The self-assembly of colloidal nanocrystals at interfaces provides a bottom-up approach to create functional materials for developing next-generation flexible optoelectronic devices and sensors. In this work, we report phase diagrams of simple models of colloidal nanocrystals confined at a flat interface. By performing extensive computer simulations we elucidate the mesoscale organization that takes place as different parameters are varied. Our simulation results uncover rich phase diagrams where hexagonal, rhomboid, honeycomb and stripe phases as well as hierarchical self-assembly are found. Our results could serve as a guideline for experimentalists to design colloidal nanocrystal arrangements to target specific applications.

胶体纳米晶体在界面处的自组装提供了一种自下而上的方法来创建用于开发下一代柔性光电器件和传感器的功能材料。在这项工作中，我们报告了限制在平坦界面上的胶体纳米晶体的简单模型的相图。通过执行广泛的计算机模拟，我们阐明了中尺度组织，它是随着不同参数的变化而发生的。我们的仿真结果揭示了丰富的相图，其中发现了六方相，菱形相，蜂窝相和条纹相以及分层自组装。我们的结果可以为实验者设计胶体纳米晶体排列以针对特定应用提供指导。