二维材料相关研究

讲座内容：The one-atom-think crystal like graphene have fantastic properties andattracted tremendous interests in these years, which open a window to thelandscape of the two-dimensional (2D) materials. There are a large variety of2D materials beyond graphene that are to be explored. Using chemical solidreaction and chemical vapour deposition, we have successfully synthesized awide spectrum of 2D materials including both single crystal bulk and atomicallythin films.

In this talk, I will briefly introduce development of 2D materials over thepast ten years and our recent work in this area, including the advances in thesynthesis of various 2D materials, engineering of 2D materials and fabricationof 2D alloy. I will also discuss the unique physical properties of such as 2Dsuperconductivity (MoTe₂and NbSe₂), 2D ferroelectricity(CuInP₂S₄), 2D ferromagnetism and 2D Wyle semi-metals. Inthe last, Iwill introduce thepotential applications of 2D materials for novel electronics, composite,energy and catalysis.

His research focus onfollowing topics: 1) Synthesis of high-quality and large-size novel 2Dmonolayers, especially, a full spectrum of transition metal dichalcogenides(TMDs), the biggest family ever known in 2D materials. 2) Engineering of 2Dmaterials such as lateral/vertical 2D heterostructure and alloy; 3) Physicalproperties of 2D monolayers such as 2D superconductivity (MoTe₂andNbSe₂), 2D ferroelectricity (CuInP₂S₄), 2Dferromagnetism and 2D Wyle semi-metals (WxMo_1-xTe₂andTaIrTe₄). 3) Applications of 2D materials such as novel electronics(Semi-floating gate FET, Inorganic/organic PN junction and rectifier,Ferroelectrically non-volatile memory); Detector and sensors (Atom-thinphotodetector, photoconductive switch and Microelectromechanical sensor);Coating and composite (high-temperature oxidation-resistant coating,binder-free fire-resistant wood coatings), energy and catalysis (Li-ionbattery, supercapacitor, ORR, HER, etc).