Silver nanowire purification and separation by size and shape using multi-pass filtration

Jarrett, Ross; Crook, R.

doi:10.1179/1433075x15y.0000000016

Cited by 12 publications

(2 citation statements)

References 36 publications

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“…All of these methods are effective for purifying UTAgNWs; however, either toxic chemicals such as acetone were involved or the process was difficult to scale-up. It has been less efficient to purify UTAgNWs individually using decantation, centrifugation, and filtration procedures. − Recently, Wang et al proposed a dynamic agitation-induced centrifugal purification method to purify AgNWs (an average diameter of 40 nm) with ethanol as the cleaning agent in a high throughput. The working principle has been analyzed, and the experimental parameters that affect the efficacy of the purification process have been quantitatively investigated.…”

Section: Introductionmentioning

confidence: 99%

Water-Based Purification of Ultrathin Silver Nanowires toward Transparent Conductive Films with a Transmittance Higher than 99%

Chen

Yang

et al. 2019

ACS Appl. Mater. Interfaces

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Ultrathin silver nanowires (UTAgNWs) are indispensable to achieve transparent conductive films (TCFs) with overall optoelectronic performance exceeding that of the state-of-the-art indium tin oxide films. Impurities in raw UTAgNW products severely impair the optical properties of TCFs. Unfortunately, highly effective and environment-friendly approaches for purification of UTAgNWs are still lacking. Herein, we report the purification of UTAgNWs using deionized water along with a small amount of surfactants as the purifying agent. TCFs coated with the purified UTAgNWs exhibit a light transmittance of 97.9% and a haze of 1.22% at a sheet resistance of 36.3 Ω sq–1 or a light transmittance of 99.8% and a haze of 0.47% at a sheet resistance of 187.3 Ω sq–1. Both the transmittance and the haze are among the best reported values for AgNW TCFs in the literature. The purification process does not involve any toxic or hazardous chemicals and is both scalable and cost-effective.

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Section: Introductionmentioning

confidence: 99%

Water-Based Purification of Ultrathin Silver Nanowires toward Transparent Conductive Films with a Transmittance Higher than 99%

Chen

Yang

et al. 2019

ACS Appl. Mater. Interfaces

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“…The polyol method is the most common and the simplest method for large-scale and high-quality production of AgNWs, and it does not require much technical knowledge. However, it is not easy to produce AgNWs of uniform shape and size, and the final products are usually contaminated with silver nanoparticles (AgNPs) that must be removed from AgNWs to obtain AgNWs with good optical and electrical properties [21].…”

Section: Introductionmentioning

confidence: 99%

Developing a Simple, Effective, and Quick Process to Make Silver Nanowires with a High Aspect Ratio

et al. 2023

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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 AgNO3, 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.

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Metal Nanowires

Chen

2018

Transparent Conductive Materials

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Silver nanowire purification and separation by size and shape using multi-pass filtration

Abstract: This is a repository copy of Silver nanowire purification and separation by size and shape using multi-pass filtration.

Cited by 12 publications

References 36 publications

Water-Based Purification of Ultrathin Silver Nanowires toward Transparent Conductive Films with a Transmittance Higher than 99%

Water-Based Purification of Ultrathin Silver Nanowires toward Transparent Conductive Films with a Transmittance Higher than 99%

Developing a Simple, Effective, and Quick Process to Make Silver Nanowires with a High Aspect Ratio

Metal Nanowires

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