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| 1 | Friction characteristics of mechanically exfoliated and CVD-grown single-layer MoS_2显示文摘In this work, the friction characteristics of single-layer MoS_2 prepared with chemical vapor deposition(CVD) at three different temperatures were quantitatively investigated and compared to those of single-layer MoS_2 prepared using mechanical exfoliation. The surface and crystalline qualities of the MoS_2 specimens were characterized using an optical microscope, atomic force microscope(AFM), and Raman spectroscopy. The surfaces of the MoS2 specimens were generally flat and smooth. However, the Raman data showed that the crystalline qualities of CVD-grown single-layer MoS2 at 800 °C and 850 °C were relatively similar to those of mechanically exfoliated MoS2 whereas the crystalline quality of the CVD-grown single-layer MoS_2 at 900 °C was lower. The CVD-grown single-layer MoS_2 exhibited higher friction than mechanically exfoliated single-layer MoS_2, which might be related to the crystalline imperfections in the CVD-grown MoS_2. In addition, the friction of CVD-grown single-layer MoS_2 increased as the CVD growth temperature increased. In terms of tribological properties, 800 °C was the optimal temperature for the CVD process used in this work. Furthermore, it was observed that the friction at the grain boundary was significantly larger than that at the grain, potentially due to defects at the grain boundary. This result indicates that the temperature used during CVD should be optimized considering the grain size to achieve low friction characteristics. The outcomes of this work will be useful for understanding the intrinsic friction characteristics of single-layer MoS2 and elucidating the feasibility of single-layer MoS_2 as protective or lubricant layers for micro- and nano-devices. | Dinh Le Cao KY Bien-Cuong TRAN KHAC Chinh Tam LE Yong Soo KIM Koo-Hyun CHUNG | 2018 | Friction2018，6，4： | 9 |
| 2 | Direct vapor phase growth process and robust photoluminescence properties of large area MoS2 layers显示文摘在那里在收获设备的光电子和精力的领域里在铝二硫化物的使用一直在种研究兴趣,由它的 indirect-to-direct 乐队差距 tunability 的优点。然而,获得大区域瞬间的薄电影 < 潜水艇 class= “ a-plus-plus ” > 为未来设备应用的 2 仍然是挑战。在现在的学习,先锋的数量(S 和哞 < 潜水艇 class= “ a-plus-plus ” > 3 ) 系统地被改变以便优化高度水晶、大的区域瞬间的生长 < 潜水艇 class= “ a-plus-plus ” > 由化学蒸汽免职方法的 2 层。先锋的数量的小心的控制在大区域的合成被发现到关键因素高度水晶的薄片。层的厚度被拉曼光谱学和原子力量显微镜学证实。光性质和化学作文被光致发光(PL ) 和 X 光检查光电子光谱学学习。在 1.82 eV 的强壮的直接激子的排出物的出现(A 激子,与 55 个 thout 事件的规范的 PL 紧张[1.84 ??? 隰酐鱠? 鎄颩 ???? 頿?? 鲰?? | V. Senthilkumar Le C. Tam Yong Soo Kim Yumin Sim Maeng-Je Seong Joon. I. Jang | 2014 | Nano Research2014，7，12： | 6 |
| 3 | Mechanical and physical properties of contemporary dental luting agents 显示文摘 | Attar N Tam LE Mc Comb D | 2003 | J Prosthet Dent2003，89，2： | 1 |
| 4 | Effect of prolonged direct and indirect peroxide bleaching on fracture toughness of human dentin 显示文摘 | Tam LE Kuo VY Noroozi A | 2007 | J Esthet Restor Dent2007，19，2： | 1 |
| 5 | The effect of bleaching time on dentin fracture toughness in vitro显示文摘 | Woo JM Ho S Tam LE | 2010 | J Esthet Restor Dent2010，22，3： | 1 |
| 6 | Removal of cement mortar re- mains from recycled aggregate using pre-soaking approaches 显示文摘 | Vivian W Y Tam Tam C M Le K N | 2007 | Resources Conservation and Recycling2007，50，1： | 1 |
| 7 | Mechanical and physical properties of eontemporary dental luting agents显示文摘 | Attar N Tam LE McComb D | 2003 | J Prosthet Dent2003，89，2： | 1 |
| 8 | Flow, strength, stiffness and radi- opacity of flowable resin composites 显示文摘 | Attar N Tam LE Me Comb D | 2003 | J Can Dent Assoc2003，69，8： | 1 |
| 9 | Removal of cement mortar remains from recycled aggregate using pre-soaking approaches显示文摘 | TAM V W Y TAM C M LE K N | 2007 | Resources Conservation and Recycling2007，50，1： | 1 |
| 10 | Removal of cement mortar remains from recycled aggregate using pre-soaking approaches 显示文摘 | TAM V W Y TAM C M LE K N | 2007 | Resources Conservation and Recycling2007，50，1： | 1 |
| 11 | Comparative translucency of esthetic composite resin restorative materials显示文摘 | Ryan EA Tam LE McComb D | 2010 | J Can Dent As- soc2010，76，： | 1 |
| 12 | Enanti- oselective crystallization exploiting the shift of eutectic compositions in solid-liquid phase diagrams 显示文摘 | Tam Le Minh Heike Lorenz Morgenstern A S | 2012 | Chem Eng TechnoI2012，35，6： | 1 |
| 13 | Comparative translucency of esthetic composite resin restorative materials 显示文摘 | Ryan EA Tam LE McComb D | 2010 | J Can Dent Assoc2010，76，： | 1 |
| 14 | Mechanical and physical properties of contemporary dental luting agents 显示文摘 | AttarN Tam LE McComb D | 2003 | J Prosthet Dent2003，89，2： | 1 |
| 15 | Effects of dentin surface treatments on the fracture toughness and tensile bond strength of a dentin–composite adhesive interface显示文摘 | Tam LE Pilliar RM | | 0，，09： | 1 |
| 16 | A more versatile route to block copolymers and other polymers of complex architecture by living radical polymerization: the RAFT process 显示文摘 | Chong Y K Tam P T Le Graeme Moad | 1999 | Macromolecules1999，32，6： | 1 |
| 17 | A computational paradigm for multiresolution topology optimization (MTOP)显示文摘 | Tam H. Nguyen Glaucio H. Paulino Junho Song Chau H. Le | 2010 | Structural and Multidisciplinary Optimization2010，，4： | 1 |
| 18 | Mechanical andphysical proper-ties of contemporary dental luting agents 显示文摘 | Atta N Tam LE McComb D | 2004 | J Prosthet Dent2004，89，2： | 1 |
| 19 | Mechanical and physical properties of contemporary dental luting agents显示文摘 | Attar N Tam LE McComb D | 2003 | J Prosthet Dent2003，89，2： | 1 |
| 20 | Coastal Sea Water Quality of Nha Trang Bay, Khanh Hoa, Viet Nam显示文摘 | Vo Tran Tuan Linh Duong Trong Kiem Pham Hong Ngoc Le Hung Phu Pham Huu Tam Le Thi Vinh | 2015 | Journal of Shipping and Ocean Engineering2015，5，3： | 1 |
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