Is anybody can help me to check this abstract? Synthesis of Hexagonal Boron Nitride by Chemical Vapor Deposition Abstract In 2004, the University of Manchester, Geim group synthesized a single atomic layer of graphite material--graphene, has aroused significant interest in researches on two-dimensional(2D) nanomaterials due to its unique structure and extraordinary physical/chemical properties. Hexagonal boron nitride(h-BN) and transitional metal sulfides, a layerd material analogous to graphene, has also attracted considerable interest. These 2D materials and heterostructure are made up of these 2D materials form the basis of the research of the 2D physics. h-BN has attracted significant attention because of its superior properties as well as its potential as an ideal dielectric layer for graphene-based devices.It has a good many advantageous proerties,such as excellent chemical and thermal inertness, high thermal conductivity, anti-oxidation at high temperature and superior electric insulativity.In multifunctional composite material modification, field emission devices, sensors, ultraviolet laser device and the super hydrophobic coating and anti-oxidation coating will have important applications. At present, h-BN is still in the stage of basic research. It's a challenge to product mass and high quality h-BN. The main production of methods of h-BN are mechanical exfoliation, chemical exfoliation and chemical vapor deposition (CVD). This thesis studies the synthesis of single-crystal monolayer bilayer h-BN on Cu-Ni alloy foils by CVD. In this period, we used the Raman spectra technique, transmission electron microscope (TEM) ,scanning electron microscope (SEM) and the measurement technology of electrical performence to characterize h-BN. Key Words: Two-dimensional (2D) materials, Hexagonal boron nitride (h-BN), Cu-Ni alloy, Chemical vapor deposition.