Silver nanowire synthesis analyzing NaCl, CuCl2, and NaBr as halide salt with additional thermal, acid, and solvent post-treatments for transparent and flexible electrode applications

Silver nanowires (AgNWs) are promising materials for applications that require conductivity associated with transparency and mechanical flexibility. Controlling the physical characteristics, as well as the synthesis residues, are the biggest challenges to be overcome during the production of silver...

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Bibliographic Details
Published in:Applied nanoscience 2022-02, Vol.12 (2), p.205-213
Main Authors: Yamamoto, Erika Gomes, Dantas, Marina Proença, Yamanishi, Gustavo, Soares, Felipe Barbosa, Urbano, Alexandre, Lourenço, Sidney Alves, Cava, Carlos Eduardo
Format: Article
Language:English
Subjects:
Chemistry and Materials Science
Copper chloride
Electrical resistivity
Materials Science
Membrane Biology
Nanochemistry
Nanotechnology
Nanotechnology and Microengineering
Nanowires
Original Article
Physical properties
Sodium bromides
Solvents
Synthesis
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Summary:Silver nanowires (AgNWs) are promising materials for applications that require conductivity associated with transparency and mechanical flexibility. Controlling the physical characteristics, as well as the synthesis residues, are the biggest challenges to be overcome during the production of silver nanowires. Here, the impact of using NaCl, CuCl 2 , or NaBr as halide salt on the physical characteristics of the AgNWs was evaluated. The values of the diameters obtained were 40.3 nm for NaCl, 142.5 nm for CuCl 2 , and 21.3 nm for NaBr. An evaluation of deposition parameters was performed and a sheet resistance of 9.4 Ohm/sq combined with a transmittance of 77.2% was achieved. Additionally, three post-treatments (acid vapor exposition, organic solvent washing, and thermal annealing) were applied to AgNWs films. The acid vapor exposition was the only effective treatment that improved the electrical conductivity by 20%, reaching values of 4.5 Ohm/sq.
ISSN:2190-5509
2190-5517
DOI:10.1007/s13204-021-02305-5