2018 Fiscal Year Research-status Report
| Project/Area Number |
18K14119
|
|---|
| Research Institution | National Institute of Advanced Industrial Science and Technology |
|---|
Principal Investigator |
Lin YungChang 国立研究開発法人産業技術総合研究所, 材料・化学領域, 研究員 (90772244)
|
|---|
| Project Period (FY) |
2018-04-01 – 2021-03-31
|
| Keywords | 電子顕微鏡 / 電子エネルギー損失分光 / 二次元材料 / 遷移金属ドーパント / 単原子スピン状態 / 単原子解析 |
|---|
| Outline of Annual Research Achievements |
In this year, a new EELS CMOS camera was installed to a ultra high vacuum STEM. This new CMOS camera is used for high speed and high sensitivity detection of single atom EELS. During the installation and the performance adjustment of the new camera, we have performed investigations on two dimensional materials, such as graphene and TMDCs. We characterized the vapor-liquid-solid growth of MoS2 nanoribbons (Nature Materials). We discovered the natural 2H and 1T junction in the CVD grown WS2 monolayer (ACS Nano). In addition, we studied the properties and atomic structures of the CVD synthesized graphene/MoS2 (ACS Nano) and graphene/In-doped-WS2 heterojunctions (ACS Nano).
|
| Current Status of Research Progress |
Current Status of Research Progress
2: Research has progressed on the whole more than it was originally planned.
Reason
In this project, we have spent most of the time setting up the new CMOS camera to the existing TEM to realize high speed EELS analysis. Finally, the new camera was installed and working well, and in the meanwhile we published 6 papers in the first fiscal year. The fundamental set up for the microscope has mostly accomplished in this year. More experiments and discoveries can further progress.
|
| Strategy for Future Research Activity |
The next challenge of this project is to create vortex beam in STEM which requires a delicate design and fabrication of phase aperture. We will use the focused ion beam technique to fabricate various kind of phase apertures to generate vortex beam in STEM. The 2D materials with transition metal dopants or perovskite with magnetic properties will be characterized by using the vortex STEM.
|
| Causes of Carryover |
I am planning to use the incurring amount to the next fiscal year to accomplish the set up of vortex beam STEM, especially for the design and fabrication of phase apertures.
|
-
-
-
-
-
-
-
-
[Journal Article] Vapour-liquid-solid growth of monolayer MoS2 nanoribbons2018
Author(s)
Shisheng Li, Yung-Chang Lin, Wen Zhao, Jing Wu, Zhuo Wang, Zehua Hu, Youde Shen, Dai-Ming Tang, Junyong Wang, Qi Zhang, Hai Zhu, Leiqiang Chu, Weijie Zhao, Chang Liu, Zhipei Sun, Takaaki Taniguchi, Minoru Osada, Wei Chen, Qing-Hua Xu, Andrew Thye Shen Wee, Kazu Suenaga, Feng Ding, and Goki Eda
-
Journal Title
Nature Materials
Volume: 17
Pages: 535-542
DOI
Peer Reviewed / Int'l Joint Research
-
-
-
-
[Journal Article] Surface-Mediated Aligned Growth of Monolayer MoS2 and In-Plane Heterostructures with Graphene on Sapphire2018
Author(s)
Kenshiro Suenaga, Hyun Goo Ji, Yung-Chang Lin, Tom Vincent, Mina Maruyama, Adha Sukma Aji, Yoshihiro Shiratsuchi, Dong Ding, Kenji Kawahara, Susumu Okada, Vishal Panchal, Olga Kazakova, Hiroki Hibino, Kazu Suenaga, and Hiroki Ago
-
Journal Title
ACS Nano
Volume: 12
Pages: 10032-10044
DOI
Peer Reviewed / Int'l Joint Research
-
