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Article: Ultrathin-shell epitaxial Ag@Au core-shell nanowires for high-performance and chemically-stable electronic, optical, and mechanical devices

TitleUltrathin-shell epitaxial Ag@Au core-shell nanowires for high-performance and chemically-stable electronic, optical, and mechanical devices
Authors
Keywordsepitaxial growth
core-shell nanowire
plasmonic waveguides
atomic force microscopy (AFM) probe
transparent electrodewearable electronics
Issue Date2021
PublisherTsinghua University Press, co-published with Springer Verlag. The Journal's web site is located at http://www.springer.com/materials/nanotechnology/journal/12274
Citation
Nano Research, 2021, v. 14, p. 4294-4303 How to Cite?
AbstractSilver nanowires (AgNWs) hold great promise for applications in wearable electronics, flexible solar cells, chemical and biological sensors, photonic/plasmonic circuits, and scanning probe microscopy (SPM) due to their unique plasmonic, mechanical, and electronic properties. However, the lifetime, reliability, and operating conditions of AgNW-based devices are significantly restricted by their poor chemical stability, limiting their commercial potentials. Therefore, it is crucial to create a reliable oxidation barrier on AgNWs that provides long-term chemical stability to various optical, electrical, and mechanical devices while maintaining their high performance. Here we report a room-temperature solution-phase approach to grow an ultra-thin, epitaxial gold coating on AgNWs to effectively shield the Ag surface from environmental oxidation. The Ag@Au core-shell nanowires (Ag@Au NWs) remain stable in air for over six months, under elevated temperature and humidity (80 °C and 100% humidity) for twelve weeks, in physiological buffer solutions for three weeks, and can survive overnight treatment of an oxidative solution (2% H2O2). The Ag@Au core-shell NWs demonstrated comparable performance as pristine AgNWs in various electronic, optical, and mechanical devices, such as transparent mesh electrodes, surface-enhanced Raman spectroscopy (SERS) substrates, plasmonic waveguides, plasmonic nanofocusing probes, and high-aspect-ratio, high-resolution atomic force microscopy (AFM) probes. These Au@Ag core-shell NWs offer a universal solution towards chemically-stable AgNW-based devices without compromising material property or device performance.
Persistent Identifierhttp://hdl.handle.net/10722/305813
ISSN
2021 Impact Factor: 10.269
2020 SCImago Journal Rankings: 2.536
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZhu, Y-
dc.contributor.authorKim, S-
dc.contributor.authorMa, X-
dc.contributor.authorByrley, P-
dc.contributor.authorYu, N-
dc.contributor.authorLiu, Q-
dc.contributor.authorSun, X-
dc.contributor.authorXu, D-
dc.contributor.authorPeng, S-
dc.contributor.authorHartel, M-
dc.contributor.authorZhang, S-
dc.contributor.authorJucaud, V-
dc.contributor.authorDokmeci, M-
dc.contributor.authorKhademhosseini, A-
dc.contributor.authorYan, R-
dc.date.accessioned2021-10-20T10:14:41Z-
dc.date.available2021-10-20T10:14:41Z-
dc.date.issued2021-
dc.identifier.citationNano Research, 2021, v. 14, p. 4294-4303-
dc.identifier.issn1998-0124-
dc.identifier.urihttp://hdl.handle.net/10722/305813-
dc.description.abstractSilver nanowires (AgNWs) hold great promise for applications in wearable electronics, flexible solar cells, chemical and biological sensors, photonic/plasmonic circuits, and scanning probe microscopy (SPM) due to their unique plasmonic, mechanical, and electronic properties. However, the lifetime, reliability, and operating conditions of AgNW-based devices are significantly restricted by their poor chemical stability, limiting their commercial potentials. Therefore, it is crucial to create a reliable oxidation barrier on AgNWs that provides long-term chemical stability to various optical, electrical, and mechanical devices while maintaining their high performance. Here we report a room-temperature solution-phase approach to grow an ultra-thin, epitaxial gold coating on AgNWs to effectively shield the Ag surface from environmental oxidation. The Ag@Au core-shell nanowires (Ag@Au NWs) remain stable in air for over six months, under elevated temperature and humidity (80 °C and 100% humidity) for twelve weeks, in physiological buffer solutions for three weeks, and can survive overnight treatment of an oxidative solution (2% H2O2). The Ag@Au core-shell NWs demonstrated comparable performance as pristine AgNWs in various electronic, optical, and mechanical devices, such as transparent mesh electrodes, surface-enhanced Raman spectroscopy (SERS) substrates, plasmonic waveguides, plasmonic nanofocusing probes, and high-aspect-ratio, high-resolution atomic force microscopy (AFM) probes. These Au@Ag core-shell NWs offer a universal solution towards chemically-stable AgNW-based devices without compromising material property or device performance.-
dc.languageeng-
dc.publisherTsinghua University Press, co-published with Springer Verlag. The Journal's web site is located at http://www.springer.com/materials/nanotechnology/journal/12274-
dc.relation.ispartofNano Research-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectepitaxial growth-
dc.subjectcore-shell nanowire-
dc.subjectplasmonic waveguides-
dc.subjectatomic force microscopy (AFM) probe-
dc.subjecttransparent electrodewearable electronics-
dc.titleUltrathin-shell epitaxial Ag@Au core-shell nanowires for high-performance and chemically-stable electronic, optical, and mechanical devices-
dc.typeArticle-
dc.identifier.emailZhang, S: beszhang@hku.hk-
dc.identifier.authorityZhang, S=rp02764-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1007/s12274-021-3718-z-
dc.identifier.scopuseid_2-s2.0-85112621971-
dc.identifier.hkuros328136-
dc.identifier.volume14-
dc.identifier.spage4294-
dc.identifier.epage4303-
dc.identifier.isiWOS:000682660400008-
dc.publisher.placeChina-

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