Publication: Polyvinylpyrrolidone-Free Silver Nanowires for Alternating Current Electroluminescence Electrode Devices
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Issued Date
2025-03-21
Resource Type
eISSN
25740970
Scopus ID
2-s2.0-105001071561
Journal Title
ACS Applied Nano Materials
Volume
8
Issue
11
Start Page
5829
End Page
5840
Rights Holder(s)
SCOPUS
Bibliographic Citation
ACS Applied Nano Materials Vol.8 No.11 (2025) , 5829-5840
Suggested Citation
Kidtang S., Pimanpang S., Swatsitang E., Jarernboon W. Polyvinylpyrrolidone-Free Silver Nanowires for Alternating Current Electroluminescence Electrode Devices. ACS Applied Nano Materials Vol.8 No.11 (2025) , 5829-5840. 5840. doi:10.1021/acsanm.5c00829 Retrieved from: https://hdl.handle.net/20.500.14740/20685
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Abstract
Silver nanowires (AgNWs) were prepared by the polyol method. The synthesis temperature was varied from 110 to 170 °C, with increments of 10 °C. At a low temperature of 110 °C, only a small amount of nanowires was formed. Many uniform and long nanowires were formed in a temperature range of 120-150 °C, but at high temperatures at 160 and 170 °C, the nanowires of larger diameter and shorter length were formed with some silver nanoparticles (AgNPs) on their surfaces. AgNWs under a reaction temperature of 140 °C (AgNWs-140 °C) exhibited the longest average length (88 ± 37 μ m) and the highest aspect ratio (1134 ± 485), with an average diameter of 77.2 ± 19.1 nm. These results indicate that 140 °C provides optimal growth conditions, achieving a balance between the nucleation and elongation processes. AgNWs-140 °C-based transparent conductive films (TCF) exhibited a low sheet resistance of 46 Ω/sq with the highest transmittance of 68% at a 550 nm wavelength. The assembled alternating current electroluminescence devices (AC-EL), having the device structure as a AgNWs-TCF/ZnS:Cu phosphor layer/BaTiO3 dielectric layer/Ag-paste back-electrode, showed the luminance intensity depended on the sheet resistance and transmittance of the TCF film. The AgNWs-140 °C AC-EL device delivered the highest luminance of 531.1 ± 69.8 cd/m2, which was about 95.4% of that of the standard conductive ITO/PEN TCF commercial electrode (557.6 ± 29.7 cd/m2).