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Structural and electronic characteristics induced by carbonization control of mesoporous carbon nanofibers

机译：介孔碳纳米纤维碳化控制引起的结构和电子特性

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摘要

Mesoporous carbon nanofibers (MCNFs) are fabricated at various carbonization temperatures. The carbonization temperature plays a key role in determining the structural characteristics and the electronic properties of MCNFs. The band gap energies of MCNFs are estimated to be 0.080,0.036, and 0.014 eV at the carbonization temperatures of 600,900, and 1200℃, respectively. The MCNF carbonized at 1200℃ has the highest stacking height of graphene planes (L_c) and the largest number of graphene layers (L_c/d). Raman data show the intensity ratio of D to G peaks, which is related to the graphene size (L_a). L_a, increases with increasing the carbonization temperature. In addition, as the carbonization temperature increases, the conductivity of MCNF increases due to Urges values of L_c, L_a, and L_c/d.
机译：中孔碳纳米纤维（MCNFs）是在各种碳化温度下制造的。碳化温度在确定MCNFs的结构特征和电子特性中起着关键作用。碳化温度为600,900和1200℃时，MCNF的带隙能估计分别为0.080、0.036和0.014 eV。在1200℃碳化的MCNF具有最高的石墨烯平面堆积高度（L_c）和最大的石墨烯层数量（L_c / d）。拉曼数据显示D与G峰的强度比，这与石墨烯尺寸（L_a）有关。 L_a随着碳化温度的升高而增加。另外，随着碳化温度升高，由于Lurges L_c，L_a和L_c / d的值，MCNF的电导率增加。

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