https://scholars.lib.ntu.edu.tw/handle/123456789/616457
標題: | Si-containing crystalline carbon nitride derived from microwave plasma-enhanced chemical vapor deposition | 作者: | Chen L.C. Bhusari D.M. Yang C.Y. Chen K.H. Chuang T.J. Lin M.C. Chen C.K. Huang Y.F. LI-CHYONG CHEN |
關鍵字: | Chemical vapour deposition (CVD);Nitrides;transmission electron microscopy (TEM);X-ray photoelectron spectroscopy (XPS) | 公開日期: | 1997 | 卷: | 303 | 期: | 1-2 | 起(迄)頁: | 66-75 | 來源出版物: | Thin Solid Films | 摘要: | Carbon nitride thin films have been grown by the microwave plasma-enhanced chemical vapor deposition (MW-PECVD) technique. Gas mixtures containing CH4, H2 and NH3 at various ratios were tested as precursors, and Si (100) wafers were used as substrates. X-ray photoelectron spectroscopy (XPS), Auger electron spectroscopy (AES), electron microscopy (both SEM and TEM), and Raman spectroscopy have been employed to characterize the resultant films. The phase contents in the films were found to be strongly dependent on the substrate temperature. The incorporation of significant amounts of Si into the film was observed when the substrate temperature exceeded 1000 °C. However, the presence of Si along with a high substrate temperature also promotes the formation of large crystallites. XPS analyses of C(1s) and N(1s) core levels suggest a multiple bonding structure between carbon and nitrogen atoms. Microscopic investigations of the films reveal the coexistence of large grain (> 10 μm) and fine grain (<1 μm) crystals. Preliminary structural studies suggest the presence of a crystalline carbon nitride compound corresponding to a hypothetical α-C3N4 phase (isomorphic to α-Si3N4), which may also be a stable hard material. Furthermore, we propose that some of the Si has been incorporated as a substitutional element for the C site in the new phase. The Raman spectra exhibit many sharp lines, of which the most distinct ones mimic those of the α-Si3N4 structure. © 1997 Elsevier Science S.A. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-0031191769&doi=10.1016%2fS0040-6090%2897%2900041-2&partnerID=40&md5=2579682243408a6db08566e4a5c63935 https://scholars.lib.ntu.edu.tw/handle/123456789/616457 |
ISSN: | 00406090 | DOI: | 10.1016/S0040-6090(97)00041-2 | SDG/關鍵字: | Chemical bonds;Chemical vapor deposition;Composition effects;Film growth;High temperature effects;Nitrides;Plasma applications;Raman spectroscopy;Scanning electron microscopy;Silicon wafers;Transmission electron microscopy;X ray photoelectron spectroscopy;Carbon nitride;Microwave plasma enhanced chemical vapor deposition (ME PECVD);Semiconducting films |
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