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Open AccessArticle

Modulating the Optoelectronic Properties of Silver Nanowires Films: Effect of Capping Agent and Deposition Technique

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Departamento de Química Física, Facultad de Ciencias Químicas, Universidad de Salamanca, Salamanca 37008, Spain
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GRAnPH Nanotech, Grupo Antolín Ingeniería SA, Burgos 09007, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Jung Ho Je
Materials 2015, 8(11), 7622-7633; https://doi.org/10.3390/ma8115405
Received: 25 September 2015 / Revised: 23 October 2015 / Accepted: 3 November 2015 / Published: 11 November 2015
(This article belongs to the Section Structure Analysis and Characterization)
Silver nanowires 90 nm in diameter and 9 µm in length have been synthesized using different capping agents: polyvinyl pyrrolidone (PVP) and alkyl thiol of different chain lengths. The nanowire structure is not influenced by the displacement of PVP by alkyl thiols, although alkyl thiols modify the lateral aggregation of nanowires. We examined the effect of the capping agent and the deposition method on the optical and electrical properties of films prepared by Spray and the Langmuir-Schaefer methodologies. Our results revealed that nanowires capped with PVP and C8-thiol present the best optoelectronic properties. By using different deposition techniques and by modifying the nanowire surface density, we can modulate the optoelectronic properties of films. This strategy allows obtaining films with the optoelectronic properties required to manufacture touch screens and electromagnetic shielding. View Full-Text
Keywords: silver nanowires; spray-coating; Langmuir-Schaefer; transparent conductive electrodes silver nanowires; spray-coating; Langmuir-Schaefer; transparent conductive electrodes
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MDPI and ACS Style

Lopez-Diaz, D.; Merino, C.; Velázquez, M.M. Modulating the Optoelectronic Properties of Silver Nanowires Films: Effect of Capping Agent and Deposition Technique. Materials 2015, 8, 7622-7633.

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