Mitra, Sreemanta ; Singha, Achintya ; Chakravorty, Dipankar (2013) Non-linear temperature variation of resistivity in graphene/silicate glass nanocomposite Journal of Physics D: Applied Physics, 46 (37). p. 375306. ISSN 0022-3727
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Official URL: http://iopscience.iop.org/0022-3727/46/37/375306
Related URL: http://dx.doi.org/10.1088/0022-3727/46/37/375306
Abstract
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.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Institute of Physics Publishing. |
| ID Code: | 97760 |
| Deposited On: | 18 Sep 2013 06:21 |
| Last Modified: | 18 Sep 2013 06:21 |
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