▎ 摘　　要

A facile and rapid hydrothermal route is used to synthesize the reduced graphene oxide (rGO) using polyethyleneimine (PEI) as a reducing agent. Structural and morphological studies confirm the degree of reduction, which is also verified by Raman analysis. Synthesized rGO has a nanosheet-like structure with wrinkles and folded regions. Hall measurements were taken at room temperature and measured its carrier concentration, resistivity, and mobility. Raman spectrum confirms that there is a change in shift while introducing a polymer. Thermoelectric characterizations were taken and found a decrease of oxygen content in rGO compared to GO. The values of Carrier concentration, resistivity and mobility are determined by Hall measurements at room temperature were rGO (p-type) is 3.95 x 10(19) (cm(3)), 2.71 x 10(-3) (ohm-cm), 58.3 (cm(2) V-1 s(-1)) where for (n-type) rGO is 1.53 x 10(20) (cm(-3)), 2.57 x 10(-3) (ohm-cm), 15.9 (cm(2) V-1 s(-1)) respectively. The carrier concentration of P-type rGO is higher when compared to n-type rGO. We believe that prepared reduced graphene oxide (rGO) will be used for wearable thermoelectric applications.