Predictive Model for the Electrical Transport within Nanowire NetworksShow others and affiliations
2018 (English)In: ACS Nano, ISSN 1936-0851, E-ISSN 1936-086X, Vol. 12, no 11, p. 11080-11087Article in journal (Refereed) Published
Abstract [en]
Thin networks of high aspect ratio conductive nanowires can combine high electrical conductivity with excellent optical transparency, which has led to a widespread use of nanowires in transparent electrodes, transistors, sensors, and flexible and stretchable conductors. Although the material and application aspects of conductive nanowire films have been thoroughly explored, there is still no model which can relate fundamental physical quantities, like wire resistance, contact resistance, and nanowire density, to the sheet resistance of the film. Here, we derive an analytical model for the electrical conduction within nanowire networks based on an analysis of the parallel resistor network. The model captures the transport characteristics and fits a wide range of experimental data, allowing for the determination of physical parameters and performance-limiting factors, in sharp contrast to the commonly employed percolation theory. The model thus constitutes a useful tool with predictive power for the evaluation and optimization of nanowire networks in various applications.
Place, publisher, year, edition, pages
AMER CHEMICAL SOC , 2018. Vol. 12, no 11, p. 11080-11087
Keywords [en]
nanowires; carbon nanotubes; nanowire network; electrical transport; model; percolation; silver nanowires
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:liu:diva-153540DOI: 10.1021/acsnano.8b05406ISI: 000451789200047PubMedID: 30398851OAI: oai:DiVA.org:liu-153540DiVA, id: diva2:1273214
Note
Funding Agencies|ETH Zurich; Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoping University (Faculty Grant SFO Mat LiU) [2009 00971]; Swedish Foundation for Strategic Research
2018-12-202018-12-202019-03-22