Effect of Substrate Temperature on the Composition and Structure of Carbon Nitride Thin Films
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摘要: 采用微波等離子體化學氣相沉積法,N2/CH4作反應氣體,在Si(100)基體上沉積β-C3N4化合物.使用X射線光電子能譜(XPS)研究了基體溫度對碳氮薄膜的成分和結構的影響,結果表明:隨著溫度的提高,N/C原子比迅速提高,α-和β-C3N4在薄膜中的比例隨之提高,超過一定的溫度后,N/C原子比將會降低.傅立葉變換紅外光譜(FT-IR)和喇曼(Raman)譜結果支持C-N鍵的存在.
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關鍵詞:
- β-C3N4 /
- 微波等離子體化學氣相沉積 /
- 薄膜
Abstract: The carbon nitride thin films have been prepared on Si substrates, using N,/CH. as reactive gases, by microwave chemical vapor deposition method. The effect of substrate temperature on the composition and structure of carbon nitride thin films were studied by X-ray photoelectron spectroscopy (XPS). As the substrate temperature increased, the N/C atomic ratios increased rapidly first and then decreased a little after a crucial temperature. Fourier transform infrared (FT-IR) and Raman spectra support the existence of C-N covalent bond.-
Key words:
- β-C3N4 /
- microwave plasma chemical vapor deposition(MPCVD) /
- thin films
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