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Field-assisted nanopatterning of metals, metal oxides and metal salts

机译：金属，金属氧化物和金属盐的场辅助纳米图案化

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摘要

The tip-based nanofabrication method called field-assisted nanopatterning or FAN has now been extended to the transfer of metals, metal oxides and metal salts onto various receiving substrates including highly ordered pyrolytic graphite, passivated gold and indium-tin oxide. Standard atomic force microscope tips were first dip-coated using suspensions of inorganic compounds in solvent. The films prepared in this manner were non-uniform and contained inorganic nanoparticles. Tip-based nanopatterning on chosen substrates was conducted under high electric field conditions. The same tip was used for both nanofabrication and imaging. Arbitrary patterns were formed with dimensions that ranged from tens of microns to sub-20 nm and were controlled by tuning the tip bias during fabrication. Most tip-based nanopatterning techniques are limited in terms of the type of species that can be deposited and the type of substrates onto which the deposition occurs. With the successful deposition of inorganic species reported here, FAN is demonstrated to be a truly versatile tip-based nanofabrication technique that is useful for the deposition of a wide variety of both organic and inorganic species including small molecules, large molecules and polymers.
机译：基于尖端的纳米制造方法（称为场辅助纳米图案化或FAN）现已扩展到将金属，金属氧化物和金属盐转移到各种接收衬底上，包括高度有序的热解石墨，钝化金和铟锡氧化物。首先使用无机化合物在溶剂中的悬浮液对标准原子力显微镜尖端进行浸涂。以这种方式制备的膜是不均匀的并且包含无机纳米颗粒。在高电场条件下在选定的基底上进行基于尖端的纳米图案化。纳米制造和成像使用相同的尖端。所形成的任意图案的尺寸范围从几十微米到20 nm以下，并通过在制造过程中调整尖端偏压来控制。大多数基于尖端的纳米图案化技术在可沉积的物种类型和在其上发生沉积的基板类型方面均受到限制。随着此处报道的无机物的成功沉积，FAN被证明是一种真正的多用途的基于尖端的纳米制造技术，可用于沉积多种有机和无机物，包括小分子，大分子和聚合物。

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