Vacuum coating science and technology is the most active one in the application of technology, which involves coating equipment, process, membrane, sputtering target and other aspects, many different types of films, where only one part of a simple exposition.
Nature hardest diamond, cubic boron nitride second, third boron carbide.
① diamond films (CVD Production): hot filament CVD diamond film deposition rate method 2.5μm / h, HV40 ~ 50GPa;
② B4C Boron Carbide: Production by magnetron sputtering, high temperature thermal stability, 1100 ℃ or more, it is the most hard materials, HV50.4gPa;
③ composite film: TiN-Gen 1; TiCN, TiAlN – the second generation; third generation is a multi-component composite film and multilayer systems; TiN / TiCN, TiN / NbN, TiN / TiAlN, TiN / CrN, TaN / NbN (tantalum nitride / niobium nitride), HV55.6GPa, developed into a multi-layer nano-graded film – TiAl, TiAl1, TiAl2, ZrN (zirconium nitride). Direction of development: improving film toughness, wear resistance, heat resistance, corrosion resistance.
Diamond coated tools
Research Interests: ① to improve diamond adhesion between the coating and the substrate, intermediate layer design, develop multi-coated tools; ② increase the deposition area and increase growth rate; ③ PVD method of diamond coating theory and technology.
Light, electricity, magnetic features film
The film features a wide range of different properties, to name just some examples.
① Thin Film: Y2O3: Eu (urea solution method D) Eu (RF sputtering);
② cold light film – highly reflective visible light, infrared light areas of high transmission, to achieve cold exposure, to protect the purpose of the illuminated objects;
③ organic optoelectronic films: metal phthalocyanine films: CuPc-PbPc; CuPc / ZnS; TiOPc highly sensitive coefficient;
④ optoelectronic functional composite film – Ag-Au-SiO2, Ag-BaO, Ag-SiO2, Ag-MgF2, in which nano-Ag-MgF2 cermet films have optical absorption properties, Ag-BaO with photoelectric emission;
⑤ transparent conductive film: ITO (In2O3: Sn), ZAO (ZnO: Al), IMO (In2O3: Mo);
⑥ photochromic film: 18 films alkyl substituted spiropyran (SP-18), change color under ultraviolet irradiation, colorless in the visible light of recovery can be used for optical information storage, optical switches, etc.;
⑦ magneto-optical recording films: PbFeCo (Pb, Fe, Co);
⑧ very large scale integration (VLSI): the Si substrate by sputtering Cu or Al, to achieve multi-layer wiring;
⑨ semiconductor films: SiC, ZnO;
⑩ other optical and electromagnetic properties of feature film:
LiF, CaF2 used in flat-type field emission display;
Fe / Cr multilayers with giant magnetoresistance (GMR);
Fe = SiO2 film with tunneling magnetoresistance (TMR);
TiO2 film has excellent dielectric, piezoelectric, gas and photocatalytic function;
Cu-SCN-Al (organic network and physical) are polar memory effect;
Triethylamine – four cyanide-P-quinone II methane (TEA (TCNQ) 2) is a single crystal can be used for high-density information storage of organic composite materials;
YBCO is a high-temperature superconducting (HTS) film.
Research Interests: ① positive for thin film materials composite, multi-type, high-performance, new technology direction ② the design of composite film, performance testing, methods of preparation; ③ of film stress (firmness); ④ of large area target production technology to improve target utilization.
① found to have the new features of the new coating material;
② remarkable features of the new design of the membrane system (membrane);
③ high-tech industries, such as integrated circuit industry, the information storage industry, flat panel display industry, including liquid crystal display (LCD), plasma display panel (PDP), field emission display (EL);
④ depth the relationship between the structure and properties of the film theory.