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本文通过求解薛定谔方程得到由分段线性势垒构成的量子系统的变换矩阵和透射系数的精确解，并利用这一结果计算了双量子阱系统的偏压隧道电流，讨论了双量子阱系统结构变化对其伏安特性的影响。与单量子阱系统的比较表明，双量子阱系统在某些方面，如电流峰谷比，负微分电阻区等优于单量子阱系统。
In this paper, the exact solution to the transformation matrix and the transmission coefficient of a quantum system composed of piecewise linear barriers is obtained by solving the Schrödinger equation, and the biased tunneling current of the double quantum well system is calculated using this result. The structure of double quantum well system Influence of Variations on Volt-ampere Characteristics. Comparison with a single quantum well system shows that the dual quantum well system outperforms a single quantum well system in certain aspects such as current-to-peak ratio, negative differential resistance area, and the like.