. It includes training sessions given on specific equipment (TEM, STEM, FIB, FE-SEM) and physical analysis of materials by EDX, EELS and AFM.
- Skills :
TEM (Hitachi HF2000), STEM (Hitachi HD2300), SEM (Hitachi 4800), FIB (Hitachi FB2100), AFM (Asylum research).
Some examples are given below:
- 1. AFM
1- AFM topography measurement on DNA bundles dispersed on mica surface in dry conditions. As shown in Fig. 1, the measured height of DNA bundle is about 2nm.
Fig. 1 (a) AFM image of DNA bundles in dry condition and (b) height measurement of red line in Fig.1 (a).
- 2. EUJO-LIMMS project with VTT
The goal of the project was to investigate crystalline structure of sputtered AlN films on various seed layers. The work included training and assisting the VTT researcher in the sample preparation and doing STEM and TEM analysis. There were total of 40 TEM samples prepared and over 500 TEM images taken in this project. High magnification TEM picture of AlN film is presented in Figure 2.
Fig. 2 TEM image of AlN deposited on Molybdenum. Magnification is 1 000 000x.
3. EUJO-LIMMS project with MESA+
This project aims at observing biological sample in-situ in liquid in STEM. For this purpose, MESA+ developed a nanochannel based TEM liquid-cell that we tested with our STEM. Brownian motion of gold nanoparticle (50nm) was successfully observed in-situ through the thin nitride membranes encapsulating the solution.
Main publication List (papers, conferences and patent)
- Y. Takayama, T. Ishida, T. Sato, L. Jalabert and H. Fujita, “Study of Viscous Deformation of SiO2 by Nanoscale Tensile Test under In-Situ Observation”, 27th International Microprocesses and Nanotechnology conference (MNC2014), 6C-6-2, Nov. 4-7, 2014, Fukuoka, Japan.
- G. Valet, M. Kumemura, L. Jalabert, Y. Takayama, T. Sato, H. Fujita, "A new TEM liquid-cell with integrated MEMS microfluidic valve", 31st Sensor Symposium, Matsue (Japan) Oct. 20-22, 2014. (Poster)
- S. Nabeya, T. Akao, Y. Takayama, T. Sato, L. Jalabert and H. Fujita, IN SITU STEM OBSERVATION OF TRIBOLOGY AND ELECTRICAL MEASUREMENT ON Ru AND RuO2 NANO CONTACT FOR PROBE-BASED DATA STORAGE, 7th Asia-Pacific Conference on Transducers and Micro/Nano Technologies (APCOT2014), 10-3 (2pages) , June 29 - July 2, 2014 / EXCO, Daegu, Korea.
- G. Valet, T. Sato, L. Jalabert, M. Egawa, Y. Takayama, H. Fujita, TOWARD A LAB-IN-TEM BY COMBINING APPLICATION SPECIFIC MEMS WITH TEM, 7th Asia-Pacific Conference on Transducers and Micro/Nano Technologies (APCOT2014), 10-6 (2pages) , June 29 - July 2, 2014 / EXCO, Daegu, Korea.
2013 and prior
- Y. Tauran, M. Kumemura, N. Lafitte, R. Ueno, L. Jalabert, Y. Takayama, D. Collard, H. Fujita, A. W. Coleman, and B. Kim, “Mechanical effect of Calix[n]arene capped silver nanoparticles on DNA measured with silicon nano tweezers”, The 16th International Conference on Miniaturized Systems for Chemistry and Life Sciences (MicroTAS 2012), pp. 1882-1884, Oct. 28-Nov.1, 2012, Okinawa, Japan.
- Y. Takayama, H. Fujita, T. Ishida, “Electrical Measurement of ITO Nanowire with In-Situ TEM Observation”, The 29th Sensor Symposium on Sensors, Micromachines and Applied Systems, pp.168, 22-24 Oct. 2012, Fukuoka, Japan.
- L. Jalabert, H. Guillou, T. Sato, T. Ishida, M. Egawa, S. Nabeya, Y. Takayama, S. Volz, H. Fujita, “Toward a Lab-in-a-TEM by Mounting Advanced-MEMS in TEM Holder”, 39th International Conference on Micro and Nano Engineering, 292-spc0292, Sep. 2012, Toulouse, France.
- Y. Takayama, T. Sato, L. Jalabert, T. Ishida, H. Fujita, “MEMS-in-TEM Assisted Atomic Point Contact Formation and Manipulation: a Route toward Fundamental Nanoscience”, The Asia-Pacific Interdisciplinary Research Conference 2011, p.12, 17-18 Nov. 2011, Aichi, Japan.
- Y. Takayama, T. Yoshino, T. Fujino, and M. Ishikawa: “Numerical Analysis of On-board Surface Hall MHD Generator under Various Flight Conditions”, 17th International Conference on MHD Energy Conversion, 3-5 (CD-ROM), 14-17 Sep. 2009, Kanagawa, Japan.
- Y. Takayama, T. Yoshino, T. Fujino and M. Ishikawa: “Generator Performance and Aerodynamic Charateristics of Space Vehicle Equipped With On-Board Surface Hall MHD Generator”, 40th AIAA Plasmadynamics and Lasers Conference, AIAA-2009-3906, 22-25 June. 2009, San Antonio, Texas.
- Y. Takayama, T, Yoshino, T. Fujino and M. Ishikawa: “Electrical Characteristics and Aerodynamic Characteristics of Planetary Entry Vehicle Equipped with On-board Surface Hall type MHD Power Generator”, 新エネルギー・環境研究会, FTE-08-21, pp. 55-60, 29-30 Sep. 2008, Nagaoka, Japan.