首先简短地综述了人们关于外延薄膜材料层状(layer-by-layer)生长机制的认识;给出了作者关于自组装量子点外延生长过程的评价和观点,强调了量子点自组装生长过程的复杂性和非线性性质。在对已经发表过的实验数据进一步分析的基础上,作者对一个量子点自组装生长形成所需要的时间作了一个估算,说明这是一个非常快的过程(<10-4s)。最后,作者提出了一个理解量子点自组装生长过程机制的模型。 First of all, a brief review of people’s understanding of the layer-by-layer growth mechanism of epitaxial thin films is given. The authors also give comments and opinions on the self-assembled quantum dots epitaxial growth process, emphasizing the quantum dot self-assembly growth process Complex and non-linear nature. Based on the further analysis of published experimental data, the authors estimate the time required for the formation of a QD self-assembly, indicating that this is a very fast process (<10-4 s). Finally, the author proposed a model to understand the mechanism of quantum dot self-assembly growth.