The smallest unit that supports electron flow in a semiconductor material; a hole in P-type silicon or a free electron in N-type silicon. 在半导体材料中维持电流的最小单元,在P型硅中是空穴,在N型硅中是自由电子。
Semiconductor Quantum Dots ( QDs) can be seen as the zero-dimensional structures in which quantum confinement of electron and hole in all three dimensions leads to a tunability of the electronic and optical properties by simply changing the crystal size. 半导体量子点可以看做是一种零维的结构,由于其中的电子和空穴在三维空间范围受到强的量子限制效应,因而可以通过简单地改变量子点的尺寸来调节其电学和光学特性。
Diamond has many advantages compared with other semiconductor materials, such as low dielectric constant, high band gap, good electron hole mobility, high thermal conductivity and optical properties. 金刚石作为宽禁带半导体材料与其它材料相比,具有非常低的介电常数,很高的禁带宽度和极高的热导率及优良的光学性质。
On the other hand, the conventional Si semiconductor will be incapable for further higher-degree integrated circuit because its hole mobility is much lower than its electron mobility. So it is necessary to find another new semiconductor material. 另一方面,由于硅中空穴迁移率远低于电子迁移率,传统的硅半导体衬底也逐渐不能满足集成电路(IC)更高集成度的要求,寻找新型的半导体衬底也是大势所趋。