Abstract
Mechanical polishing is shown to reduce interstitial deposition between silver nanowires patterned on a ferroelectric substrate. The hysteretic electric field of periodically poled ferroelectric lithium niobate (PPLN) exhibits an anomaly at the 180-degree domain boundary. Under ultraviolet excitation, net electronic drift at domain boundaries facilitates preferential photoreduction of silver, thereby creating nanowires. Metallic nanopatterned arrays created by this method lend themselves to applications as surface enhanced Raman substrates or conductors in miniaturized integrated circuits. However, imperfections and discontinuities on the PPLN surface cause interstitial silver growth. An easily repeatable mechanical polishing technique is presented to improve surface quality and thus eliminate the unwanted on-domain growth. Wires are characterized using scanning electron microscopy.
How to Cite
Mosey, A., (2014) “PREPARATION OF LITHIUM NIOBATE FOR SILVER NANOWIRE SYNTHESIS BY MECHANICAL POLISHING”, Capstone, The UNC Asheville Journal of Undergraduate Scholarship 27(1).
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