半导体量子点结构的特性及力学研究进展

量子点结构具有独特而优异的光学和电学等性能, 是当前国际研究的热点问题之一. 量子点异质结构中的弹性场会对量子点结构的制备、加工及其光学和电学等物理性能产生重 要影响. 本文以此为背景, 从低维量子限制系统所遵循的量子力学规律及其特点、半导体量 子点的物理性能及表征、半导体量子点制备技术等方面较为全面地介绍半导体量子点结构的 研究进展, 并着重介绍在半导体量子点结构的力学研究方面以及力学性能与物理性能耦合研 究等方面的一些研究结果.

ADVANCES IN THE STUDY OF PROPERTIES AND MECHANICS OF SEMICONDUCTOR QUANTUM DOT STRUCTURES

Considerable experimental and theoretical studies have been carried out in semiconductor quantum dots(QDs)in recent years,since quantum-dot devices offer a bright prospect of improved electronic and optical properties due to the zero-dimensional quantum confinement of carriers.The elastic field is essential for the analyses of the physical and mechanical properties of QDs.In this article,the elements of the low-dimensional quantum confined systems,the physical properties and the fabrication techniques of the QDs are reviewed systematically.In particular,the researches on mechanics of the semiconductor QD structures,and the coupling between the elastic field and the physical properties are discussed.