A New Method for Calculating the Sublevels of Multi-quantum Well Structures

The sublevels of multi-quantum well structures (MQW) are calculated by the electron interference model and Kronig-Penney model, respectively. Comparing the values calculated theoretically with results measured in experiment, we can see that the values calculated theoretically by the electron interference model are all in excellent agreement with the results measured in experiments. Whereas, most of results calculated by Kronig-Penney model are out of accord with ones measured in experiments and the reason why the theoretical calculation is inconsistent with the experimental result is discussed. Calculating the sublevels of MQW by the electron interference is still easier and more convenient than that by Kronig-Penney model.