▎ 摘　　要

The present study includes the fabrication and characterization and an investigation of the electrical transport properties of nanocomposites of n-PANI and graphene oxide (GO). The samples were prepared by loading different weight percentages D of GO during the chemical oxidative in situ polymerization of aniline monomers. Structural characterization by XRD, FTIR, FESEM, etc. confirmed that the nanocomposites exhibited superior morphology and thermal stability. The transport properties were studied by measuring the variation of conductivity with temperature T, V-I characteristics and the fundamental response V-f at different temperatures T. The dc conductance Sigma showed a transition from insulator type behavior to weakly temperature dependent behavior at temperature T-D, which decreased with increasing D. The V-I characteristics were generally nonlinear and the nonlinearity increased with decreasing temperature. Moreover, at temperatures T >= T-D, the characteristics showed saturation of voltage for higher values of current, similar to Zener diodes. At lower temperatures (T