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The optical and electrical properties of silver nanowire mesh films
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10.1063/1.4812390
/content/aip/journal/jap/114/2/10.1063/1.4812390
http://aip.metastore.ingenta.com/content/aip/journal/jap/114/2/10.1063/1.4812390

Figures

Image of FIG. 1.
FIG. 1.

Surface fraction ϕ as measured by optical transmission, versus ϕd as measured by weight fraction of AgNW in film and its thickness d, for S-3 nanowire of Table I .

Image of FIG. 2.
FIG. 2.

Optical transmission versus silver area coverage ϕ for S-1, S-3, and S-6 nanowires.

Image of FIG. 3.
FIG. 3.

Optical transmission versus wavelength for S-3 nanowire films with thickness d = 50 nm and w% = 40 (thin continuous line) and 50% loadings (thick continuous line). Calculated curves are shown as (- - - - -, 40% AgNW) and (………., 50% AgNW).

Image of FIG. 4.
FIG. 4.

Optical haze versus silver area coverage ϕ for nanowires S-1, S-3, and S-6. Calculated curves are shown as (_________, S-1), (- - - - - - - -, S-3) and (………, S-6).

Image of FIG. 5.
FIG. 5.

Scattering geometry of nanowires in films.

Image of FIG. 6.
FIG. 6.

Slope of Haze(%) versus ϕ, Haze(%)/ϕ, as a function of AgNW diameter.

Image of FIG. 7.
FIG. 7.

Real refractive index n of 20, 30% w/w S-2 AgNW/polymer composite. Experimental measurements are thin and thick continuous lines for 20% and 30% AgNW/polymer, respectively. Theoretical calculations are by the theories of Van De Hulst (– – – – – –, thick, thin) and Maxwell Garnett (………, thick, thin) for 20 and 30% AgNW/polymer, respectively.

Image of FIG. 8.
FIG. 8.

Imaginary refractive index k of 20, 30% w/w S-2 AgNW/polymer composite. Experimental measurements are thin and thick continuous lines for 20% and 30% AgNW/polymer, respectively. Theoretical calculations are by the theories of Van De Hulst (– – – – – –, thick, thin) and Maxwell Garnett (………, thick, thin) for 20% and 30% AgNW/polymer, respectively.

Image of FIG. 9.
FIG. 9.

Sheet resistance R versus silver area coverage ϕ for S-1, S-3, and S-6 nanowires. The sheet resistance increases nonlinearly as the critical percolation concentration ϕ is approached. It is different for every wire and is a function of ⟨L⟩⟨D⟩/⟨L⟩.

Image of FIG. 10.
FIG. 10.

1/R versus ϕ for S-1, S-3, and S-6, nanowires. The curves are the best fits to the data with the equation . (__________, S-1), (- - - - - -, S-3), and (………., S-6).

Image of FIG. 11.
FIG. 11.

Material parameter 1/M′ versus nanowire diameter ⟨D⟩.

Image of FIG. 12.
FIG. 12.

Critical percolation concentration ϕ versus nanowire aspect ratio ⟨D⟩⟨L⟩/⟨L⟩, calculated in Table II .

Image of FIG. 13.
FIG. 13.

Critical exponent t versus nanowires aspect ratio ⟨D⟩⟨L⟩/⟨L⟩, calculated in Table II .

Image of FIG. 14.
FIG. 14.

Optical transmission versus sheet resistance R for S-1, S-3, and S-6 nanowires. Theoretical curves are (- - - - - - - -, S-1), (________, S-3), and (………., S-6).

Image of FIG. 15.
FIG. 15.

Haze versus sheet resistance R, for S-1, S-3, and S-6 nanowires. Theoretical curves are (- - - - - -, S-1), (_________, S-3), and (………., S-6).

Image of FIG. 16.
FIG. 16.

Fluctuation in sheet resistance ΔRs/Rs versus silver surface coverage ϕ. Lines are drawn to guide reader to trends and are not best fit lines. (___________, S-1), (- - - - - - - - -, S-3), and (…………, S-6). Note the nonlinear increase in fluctuations as ϕ approaches the critical percolation concentration ϕ as described by Eq. (19) .

Image of FIG. 17.
FIG. 17.

Experimental FOM 1/HR versus silver area coverage ϕ for nanowires S-1 and S-3. Theoretical curves are (_________, S-1) and (- - - - - - -, S-3).

Image of FIG. 18.
FIG. 18.

Experimental FOM T/R versus silver coverage ϕ for nanowires S-1, S-3, and S-6. Theoretical curves are (- - - - - -, S-1), (___________, S-3), and (………, S-6).

Image of FIG. 19.
FIG. 19.

Experimental T/H versus silver coverage ϕ for nanowires S-1, S-3, and S-6. Theoretical curves are (- - - - - -, S-1), (___________, S-3), and (…………., S-6).

Tables

Generic image for table
Table I.

Average diameters D and lengths L, their standard rms deviations ΔD, ΔL, respectively, measured by SEM, and calculated average extinction coefficients C/wire volume, and scattering efficiency Q (C/wire area) for silver nanowires, λ = 600 nm.

Generic image for table
Table II.

Best fit parameters to Eq. (18) . Column 1 is the designated and its average diameter. Column 2 is the calculated value of ⟨L⟩⟨D⟩/⟨L⟩ based on the lognormal fit to the experimental D and L SEM data. Columns 3-5 are the best fits parameters of Eq. (18) to the sheet resistance R versus ϕ data. 1/M′ is the material parameter, ϕ is the critical percolation concentration and t is the critical exponent for percolation.

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/content/aip/journal/jap/114/2/10.1063/1.4812390
2013-07-08
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: The optical and electrical properties of silver nanowire mesh films
http://aip.metastore.ingenta.com/content/aip/journal/jap/114/2/10.1063/1.4812390
10.1063/1.4812390
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