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Nanowire transformation and annealing by Joule heating

机译：焦耳加热的纳米线转变和退火

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Joule heating of bundles of Mo6S3I6 nanowires, in real time, was studied using in situ TEM probing. TEM imaging, electron diffraction, and conductivity measurements showed a complete transformation of Mo6S3I6 into Mo via thermal decomposition. The resulting Mo nanowires had a conductivity that was 2-3 orders higher than the starting material. The conductivity increased even further, up to 1.8 x 10(6) S m(-1), when the Mo nanowires went through annealing phases. These results suggest that Joule heating might be a general way to transform or anneal nanowires, pointing to applications such as metal nanowire fabrication, novel memory elements based on material transformation, or in situ improvement of field emitters.
机译：使用原位TEM探针实时研究了Mo6S3I6纳米线束的焦耳加热。 TEM成像，电子衍射和电导率测量表明，Mo6S3I6通过热分解完全转化为Mo。所得的Mo纳米线的电导率比起始材料高2-3个数量级。当Mo纳米线经过退火阶段时，电导率甚至进一步提高，达到1.8 x 10（6）S m（-1）。这些结果表明，焦耳加热可能是转换或退火纳米线的一般方法，指向诸如金属纳米线制造，基于材料转换的新型存储元件或现场发射器的原位改进等应用。

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