band-gap energy

Difference in extent of the Fermi energy and decrease of band-gap energy for three kinds of CNTs show that CNT with one end open is favorable for the preparation of field emission electrode.

三种不同结构的碳纳米管在费米能的增幅上有些差异，带宽减小的程度也是不同的，一端封闭的碳纳米管在F掺杂后费米能的增幅最大，说明在制备场发射电极时选择一端封闭的碳纳米管更加有利。

In the copolymers of fluorene and DBT, the efficient energy transfer due to exciton trapping on narrow band-gap DBT sites has been observed.

在芴与dbt的共聚物中，观察到了由于激子在低带隙单体DBT位置的捕获而产生的有效的能量转移。

The metal photonic band gap structure has potentialities in the areas of high-energy accelerators, microwave vacuum electron devices, and terahertz radiation sources etc.

金属光子带隙结构在高能加速器、微波真空电子器件和太赫兹波源等方面具有重要的应用前景。