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. 2021 Apr 9;26(8):2167.
doi: 10.3390/molecules26082167.

The Quenching and Sonication Effect on the Mechanical Strength of Silver Nanowires Synthesized Using the Polyol Method

Junaidi Junaidi  1   2 , Muhamad Wahyudi Saputra  1 , Roniyus Marjunus  1 , Simon Sembiring  1 , Sutopo Hadi  3
Affiliations

The Quenching and Sonication Effect on the Mechanical Strength of Silver Nanowires Synthesized Using the Polyol Method

Junaidi Junaidi et al. Molecules. .

Abstract

This study aims to determine the effect of fast cooling (quenching) on thermal properties, mechanical strength, morphology and size of the AgNWs. The synthesis of AgNWs was carried out at three different quenching-medium temperatures as follows: at 27 °C (ambient temperature), 0 °C (on ice), and -80 °C (in dry ice) using the polyol method at 130 °C. Furthermore, the AgNWs were sonified for 45 min to determine their mechanical strength. Scanning electron microscopy analysis showed that the quenched AgNWs had decreased significantly; at 27 °C, the AgNWs experienced a change in length from (40 ± 10) to (21 ± 6) µm, at 0 °C from (37 ± 8) to (24 ± 8) µm, and at -80 °C from (34 ± 9) to (29 ± 1) µm. The opposite occurred for their diameter with an increased quenching temperature: at 27 °C from (200 ± 10) to (210 ± 10) nm, at 0 °C from (224 ± 4) to (239 ± 8) nm, and at -80 °C from (253 ± 6) to (270 ± 10) nm. The lower the temperature of the quenching medium, the shorter the length and the higher the mechanical strength of AgNWs. The UV-Vis spectra of the AgNWs showed peak absorbances at 350 and 411 to 425 nm. Thermogravimetric analysis showed that AgNWs quenched at -80 °C have better thermal stability as their mass loss was only 2.88%, while at the quenching temperatures of 27 °C and 0 °C the mass loss was of 8.73% and 4.17%, respectively. The resulting AgNWs will then be applied to manufacture transparent conductive electrodes (TCEs) for optoelectronic applications.

Keywords: characterization; polyol; quenching; silver nanowires; synthesis.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
UV-Vis spectrum of AgNWs samples: (a) before being vibrated and (b) after being vibrated by (1) water medium, (2) ice medium, and (3) dry ice medium.
Figure 2
Figure 2
SEM images the morphology of AgNWs at quenching medium temperature (a) 27 °C, (b) 0 °C, (c) −80 °C, (d) 27 °C was vibrated, (e) 0 °C was vibrated, and (f) −80 °C was vibrated.
Figure 3
Figure 3
TEM images of AgNWs at quenching medium temperature 27 °C. (a) non-vibrated and (b) vibrated.
Figure 4
Figure 4
The relationship between the temperature of the quenching medium with (a) the length of AgNWs, and (b) the diameter of AgNWs.
Figure 5
Figure 5
DTA/TGA AgNWs test results were quenched at temperature (a) 27 °C, (b) 0 °C, (c) −80 °C, and (d) comparison of the percentage of mass loss based on TGA characterization.
Figure 6
Figure 6
Synthesis of silver nanowires by polyol method.
See this image and copyright information in PMC

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