研究目的
To investigate the effects of the number of layers of AgNWs coating, the concentration of AgNWs, and the length of AgNWs on the microstructure and electrical properties of flexible circuits made with silver nanowires inks on photographic paper substrates.
研究成果
The conductivity of AgNW coatings increases with more layers, higher concentration, and longer nanowires. Optimal performance was achieved with longer AgNWs and higher concentrations, demonstrating potential for flexible electronics applications, as shown by successful LED device integration.
研究不足
The stability of AgNWs inks was not good, with settling occurring after 7-15 days at room temperature. Higher concentration inks may lead to deposition issues. The study is limited to room temperature processing and specific substrate and coating methods.
1：Experimental Design and Method Selection:
The study involved synthesizing AgNWs using the polyol solvothermal method, modifying their length via sonication-induced scission, preparing conductive inks with AgNWs in anhydrous ethanol, and coating them on photographic paper using a knife coating process. The effects of coating layers, concentration, and nanowire length on electrical properties were analyzed using SEM and four-point probe measurements.
2：Sample Selection and Data Sources:
Resin coated photographic paper was used as the substrate. AgNWs were synthesized and treated to vary lengths.
3：List of Experimental Equipment and Materials:
Chemicals included silver nitrate, PVP, ferric chloride hexahydrate, ethylene glycol, ethanol absolute. Equipment included a sonicator (JP-120ST), SEM (zeiss sigma 500), XRD (DIFFRRACTOMETER), and four-point probe instrument (ST2253).
4：3).
Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: AgNWs were synthesized, sonicated for different times to vary length, inks were prepared and coated on paper, dried at room temperature, and characterized for microstructure and sheet resistance.
5：Data Analysis Methods:
SEM images were analyzed using ImageJ software for length measurements, XRD for phase analysis, and four-point probe for electrical resistance.
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