• 文献标题:   The effect of substrate temperatures on the structural and conversion of thin films of reduced graphene oxide
  • 文献类型:   Article
  • 作  者:   ALSHAMMARI A, HALIM MM, YAM FK, ALHARDAN NHM, KAUS NHM, UMAR K, QAHTAN TF, IBRAHIM MNM
  • 作者关键词:   green synthesi, graphene oxide, reduced graphene oxide, thin film, spray pyrolysi, conductivity
  • 出版物名称:   PHYSICA BCONDENSED MATTER
  • ISSN:   0921-4526 EI 1873-2135
  • 通讯作者地址:   Univ Sains Malaysia
  • 被引频次:   3
  • DOI:   10.1016/j.physb.2019.07.018
  • 出版年:   2019

▎ 摘  要

Thin films of reduced graphene oxide were deposited by spray pyrolysis technique at different substrate temperatures (Ts=50, 100, 150, 200, 250 and 300 degrees C). All samples synthesised by this method were characterised by different techniques, such as FTIR, Raman spectroscopy, field emission scanning electron microscope, X-ray diffraction analysis, energy-dispersive X-ray spectroscopy and UV-Vis spectroscopy. The results showed that the conversion starts from 150 degrees C and appears to a great extent at 300 degrees C. The electron micrograph image shows low roughness and homogeneity at 300 degrees C. The EDX results showed a decreased percentage in oxygen content and an increase in carbon content, which reflects the reduction of graphene oxide. The Fourier-transform infrared spectroscopy, Raman and UV-Vis analysis also revealed the formation of reduced graphene oxide. The conductance or resistance study shows that as the temperature increases the resistance if the thin films decreases i.e. conductivity increases.