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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Heat treatment effect of field emission rom carbon inverse opals
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Heat treatment effect of field emission rom carbon inverse opals

机译：碳反蛋白石场发射的热处理效果

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摘要

Carbon inverse opals (CIOs) are fabricated by a replica method using synthetic opals formed by the sedimentation of SiO_2 spheres as a template. The pore size of the CIOs is determined by the diameter of the SiO_2 spheres. These periodic structures of carbon exhibit field emission (FE) characteristics. The main emission sites of CIOs are interpreted to be the sharp edge of triangular prisms formed along the boundary of the neighbouring pores. The FE characteristics improved upon heat treatment at high temperature, in cases where the pore structure was not deformed. The graphitization of the carbon and the shrinking of the pore structure led to an improvement of the FE characteristics. On the other hand, the deformation of the pore structure prevents the FE characteristics from improving.
机译：碳反蛋白石（CIO）是通过复制方法制造的，该方法使用通过沉积SiO_2球形成的合成蛋白石作为模板。 CIO的孔径取决于SiO_2球的直径。碳的这些周期性结构表现出场发射（FE）特性。 CIO的主要发射点被解释为沿相邻孔隙边界形成的三棱柱的尖锐边缘。在孔结构不变形的情况下，通过高温热处理，FE特性得到改善。碳的石墨化和孔结构的收缩导致FE特性的改善。另一方面，孔结构的变形阻碍了FE特性的改善。

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