課題番号 ：S-15-NI-47
利用形態 ：共同研究
Program Title (English) ：Fabrication of a carbon coated metal nano-sample for the in situ TEM observation of graphene
Username (日本語) ：モハマド サウフィ ロスミ1), モハマド ザムリ ユソプ2), ヤジド ヤコブ1), 高橋 千里3), カリタ ゴラプ1), 種村 眞幸1)
Username (English) ：Mohamad Saufi Rosmi1), Mohd Zamri Yusop2), Yazid Yaakob1), Chisato Takahashi3), Golap Kalita1) and Masaki Tanemura1)
所属名（日本語） ：1) 名古屋工業大学 未来材料創成工学専攻, 2) マレーシア工大 機械工学科, 3) 愛知
学院大学 医療薬学科
Affiliation (English) ：1) Department of Frontier Materials, Nagoya Institute of Technology,
2) Department of Materials, Manufacturing and Industrial Engineering, Faculty
of Mechanical Engineering, Universiti Teknologi Malaysia,
3) School of Pharmacy, Aichi Gakuin University.

１．概要（Summary ）
A thin carbon coated copper nanoneedles were fabricated by using ion irradiation technique at room temperature. The samples thus prepared were mounted directly on the special transmission electron microscopy (TEM) holder for the in situ TEM experiment. The sample was heated gradually until temperature about 900oC and the structural change were observed carefully.

２．実験（Experimental）
The copper foils were bombarded by Ar+ ions at the incidence angle of 45o for 60 minutes with the simultaneous carbon supply using a room temperature CNF synthesis system. The morphological feature of the samples thus prepared was observed by scanning electron microscopy (SEM). Then the samples were mounted on a special sample holder for the in situ TEM experiment. The interaction of carbon atoms on the metal atoms were carefully observed during the in situ TEM experiment.

３．結果と考察（Results and Discussion）
The morphology of C-Cu composite nanostructure is successfully tailored by a simultaneous carbon supply during the ion irradiation. Conical protrusions formed on the surface of the Cu substrate with the low carbon supply rate (RC), whereas high RC area prominently produced nanoneedle structures with average length and diameter of 8.5 and 0.1 µm, respectively, as seen in Fig. 1.
From the TEM images the carbon coating thickness was in the range of 2 ~ 5 nm. After long heating of carbon coated copper nanoneedles, it was clearly seen that most of the Cu nanoparticles evaporated to leave graphene nanoneedle structure.

Fig. 1 Typical SEM image of the carbon coated copper nanoneedles

４．その他・特記事項（Others）
なし

５．論文・学会発表（Publication/Presentation）
(1) Rosmi Mohamad Saufi, Yusop M. Zamri, Yaakob Yazid, Takahashi Chisato, Kalita Golap, Tanemura, Masaki, 15th International Conference On Nanotechnology (IEEE NANO 2015), July 27-30 (2015),Rome, Italy

(2) Masaki Tanemura, Chisato Takahashi, Yazid Bin Yaakob, Mohamad Saufi Rosmi, Golap Kalita and Mohd Zamri Bin Mohd Yusop, European Conference on Surface Science (ECOSS-31), August 31-September 4 (2015), Barcelona

(3) Mohamad Saufi Rosmi, Mohd Zamri Yusop, Yazid Yaakob, Chisato Takahashi Golap Kalita and Masaki Tanemura, Third International Workshop on Advanced Functional Nanomaterials 2015 (TIWAN-2015), December 16-18, Anna University, India.

(4) Mohamad Saufi Rosmi, Mohd Zamri Yusop, Yazid Yaakob, Chisato Takahashi, Subash Sharma, Golap Kalita and Masaki Tanemura, EMN Meeting on Carbon Nanostructures, 2016 March 27-31, Hawaii

６．関連特許（Patent）
なし