考虑卷曲效应 ,构造了扶手形单壁碳纳米管环的单π轨道紧束缚模型 .利用波函数分解方法导出了原子间相互作用矩阵元 ,由此研究了扶手形碳纳米管环的电子性质 .随环半径改变 ,观察到电子结构发生从离散谱到连续谱之间的转变 .计算也表明随管半径改变 ,其能谱也有类似的变化 Considering the curling effect, a single-π orbit tight-binding model of handrail-shaped single-walled carbon nanotube rings was constructed, and the atomic properties of the handrail-shaped carbon nanotube rings were studied by using the wave function decomposition method. As the ring radius changes, the transition of the electronic structure from discrete spectrum to continuous spectrum is observed. The calculations also show that the energy spectra change similarly as the tube radius changes