J Mater Sci Technol ›› 1999, Vol. 15 ›› Issue (05): 480-482.

• Research Articles • Previous Articles     Next Articles

Experimental Observation of Cubic C3N4 Compound in Carbon Nitride Thin Films

Furen XIAO, Dongli YU, Yongjun TIAN, Julong HE, Dongchun LI, Wenkui WANG   

  1. College of Materials Science and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
  • Received:1998-07-10 Revised:1998-10-09 Online:1999-09-28 Published:2009-10-10
  • Contact: Furen XIAO

Abstract: Cubic C3N4 compoundin the C-N thin films on Si and NaCl substrates was prepared by ion beamsputtering of a pure graphite target with discharge gas of pure N2. X-ray photoelectron spectroscopy indicated that nitrogen atoms combinedwith sp2- and sp3- coordinated C atoms in the film, respectively. X-ray diffraction, selected area electron diffraction and high-resolution electron microscopy were used to identify the cubic C3N4 phase. The results reconfirm the ab initio calculations on metastable structure in C-N compounds.

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