• 文献标题:   Non-linear temperature variation of resistivity in graphene/silicate glass nanocomposite
  • 文献类型:   Article
  • 作  者:   MITRA S, SINGHA A, CHAKRAVORTY D
  • 作者关键词:  
  • 出版物名称:   JOURNAL OF PHYSICS DAPPLIED PHYSICS
  • ISSN:   0022-3727 EI 1361-6463
  • 通讯作者地址:   Weizmann Inst Sci
  • 被引频次:   4
  • DOI:   10.1088/0022-3727/46/37/375306
  • 出版年:   2013

▎ 摘  要

Graphene/glass nanocomposite was synthesized by gelation of the glass in a solution with dispersed graphene sheets. Electrical transport measurements were carried out on pellets formed by cold pressing of composite powders. Resistivity showed a nonlinear increase as a function of temperature in the range 300-400 K. This has been explained as arising due to the phonon spectra of the glass affecting the movement of electrons in graphene. Raman studies confirmed the presence of phonons in the silicate glass phase. The dielectric relaxation spectra of the composites at different temperatures are consistent with the above mechanism of the electron-glass phonon interaction.