Highly Transparent and Conductive Electrodes Enabled by Scalable Printing-and-Sintering of Silver Nanowires

Abstract
Silver nanowires (Ag NWs) have promised well for flexible and transparent electronics. However, It remains an open question on how to achieve large-scale printing of Ag NWs with high optical transparency, electrical conductivity, and mechanical durability for practical applications, though extensive research for more than one decade. In this work, we propose a possible solution that integrates screen printing of Ag NWs with flash-light sintering (FLS). We demonstrate that the use of low-concentration, screen-printable Ag NW ink enables large-area and high-resolution patterning of Ag NWs. A critical advantage comes from the FLS process that allows low-temperature processing, short operational time, and high output rate - characteristics that fit the scalable manufacturing. Importantly, we show that the resultant Ag NW patterns feature low sheet resistance (1.1-9.2 Ohm/sq), high transparency (75.2-92.6%), and thus a remarkable figure of merit comparable to state of the art. These outstanding properties of Ag NW patterns, together with their scalable fabrication method we proposed, would facilitate many Ag NW-based applications, such as transparent heater, stretchable displays, and wearable devices; here, we demonstrate the novel design of flexible and transparent radio frequency 5G antennas.

Citation
li, weiwei, Yarali, E., Bakytbekov, A., Anthopoulos, T. D., & Shamim, A. (2020). Highly Transparent and Conductive Electrodes Enabled by Scalable Printing-and-Sintering of Silver Nanowires. Nanotechnology. doi:10.1088/1361-6528/ab9c53

Acknowledgements
The research for this paper is financially supported by King Abdullah University of Science and Technology (KAUST).

Publisher
IOP Publishing

Journal
Nanotechnology

DOI
10.1088/1361-6528/ab9c53

PubMed ID
32531776

Additional Links
https://iopscience.iop.org/article/10.1088/1361-6528/ab9c53

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