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能带宽决定着量子点的光电性能,由于量子限域效应,量子点的能带宽可以随粒子大小的改变而改变.然而,通过改变粒子大小来调控量子点的能带宽仍然存在一系列问题,如极小尺寸量子点的不稳定性、大尺寸结构对量子点-生物分子结合体功能的影响等.因此,近年来开发新技术用于量子点的能带宽调控具有重要的实际意义.本文综述了量子点能带宽调控相关领域的最新研究进展,包括合金量子点、核壳量子点以及掺杂量子点等,并对其研究趋向及应用进行了展望.
The energy bandwidth of a quantum dot determines the optoelectronic performance of a quantum dot. Due to the quantum confinement effect, the energy bandwidth of a quantum dot can change as the particle size changes. However, there are still some problems in regulating the energy bandwidth of a quantum dot by changing the particle size, The instability of small size quantum dots, the effect of large size structure on the function of quantum dots - biomolecule complexes, etc. Therefore, it is of great practical significance to develop new techniques for energy bandwidth control of quantum dots in recent years.In this paper, Recent developments in the field of quantum energy bandwidth control include quantum dots, core-shell quantum dots and doped quantum dots, and their research trends and applications are also forecasted.