In this work, we have investigated the effects of thermal annealing on interconnected at nanowire junctions and between AgNWS network and rGO films via their sheet resistance and transmission. The annealing temperature was varied from 120˚C to 180˚C with 10˚C step to find out optimal temperature at which the wires can be joined together. The results show that at 170˚C, the sheet resistance and transmission of the hybrid rGO/Ag NW film are Rs = Ωsq−1 and T = 77% (at wavelength 550 nm) corresponding to the ratio of direct conductivity to optical conductivity σDC/σOP = 126 which is the best obtained value. It is expected that the hybrid AgNWS/rGO film can replace ITO film in the near future. | Communications in Physics, Vol. 24, No. 3S1 (2014), pp. 64-70 DOI: INVESTIGATION OF THERMAL ANNEALING CONDITION ON THE OPTICAL AND ELECTRICAL PROPERTIES OF HYBRID SILVER NANOWIRES/REDUCED GRAPHENE OXIDE (AgNWS/rGO) FILMS HOANG THI THU, HUYNH TRAN MY HOA, PHAM HOAI PHUONG, NGUYEN HUYNH NHU, AND TRAN QUANG TRUNG University of Natural Science, Vietnam National University, Ho Chi Minh City LAM MINH LONG AND NGUYEN NANG DINH University of Engineering and Technology, Vietnam National University, Hanoi E-mail: tqtrung@ Received 04 April 2014 Accepted for publication 24 May 2014 Abstract. Herein we report a electrode in the hybrid structure of the silver nanowires (AgNWs) with reduced graphene oxide (rGO) deposited on glass or PET substrate. The assembly and contacting in procedures of this hybrid film have been strongly affected by preparation conditions, especially annealing temperature. In this work, we have investigated the effects of thermal annealing on interconnected at nanowire junctions and between AgNWS network and rGO films via their sheet resistance and transmission. The annealing temperature was varied from 120˚C to 180˚C with 10˚C step to find out optimal temperature at which the wires can be joined together. The results show that at 170˚C, the sheet resistance and transmission of the hybrid rGO/Ag NW film are Rs = Ωsq−1 and T = 77% (at wavelength 550 nm) corresponding to the ratio of direct conductivity to optical conductivity σDC /σOP = 126 which is the best obtained value. It is expected that the hybrid AgNWS/rGO film can replace ITO film in the near future. Keywords: reduced graphene oxide (rGO), Hybrid silver nanowires, thermal annealing. I. INTRODUCTION Conducting metal oxide films such as indium tin oxide (ITO) films and aluminum doped zinc oxide films have been widely used as transparent conductors in a variety of optoelectronic devices including liquid crystal displays, organic light emitting diodes,
