recombination center

简明释义

复合中心

英英释义

例句

1.In molecular biology, the recombination center is essential for DNA repair mechanisms.

在分子生物学中，重组中心对DNA修复机制至关重要。

2.The recombination center plays a crucial role in genetic diversity.

这个重组中心在遗传多样性中起着关键作用。

3.During meiosis, the recombination center facilitates genetic exchange between homologous chromosomes.

在减数分裂过程中，重组中心促进同源染色体之间的遗传交换。

4.The presence of a recombination center can influence the evolution of species.

一个重组中心的存在可以影响物种的进化。

5.Researchers are studying the recombination center to enhance crop resistance.

研究人员正在研究这个重组中心以增强作物的抗性。

作文

In the field of semiconductor physics, the term recombination center refers to a defect or impurity in a semiconductor material that facilitates the recombination of charge carriers, specifically electrons and holes. These centers play a crucial role in determining the electrical properties of semiconductors, which are essential components in modern electronic devices. Understanding the function and impact of recombination centers is vital for engineers and scientists who work on improving the efficiency of solar cells, transistors, and diodes.When a semiconductor is doped with impurities, these foreign atoms can create energy levels within the bandgap, which is the energy range between the valence band and the conduction band. The presence of a recombination center can trap charge carriers, leading to a decrease in the number of free electrons and holes available for conduction. This trapping mechanism can significantly affect the performance of semiconductor devices.For instance, in solar cells, the efficiency of converting sunlight into electrical energy can be hindered by the presence of recombination centers. When photons strike the solar cell, they generate electron-hole pairs. However, if these pairs encounter a recombination center, they may recombine before contributing to the electric current, thereby reducing the overall efficiency of the solar cell. Researchers are continuously exploring ways to minimize the impact of these centers, such as optimizing the doping process and using passivation techniques to reduce defects.Moreover, recombination centers are not only detrimental; they can also be engineered to enhance certain properties of semiconductor materials. For example, in some applications, controlled introduction of recombination centers can help in achieving desired levels of conductivity or in creating specific optical properties. This dual nature of recombination centers highlights the complexity of semiconductor physics and the need for a deep understanding of material properties.In conclusion, the concept of recombination centers is fundamental to the study and application of semiconductor technology. By grasping how these centers operate and influence the behavior of charge carriers, scientists and engineers can develop more efficient electronic devices and improve existing technologies. As the demand for advanced electronics continues to grow, the importance of understanding recombination centers will only increase, driving further research and innovation in the field of semiconductor physics.

在半导体物理学领域，术语recombination center指的是半导体材料中的缺陷或杂质，这些缺陷或杂质促进电荷载流子的复合，特别是电子和空穴。这些中心在确定半导体的电气特性方面起着至关重要的作用，而半导体又是现代电子设备的基本组成部分。理解recombination centers的功能和影响对于从事提高太阳能电池、晶体管和二极管效率的工程师和科学家来说至关重要。当半导体被掺杂杂质时，这些外来原子可以在带隙内创建能级，带隙是价带和导带之间的能量范围。recombination center的存在可以捕获电荷载流子，导致可用于导电的自由电子和空穴数量减少。这种捕获机制会显著影响半导体器件的性能。例如，在太阳能电池中，将阳光转化为电能的效率可能会因recombination centers的存在而受到阻碍。当光子击中太阳能电池时，它们会产生电子-空穴对。然而，如果这些对遇到recombination center，它们可能会在贡献电流之前复合，从而降低太阳能电池的整体效率。研究人员不断探索减少这些中心影响的方法，例如优化掺杂过程和使用钝化技术以减少缺陷。此外，recombination centers不仅是有害的；它们也可以被工程化以增强半导体材料的某些特性。例如，在某些应用中，受控引入recombination centers可以帮助实现所需的导电性或创造特定的光学特性。这种recombination centers的双重性质突显了半导体物理的复杂性以及对材料特性深入理解的必要性。总之，recombination centers的概念是半导体技术研究和应用的基础。通过掌握这些中心的运作方式及其对电荷载流子行为的影响，科学家和工程师可以开发出更高效的电子设备并改善现有技术。随着对先进电子产品需求的不断增长，理解recombination centers的重要性只会增加，推动半导体物理领域的进一步研究和创新。