acceptor impurity

简明释义

1. 受伐杂质; 2. 受主杂质;

英英释义

例句

1.In semiconductor physics, an acceptor impurity is used to create p-type materials.

在半导体物理中，受体杂质用于制造p型材料。

2.The effectiveness of an acceptor impurity depends on its ionization energy.

受体杂质的有效性取决于其电离能。

3.When doping silicon with an acceptor impurity, the concentration of holes increases.

当用受体杂质掺杂硅时，空穴的浓度增加。

4.An acceptor impurity adds positive charge carriers to the material.

受体杂质为材料增加了正电荷载流子。

5.The introduction of an acceptor impurity like boron can significantly alter the electrical properties of silicon.

引入像硼这样的受体杂质可以显著改变硅的电气特性。

作文

In the field of semiconductor physics, the concept of acceptor impurity plays a crucial role in understanding the behavior of p-type materials. An acceptor impurity is a type of dopant that, when introduced into a semiconductor, creates holes in the crystal lattice by accepting electrons from the valence band. This process is fundamental in modifying the electrical properties of semiconductors, which are essential for various electronic devices. When we consider the structure of a pure semiconductor, such as silicon, it has four valence electrons, forming strong covalent bonds with neighboring atoms. However, when an acceptor impurity like boron is added to silicon, it introduces an atom with only three valence electrons. As a result, this boron atom cannot form complete covalent bonds with four neighboring silicon atoms. Consequently, it creates a 'hole' or absence of an electron in the lattice structure. This hole can be thought of as a positive charge carrier, allowing for the conduction of electricity. The introduction of acceptor impurities is a deliberate process in semiconductor fabrication, as it allows engineers to control the conductivity of materials. By adjusting the concentration of acceptor impurities, manufacturers can fine-tune the electrical properties of semiconductors to suit specific applications. For instance, in the production of p-n junctions, which are vital components in diodes and transistors, the careful balance between donor and acceptor impurities determines the efficiency and functionality of these devices.Moreover, the presence of acceptor impurities affects not only the conductivity but also other physical properties of the material, such as its optical characteristics and thermal stability. Understanding the interaction between acceptor impurities and the host semiconductor is essential for developing advanced materials that can meet the demands of modern technology, including solar cells, LEDs, and integrated circuits.In conclusion, acceptor impurities are indispensable in the realm of semiconductor technology. They facilitate the creation of p-type semiconductors, which are foundational to the operation of numerous electronic devices. As technology continues to evolve, the role of acceptor impurities will remain significant, driving innovations in electronic and optoelectronic applications. By mastering the principles surrounding acceptor impurities, one can gain a deeper appreciation for the complexities of semiconductor physics and its impact on the electronic world around us.

在半导体物理领域，接受者杂质的概念在理解p型材料的行为中起着至关重要的作用。接受者杂质是一种掺杂物，当它被引入半导体时，通过从价带中接受电子来在晶格中产生空穴。这个过程在改变半导体的电气特性方面是基础性的，这对各种电子设备至关重要。当我们考虑纯半导体的结构，例如硅时，它具有四个价电子，与邻近原子形成强共价键。然而，当像硼这样的接受者杂质被添加到硅中时，它引入了一个只有三个价电子的原子。因此，这个硼原子无法与四个邻近硅原子形成完整的共价键。结果，它在晶格结构中创造了一个“空穴”或缺失的电子。这个空穴可以被认为是一个正电荷载体，从而允许电流的导通。引入接受者杂质是半导体制造中一个有意的过程，因为它允许工程师控制材料的导电性。通过调整接受者杂质的浓度，制造商可以微调半导体的电气特性，以适应特定的应用。例如，在p-n结的生产中，p-n结是二极管和晶体管的重要组成部分，接受者杂质和施主杂质之间的精确平衡决定了这些设备的效率和功能。此外，接受者杂质的存在不仅影响导电性，还影响材料的其他物理特性，如光学特性和热稳定性。理解接受者杂质与宿主半导体之间的相互作用对于开发能够满足现代技术需求的先进材料至关重要，包括太阳能电池、LED和集成电路。总之，接受者杂质在半导体技术领域是不可或缺的。它们促进了p型半导体的创建，这些半导体是众多电子设备操作的基础。随着技术的不断发展，接受者杂质的角色将继续显著，推动电子和光电子应用的创新。通过掌握围绕接受者杂质的原则，人们可以更深入地理解半导体物理的复杂性及其对我们周围电子世界的影响。