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The fabrication of integrated carbon pipes with sub-micron diameters

机译：具有亚微米直径的集成碳管的制造

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摘要

A method for fabricating integrated carbon pipes (nanopipettes) of sub-micron diameters and tens of microns in length is demonstrated. The carbon pipes are formed from a template consisting of the tip of a pulled alumino-silicate glass capillary coated with carbon deposited from a vapour phase. This method renders carbon nanopipettes without the need for ex situ assembly and facilitates parallel production of multiple carbon-pipe devices. An electric-field-driven transfer of ions in a KCl solution through the integrated carbon pipes exhibits nonlinear current-voltage (I-V) curves, markedly different from the Ohmic I-V curves observed in glass pipettes under similar conditions. The filling of the nanopipette with fluorescent suspension is also demonstrated.
机译：展示了一种制造亚微米直径和数十微米长度的集成碳管（纳米移液器）的方法。碳管由模板组成，该模板由拉制的铝硅酸盐玻璃毛细管的尖端组成，该毛细管涂有从气相沉积的碳。该方法无需额外组装就可提供碳纳米管，并便于并行生产多个碳管装置。电场驱动的KCl溶液中离子通过集成碳管的传输呈现出非线性电流-电压（I-V）曲线，与在类似条件下在玻璃移液器中观察到的Ohmic I-V曲线明显不同。还证明了用荧光悬浮液填充纳米吸管。

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