carrier generation

简明释义

载劣生成

英英释义

例句

1.In solar cells, efficient carrier generation 载流子生成 leads to higher energy conversion rates.

在太阳能电池中，高效的载流子生成可以提高能量转换效率。

2.Researchers are studying the effects of temperature on carrier generation 载流子生成 in organic materials.

研究人员正在研究温度对有机材料中载流子生成的影响。

3.When light strikes a semiconductor, it initiates carrier generation 载流子生成 that allows current to flow.

当光照射到半导体时，它会启动载流子生成，使电流得以流动。

4.The efficiency of a photodetector largely depends on the carrier generation 载流子生成 process.

光电探测器的效率在很大程度上依赖于载流子生成过程。

5.The process of carrier generation 载流子生成 in semiconductors is crucial for their functionality.

半导体中载流子生成的过程对于它们的功能至关重要。

作文

In the field of semiconductor physics, the term carrier generation refers to the process through which charge carriers, such as electrons and holes, are created in a material. This phenomenon is crucial for the functioning of various electronic devices, including diodes, transistors, and solar cells. Understanding carrier generation is essential for engineers and scientists who work on improving the efficiency and performance of these devices.The process of carrier generation can occur through various mechanisms, including thermal excitation, photon absorption, and impact ionization. Thermal excitation involves the increase of temperature, which provides enough energy to electrons in a semiconductor to jump from the valence band to the conduction band, thus creating free charge carriers. In contrast, photon absorption occurs when a photon with sufficient energy strikes the semiconductor, transferring energy to an electron and promoting it to the conduction band.Impact ionization is another mechanism where a high-energy electron collides with a bound electron, knocking it loose and creating additional charge carriers. This process is particularly significant in avalanche photodiodes and certain types of transistors, where a small input signal can lead to a large output due to the multiplication of charge carriers.The efficiency of carrier generation directly impacts the performance of electronic devices. For instance, in solar cells, the ability to generate carriers efficiently from sunlight determines how much electrical energy can be harvested. Researchers constantly seek ways to enhance this process, exploring new materials and structures that can maximize carrier generation while minimizing recombination losses, where generated carriers recombine before contributing to the current.Moreover, understanding the dynamics of carrier generation is vital for modeling the behavior of semiconductor devices under different operating conditions. Factors such as temperature, light intensity, and material composition can significantly influence the rate of carrier generation and, consequently, the overall device performance.In conclusion, carrier generation is a fundamental concept in semiconductor physics that plays a critical role in the operation of electronic devices. By mastering this concept, engineers and researchers can develop more efficient technologies that harness the power of electricity and light, paving the way for advancements in renewable energy, telecommunications, and computing. The ongoing research in this area continues to yield innovative solutions that enhance our daily lives and contribute to a more sustainable future.中文释义：载流子生成是指在材料中产生电荷载流子的过程，这些载流子可以是电子或空穴。