Colloidal quantum dots (QDs) are nanosized semiconductors whose electronic features are dictated by the quantum confinement effect. The optical, electrical, and chemical properties of QDs are influenced by their dimensions and surface landscape. The surface of II–VI and IV–VI QDs has been extensively explored; however, in-depth investigations on the surface of III–V QDs are still lagging behind. This Perspective discusses the current understanding of the surface of III–V QDs, outlines deep trap states presented by surface defects, and suggests strategies to overcome challenges associated with deep traps. Lastly, we discuss a route to create well-defined facets in III–V QDs by providing a platform for surface studies and a recently reported approach in atomistic understanding of covalent III–V QD surfaces using the electron counting model with fractional dangling bonds.

中文翻译：

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III–V胶体纳米晶体：共价表面的控制

胶体量子点（QDs）是纳米尺寸的半导体，其电子特征受量子约束效应支配。量子点的光学，电学和化学性质受其尺寸和表面轮廓的影响。II-VI和IV-VI QD的表面已被广泛研究。但是，对III–V量子点表面的深入研究仍然落后。本“观点”讨论了对III–V QD表面的当前理解，概述了表面缺陷所呈现的深陷阱状态，并提出了克服与深陷阱相关的挑战的策略。最后，