Alharshan Gharam A, Uosif Mohamed A M, Abdel-Rahim Rabeea D, Yousef El Sayed, Shaaban Essam Ramadan, Nagiub Adham M
Physics Department, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia.
Physics Department, College of Science, Jouf University, Sakaka P.O. Box 2014, Saudi Arabia.
Materials (Basel). 2023 Aug 7;16(15):5501. doi: 10.3390/ma16155501.
A growing number of people are interested in using silver nanowires (AgNWs) as potential transparent and conductive materials. The production of high-performance and high-throughput AgNWs was successfully optimized in this work using a one-step, straightforward, and reproducible modified polyol approach. The factors influencing the morphology of the silver nanowires have undergone extensive research in order to determine the best-optimized approach for producing AgNWs. The best AgNW morphology, with a length of more than 50 m and a diameter of less than 35 nm (aspect ratio is higher than 1700), was discovered to be produced by a mixture of 44 mM AgNO, 134 mM polyvinylpyrrolidone (PVP) (Mo.Wt 40,000), and 2.4 mM KCl at 160 °C with a stirring rate of 100 rpm. With our improved approach, the overall reaction time was cut from almost an hour with the conventional polyol method to a few minutes. Scanning electron microscopy (SEM), X-ray diffraction (XRD), and ultraviolet (UV) spectroscopy were used to characterize AgNWs. The resultant AgNWs' dispersion was cleaned using a centrifuge multiple times before being deposited on glass and PET substrates at room temperature. In comparison to commercial, delicate, and pricey indium-doped tin oxide (ITO) substrates, the coated samples displayed exceptionally good sheet resistance of 17.05/sq and optical haze lower than 2.5%. Conclusions: Using a simple one-step modified polyol approach, we were able to produce reproducible thin sheets of AgNWs that made excellent, flexible transparent electrodes.
越来越多的人对使用银纳米线（AgNWs）作为潜在的透明导电材料感兴趣。在这项工作中，通过一种一步法、直接且可重复的改进多元醇方法成功优化了高性能、高通量银纳米线的制备。为了确定制备银纳米线的最佳优化方法，对影响银纳米线形态的因素进行了广泛研究。发现由44 mM硝酸银、134 mM聚乙烯吡咯烷酮（PVP）（分子量40,000）和2.4 mM氯化钾的混合物在160°C、搅拌速率为100 rpm的条件下可制备出最佳的银纳米线形态，其长度超过50μm，直径小于35 nm（长径比高于1700）。采用我们改进的方法，总反应时间从传统多元醇方法的近一小时缩短至几分钟。使用扫描电子显微镜（SEM）、X射线衍射（XRD）和紫外（UV）光谱对银纳米线进行表征。所得银纳米线的分散液在室温下多次离心清洗后，沉积在玻璃和PET基板上。与商业的、易碎且昂贵的铟掺杂氧化锡（ITO）基板相比，涂覆后的样品显示出异常良好的方阻为17.05Ω/sq，光学雾度低于2.5%。结论：通过简单的一步法改进多元醇方法，我们能够制备出可重复的银纳米线薄片，这些薄片可制成优异的柔性透明电极。
