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The device was fabricated with a thin silver film deposited onto ITO on a glass substrate. PEDOT:PSS was spun onto the silver layer followed by P3HT:PCBM and a barium/aluminum back electrode.
FESEM micrograph of a representative silver film on ITO. The white bar is approximately in length.
values plotted vs silver film thickness. The average value for six devices is marked with the ○ symbol, and the error bars are one standard deviation. The continuous (red) fit line is a second order polynomial used to guide the eye.
IPCE spectra of devices containing 1, 2, 3, and silver films demonstrate the increased photocurrent at wavelengths over . The strong absorption of the silver films on the IPCE is also seen as a dip centered near .
Average device parameters as a function of nominal silver film thickness. Errors reported as one standard deviation.
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