CuCl₂-Mediated Synthesis of Silver Nanowires for Flexible Transparent Conducting Films

Abstract

Abstract. Silver nanowires (Ag) were successfully synthesized by a copper chloride (CuCl2)-mediated polyol method at 155oC. Scanning electron microscopy (SEM) and X-Ray diffraction were employed to investigate the morphology and structure of the Ag products, respectively. Without CuCl2, mostly nanoparticles were formed. On the other hand, Ag nanowires with an average length of about 18.8 m and an average diameter of about 96.3 nm were formed after addition of 1.6 M of CuCl2. This suggests that the morphology of the Ag nanowire can be tailored by varying the amount of CuCl2. Ag nanowire suspension in ethanol was evenly coated on cellulose acetate substrates using Meyer rod coating. The electrodes were annealed at 150°C for 30 min to remove the organic materials on the surface of the nanowires. A sheet resistance of <50 ohms/sq with an optical transmittance of 80% at 550nm was obtained for an electrode with a nanowire density of 0.1 mg/cm2.

Growth of Ultralong Ag Nanowires by Electroless Deposition in Hot Ethylene Glycol for Flexible Transparent Conducting Electrodes

“…When PVP concentration was not sufficient (PVP : AgNO 3 = 1), Ag nanowires were not produced. It is possible that the multiply-twinned Ag crystals initially formed during the early stage of the reaction agglomerated due to low concentration of PVP [29,30,[33][34][35]. This could have led to the large irregular Ag particles as illustrated in the schematic in Figure 2.…”

Investigation of the Electrical, Optical, and Mechanical Properties of Ag Nanowire Conducting Electrode

“…Silver (Ag) nanowires-based films are promising for transparent conducting applications due to its low percolation threshold, high conductivity and optical transparency, and good flexibility [1][2][3][4][5][6]. .…”

“…This is due to its high transmittance and low sheet resistance [7][8]. Due to the high processing cost of ITO and its brittleness, however, alternatives such as zinc oxide (ZnO) [9][10][11], copper (Cu) nanowires [12][13], and Ag [1][2][3][4][5][6] nanowires have been studied.…”

“…Commonly, nanowires are synthesized by polyol process due to its ease, flexibility and low cost. [1][2][3][4][5][6] Additionally, the nucleation process can be easily controlled by varying experimental condition, such as concentration of reactants and temperature. [1][2][3][4][5][6] AgNO 3 was mixed with clove oil and kept at room temperature for growth.…”

“…[1][2][3][4][5][6] Additionally, the nucleation process can be easily controlled by varying experimental condition, such as concentration of reactants and temperature. [1][2][3][4][5][6] AgNO 3 was mixed with clove oil and kept at room temperature for growth. Gray color colloids in the mixture confirmed the formation of Ag nanowires.…”