Name of the speaker: Wanlin GUO
Position: Professor in Mechanics and Nanoscience;
Director of Institute of Nano Science in Nanjing University of Aeronautics and Astronautics (NUAA);
Director of Key Laboratory of Intelligent Nano Materials and Devices of MoE in NUAA;
Deputy Director of State Key Laboratory of Mechanics and Control of Mechanical Structures in NUAA;                                 
Organization: Key Laboratory of Intelligent Nano Materials and Devices of Ministry of Education,
State Key Laboratory of Mechanics and Control of Mechanical Structures,
Nanjing University of Aeronautics and Astronautics, Nanjing, P. R. China.
Nationality: China
 

The Title of Speech: Two-dimensional nanomaterials beyond graphene
Biography of the Speaker: In 1981-1991, He studied Aerospace Engineering and solid mechanics in Northwestern Ploytechnical University and obtained his Master and PhD degrees in solids mechanics with the best academic records. From 1991-2002 he has worked as Post-D, associated professor and professor in Xian Jiaotong University. In 1995-1998, he worked at the Center-of-Expertise of Australian Defence Science and Technology Organization at Monash University. He obtained the Outstanding Young Scientist Award (Premier Fund) of China in 1996 and the honor of Cheung Kong Scholars in 1999 and worked as Chair Professor in Nanjing University of Aeronautics and Astronautics since 2000. In 2005, he leaded a team in Nano-scale Physical Mechanics enters the Cheung Kong Scholars Excellent Team Programme of the Ministry of Education of China. In 2010, he founded the Key Laboratory of Intelligent Nano Materials and Devices of the Ministry of Education of China.
His current research interests cover intelligent nano materials and devices, high efficient energy conversion nanotechnology, three dimensional fatigue fracture and damage tolerance and durability of mechanical structures. He has published 300+ refereed papers in mechanics-related journals such as Nature Nanotech, Nature Comm. Phys. Rev. Lett., Nano Lett., J. Am. Chem. Soc., Adv. Mater., Small, Nanoscale, J. Mech. Phys. Solids et al. with SCI citation by other over 4000 and was awarded the National Prize in Nature Science in 2012 and Xu Zhilun Mechanical Prize in 2013 for his outstanding academic contribution.
 Abstract of Speech: Nanomaterials are materials with at least one dimensional length scale small to nanoscale so that their properties become distinctly different from bulk materials, such as two-dimensional (2D) nanomaterials with their thickness down to single atomic, and one-dimensional (1D) nanotubes and nanowires, zero-dimensional (0D) quantum dots and nanoparticles. Since the synthesization of fullerene C60 in 1985, a wide spectrum of low-dimensional nanomaterials have been fabricated by both top-down and bottom up methodologies, and their structures have been clearly characterized and colorful properties been understood. Two-dimenisonal materials with atomic thickness exhibits exceptional physical, mechanical and biochemical properties and can be produced in large area and bring the exceptional properties of nanomatreials back to our macroworld. However, graphene is a zero band gap semiconductor and has challange to maintain its excellent charge mobility when open its band gap. This provided the chance for other 2D materials such as transition metal dichalcogenides and black phosphorous sheets with intrinsic semiconductive band gap, insolating boron nitride with wide band gap and metallic borophene which was sucessfully fabricated most recently.
In this presentation, the important progress in fabricating all these 2D materials will be briefly reviewed and their interesting strain tunable properties be introduced. How to create new application by taking the advantage of their intrinsic properties will then be demonstrated, such as using graphene like materials to harvest environmental energy, their coating performances. The new trend in developing new 2D materials with properties beyond that of graphene will be analyzed and demonstrated and finally, the trend in fabrication and appilcations of three-dimensional (3D) structures from 2D materials, and hybrid heterostructures will be outlined.

Reference
1.         Yin, J., Li, X., Yu, J., Zhang, Z., Zhou, J. & Guo, W. Generating electricity by moving a droplet of ionic liquid along graphene. Nature nanotechnology 9 (5), 378-383 (2014).
2.         Yin, J. & Guo, W. et al. Waving potential in graphene. Nature comm. 5, 3582 (2014).
3.         Liu, X., Pan, D.X., Hong, Y.Z., Guo, W. Bending Poisson effect in two-dimensional crystals. Phys. Rev. Lett. 112, 205502 (2014).
4.         Fei, W., Zhou, J., Guo, W. Low-voltage Driven Graphene Foam Thermoacoustic Speaker. Small 19,2252 (2015).
5.         Yin, J. & Guo, W. et al. Boron Nitride Nanostructures: Fabrication, Functionalization and Applications Small 12:22, 2942-2968(2016).
6.         Zhang, Z.H., Guo, W. et al. Tunable electronic and magnetic properties of two-dimensional materials and their one-dimensional derivatives. WIREs Comput Mol Sci 6, 324–350(2016).
7.         Sun, X., Guo, W. et al.  Two-dimensional Boron Crystals: Structural Stability, Tunable Properties, Fabrications and Applications. Feature Article to Advanced Functional Materials: (2016).