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Electrodes formation method has been found to be very important in electronic devices using ferroelectric P(VDF-TrFE) copolymer. Depending on the deposition system used, vacuum-based deposition methods such as e-beam or thermal evaporation of metal electrodes has resulted in the performance deterioration, due to damages on the fragile organic surface by highly energetic particles such as intensive...
The crystallization of thin polymer film depends on surface/interface properties, due to the fact that molecular chain motion is affected by the presence of the surface. In this work, we measured the ferroelectric properties, crystallinity, chain conformation and surface morphologies of one-dimensionally confined P(VDF-TrFE) thin films using transfer-printed Au film, annealed at elevated temperatures,...
Oxidizable metals such as Al are found to become highly resistive when exposed to air in buckled state, >10× resistance increase compared to that in flat configuration. On the other hand, noble metal and oxide conductor films, such as Au and indium tin oxide show negligible resistance increase. The enhanced oxidation of grain boundaries that are exposed to air when buckled is found to be responsible...
The buckling-based measurement of mechanical properties of material is reviewed here, which is a very useful technique for the characterization of thin films, nano- or molecular-scale materials, etc. This method is shown to be useful to measure elastic moduli of various thin films such as polymers, polyelectrolyte multilayers (PEM), single-wall carbon nanotubes (SWNT) and millimeter-thick polymer...
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