Document Type
Article
Publication Date
1-1-2017
Abstract
In this study, we successfully prepare a porous graphite-SiO composite foam via a facile glucose-foaming-based method. The foam was characterized by XRD, XPS, SEM, Raman, and soft X-ray absorption spectroscopy of the carbon and oxygen K-edges and by silicon K-edge X-ray absorption near edge structure (XANES) spectroscopy. The electrical properties of the sample were evaluated using current-voltage measurements. The synthesized graphite-SiO composite foam showed negative resistance effect, i.e. an increase in the applied voltage led to a decrease in current. This negative resistance effect can be explained by two possible mechanisms: (1) the existence of defect states and (2) a change in the charge shifting amount. 2 2
Publication Source (Journal or Book title)
RSC Advances
First Page
41812
Last Page
41818
Recommended Citation
Wu, Y., Fu, H., Roy, A., Song, P., Lin, Y., Kizilkaya, O., & Xu, J. (2017). Facile one-pot synthesis of 3D graphite-SiO2 composite foam for negative resistance devices. RSC Advances, 7 (66), 41812-41818. https://doi.org/10.1039/c7ra07465d