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采用微波等离子体化学气相沉积法,N_2/CH_4作反应气体,在 Si(100)基体上沉积β-C_3N_4 化合物.使用X射线光电子能谱(XPS)研究了基体温度对碳氮薄膜的成分和结构的影响,结果 表明:随着温度的提高,N/C原子比迅速提高,a一和C_3N_4在薄膜中的比例随之提高,超过一定 的温度后,N/C原子比将会降低.傅立叶变换红外光谱(FT-IR)和喇曼(Raman)谱结果支持 C-N 键的存在.
The β-C_3N_4 compound was deposited on Si (100) substrate by microwave plasma chemical vapor deposition and N_2 / CH_4 as reaction gas. The effect of substrate temperature on the composition and structure of carbon-nitrogen thin films was investigated by X-ray photoelectron spectroscopy (XPS). The results showed that the atomic ratio of N / C increased rapidly with the increase of temperature. The ratio of a-and C_3N_4 in the films With the increase, beyond a certain temperature, the N / C atomic ratio will be reduced. Fourier transform infrared spectroscopy (FT-IR) and Raman spectroscopy support the presence of C-N bonds.