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Evaluating conducting network based transparent electrodes from geometrical considerations

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dc.contributor.author Kumar, Ankush
dc.contributor.author Kulkarni, G. U.
dc.date.accessioned 2017-01-24T06:23:58Z
dc.date.available 2017-01-24T06:23:58Z
dc.date.issued 2016
dc.identifier.citation Kumar, A.; Kulkarni, G. U., Evaluating conducting network based transparent electrodes from geometrical considerations. Journal of Applied Physics 2016, 119 (1), 8 http://dx.doi.org/10.1063/1.4939280 en_US
dc.identifier.citation Journal of Applied Physics en_US
dc.identifier.citation 119 en_US
dc.identifier.citation 1 en_US
dc.identifier.issn 0021-8979
dc.identifier.uri https://libjncir.jncasr.ac.in/xmlui/10572/2133
dc.description Restricted Access en_US
dc.description.abstract Conducting nanowire networks have been developed as viable alternative to existing indium tin oxide based transparent electrode (TE). The nature of electrical conduction and process optimization for electrodes have gained much from the theoretical models based on percolation transport using Monte Carlo approach and applying Kirchhoff's law on individual junctions and loops. While most of the literature work pertaining to theoretical analysis is focussed on networks obtained from conducting rods (mostly considering only junction resistance), hardly any attention has been paid to those made using template based methods, wherein the structure of network is neither similar to network obtained from conducting rods nor similar to well periodic geometry. Here, we have attempted an analytical treatment based on geometrical arguments and applied image analysis on practical networks to gain deeper insight into conducting networked structure particularly in relation to sheet resistance and transmittance. Many literature examples reporting networks with straight or curvilinear wires with distributions in wire width and length have been analysed by treating the networks as two dimensional graphs and evaluating the sheet resistance based on wire density and wire width. The sheet resistance values from our analysis compare well with the experimental values. Our analysis on various examples has revealed that low sheet resistance is achieved with high wire density and compactness with straight rather than curvilinear wires and with narrower wire width distribution. Similarly, higher transmittance for given sheet resistance is possible with narrower wire width but of higher thickness, minimal curvilinearity, and maximum connectivity. For the purpose of evaluating active fraction of the network, the algorithm was made to distinguish and quantify current carrying backbone regions as against regions containing only dangling or isolated wires. The treatment can be helpful in predicting the properties of a network simply from image analysis and will be helpful in improvisation and comparison of various TEs and better understanding of electrical percolation. (c) 2016 AIP Publishing LLC. en_US
dc.description.uri 1089-7550 en_US
dc.description.uri http://dx.doi.org/10.1063/1.4939280 en_US
dc.language.iso English en_US
dc.publisher American Institute Physics en_US
dc.rights @American Institute Physics, 2016 en_US
dc.subject Physics en_US
dc.subject Carbon Nanotube Networks en_US
dc.subject Nanowire Networks en_US
dc.subject Large-Area en_US
dc.subject Percolation en_US
dc.subject Mesh en_US
dc.subject Performance en_US
dc.subject Fabrication en_US
dc.subject Composites en_US
dc.subject Template en_US
dc.title Evaluating conducting network based transparent electrodes from geometrical considerations en_US
dc.type Article en_US


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