摘要
采用SnCl4和O2为反应源,ArF准分子激光CVD生长SnO2薄膜,利用XRD、UVT、XPS研究了薄膜的组成和结构,实验表明SnO2薄膜属于四方晶系、金红石结构,薄膜的紫外可见光透射率大于90%,吸收边波长为355nm,禁带宽度为3.49eV。最后。
Abstract ArF excimer laser assisted chemical vapour deposition tin oxide thin films were obtained by using SnCl 4 and O 2 as the precursors. The composition and structure of the thin films were investigated by means of XRD, UVT and XPS. It is shown that the SnO 2 thin films belong to a tetragonal rutile structure. The ultraviolet visible transmittance of the SnO 2 thin films is above 90%. The absorption edge is 355nm and the energy gap is 3 49eV. Reaction mechanism of the SnO 2 thin film is discussed.