Scalable Coating and Properties of Transparent, Flexible, Silver Nanowire Electrodes

Handle URI:
http://hdl.handle.net/10754/599555
Title:
Scalable Coating and Properties of Transparent, Flexible, Silver Nanowire Electrodes
Authors:
Hu, Liangbing; Kim, Han Sun; Lee, Jung-Yong; Peumans, Peter; Cui, Yi
Abstract:
We report a comprehensive study of transparent and conductive silver nanowire (Ag NW) electrodes, including a scalable fabrication process, morphologies, and optical, mechanical adhesion, and flexibility properties, and various routes to improve the performance. We utilized a synthesis specifically designed for long and thin wires for improved performance in terms of sheet resistance and optical transmittance. Twenty Ω/sq and ∼ 80% specular transmittance, and 8 ohms/sq and 80% diffusive transmittance in the visible range are achieved, which fall in the same range as the best indium tin oxide (ITO) samples on plastic substrates for flexible electronics and solar cells. The Ag NW electrodes show optical transparencies superior to ITO for near-infrared wavelengths (2-fold higher transmission). Owing to light scattering effects, the Ag NW network has the largest difference between diffusive transmittance and specular transmittance when compared with ITO and carbon nanotube electrodes, a property which could greatly enhance solar cell performance. A mechanical study shows that Ag NW electrodes on flexible substrates show excellent robustness when subjected to bending. We also study the electrical conductance of Ag nanowires and their junctions and report a facile electrochemical method for a Au coating to reduce the wire-to-wire junction resistance for better overall film conductance. Simple mechanical pressing was also found to increase the NW film conductance due to the reduction of junction resistance. The overall properties of transparent Ag NW electrodes meet the requirements of transparent electrodes for many applications and could be an immediate ITO replacement for flexible electronics and solar cells. © 2010 American Chemical Society.
Citation:
Hu L, Kim HS, Lee J-Y, Peumans P, Cui Y (2010) Scalable Coating and Properties of Transparent, Flexible, Silver Nanowire Electrodes. ACS Nano 4: 2955–2963. Available: http://dx.doi.org/10.1021/nn1005232.
Publisher:
American Chemical Society (ACS)
Journal:
ACS Nano
KAUST Grant Number:
KUS-11-001-12
Issue Date:
25-May-2010
DOI:
10.1021/nn1005232
PubMed ID:
20426409
Type:
Article
ISSN:
1936-0851; 1936-086X
Sponsors:
The authors acknowledge support from the King Abdullah University of Science and Technology (KAUST) Investigator Award (No. KUS-11-001-12), Stanford Global Climate and Energy Projects, and U.S. Department of Energy. The authors also acknowledge some experimental help from Steve Connor and Chong Xie.
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorHu, Liangbingen
dc.contributor.authorKim, Han Sunen
dc.contributor.authorLee, Jung-Yongen
dc.contributor.authorPeumans, Peteren
dc.contributor.authorCui, Yien
dc.date.accessioned2016-02-28T05:53:17Zen
dc.date.available2016-02-28T05:53:17Zen
dc.date.issued2010-05-25en
dc.identifier.citationHu L, Kim HS, Lee J-Y, Peumans P, Cui Y (2010) Scalable Coating and Properties of Transparent, Flexible, Silver Nanowire Electrodes. ACS Nano 4: 2955–2963. Available: http://dx.doi.org/10.1021/nn1005232.en
dc.identifier.issn1936-0851en
dc.identifier.issn1936-086Xen
dc.identifier.pmid20426409en
dc.identifier.doi10.1021/nn1005232en
dc.identifier.urihttp://hdl.handle.net/10754/599555en
dc.description.abstractWe report a comprehensive study of transparent and conductive silver nanowire (Ag NW) electrodes, including a scalable fabrication process, morphologies, and optical, mechanical adhesion, and flexibility properties, and various routes to improve the performance. We utilized a synthesis specifically designed for long and thin wires for improved performance in terms of sheet resistance and optical transmittance. Twenty Ω/sq and ∼ 80% specular transmittance, and 8 ohms/sq and 80% diffusive transmittance in the visible range are achieved, which fall in the same range as the best indium tin oxide (ITO) samples on plastic substrates for flexible electronics and solar cells. The Ag NW electrodes show optical transparencies superior to ITO for near-infrared wavelengths (2-fold higher transmission). Owing to light scattering effects, the Ag NW network has the largest difference between diffusive transmittance and specular transmittance when compared with ITO and carbon nanotube electrodes, a property which could greatly enhance solar cell performance. A mechanical study shows that Ag NW electrodes on flexible substrates show excellent robustness when subjected to bending. We also study the electrical conductance of Ag nanowires and their junctions and report a facile electrochemical method for a Au coating to reduce the wire-to-wire junction resistance for better overall film conductance. Simple mechanical pressing was also found to increase the NW film conductance due to the reduction of junction resistance. The overall properties of transparent Ag NW electrodes meet the requirements of transparent electrodes for many applications and could be an immediate ITO replacement for flexible electronics and solar cells. © 2010 American Chemical Society.en
dc.description.sponsorshipThe authors acknowledge support from the King Abdullah University of Science and Technology (KAUST) Investigator Award (No. KUS-11-001-12), Stanford Global Climate and Energy Projects, and U.S. Department of Energy. The authors also acknowledge some experimental help from Steve Connor and Chong Xie.en
dc.publisherAmerican Chemical Society (ACS)en
dc.subjectFlexible electronicsen
dc.subjectMetal nanowireen
dc.subjectScalable coatingen
dc.subjectSolar cellsen
dc.subjectTransparent electrodeen
dc.titleScalable Coating and Properties of Transparent, Flexible, Silver Nanowire Electrodesen
dc.typeArticleen
dc.identifier.journalACS Nanoen
dc.contributor.institutionStanford University, Palo Alto, United Statesen
kaust.grant.numberKUS-11-001-12en
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