LI Enling, MA Deming, WANG Xuewen, QI Wei, ZHU Hong. Synthesis and IR Vibrational Spectrum on GaN Nanocrystalline Prepared by Sol-gel Method[J]. Chinese Journal of Electronics, 2009, 18(4): 615-618.
Citation: LI Enling, MA Deming, WANG Xuewen, QI Wei, ZHU Hong. Synthesis and IR Vibrational Spectrum on GaN Nanocrystalline Prepared by Sol-gel Method[J]. Chinese Journal of Electronics, 2009, 18(4): 615-618.

Synthesis and IR Vibrational Spectrum on GaN Nanocrystalline Prepared by Sol-gel Method

  • Received Date: 2008-06-01
  • Rev Recd Date: 2009-03-01
  • Publish Date: 2009-11-25
  • High quality GaN nanocrystalline has beenprepared by sol-gel method. The results of X-ray diffraction (XRD), Selected-area electron diffraction (SAED)and High-resolution transmission electron microscopy(HRTEM) measurement indicate that as-prepared sampleis single crystalline GaN with wurtzite structure. Transmission electron microscopy (TEM) displays that the diameters of the grains of GaN nanocrystalline change from30nm to 100nm. X-ray photoelectron spectroscopy (XPS)confirms the formation of the bond between Ga and Nin the sample, and IR spectrum measurement showedE1 (TO) vibrational modes at 570cm-1. Vibrational frequency of GaN small clusters has been calculated usingDensity functional theory (DFT). Using the result, IRspectrum of the sample has been analyzed further.
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