carrier lifetime

简明释义

载劣寿命

英英释义

例句

1.To optimize the performance of LEDs, manufacturers must consider the carrier lifetime 载流子寿命 during the design phase.

为了优化LED的性能，制造商必须在设计阶段考虑载流子寿命 carrier lifetime。

2.Engineers are testing new materials that promise to increase the carrier lifetime 载流子寿命 in electronic devices.

工程师正在测试新材料，这些材料有望提高电子设备中的载流子寿命 carrier lifetime。

3.The study showed that temperature has a significant impact on the carrier lifetime 载流子寿命 of the material.

研究表明，温度对材料的载流子寿命 carrier lifetime有显著影响。

4.A longer carrier lifetime 载流子寿命 can lead to better efficiency in solar cells.

更长的载流子寿命 carrier lifetime可以提高太阳能电池的效率。

5.The research focused on improving the carrier lifetime 载流子寿命 in semiconductor materials to enhance device performance.

这项研究集中在提高半导体材料中的载流子寿命 carrier lifetime，以增强器件性能。

作文

In the field of semiconductor physics, the concept of carrier lifetime plays a pivotal role in determining the efficiency and performance of electronic devices. The term carrier lifetime refers to the average time that charge carriers, such as electrons and holes, exist before they recombine. This phenomenon is crucial for understanding how materials behave under different conditions, particularly in semiconductors used in modern electronics. To grasp the significance of carrier lifetime, one must first understand what charge carriers are. In semiconductors, electrons can move freely when energy is supplied, creating a flow of electric current. However, these electrons don’t last indefinitely; they eventually recombine with holes, which are the absence of electrons. The duration of this existence is what we refer to as carrier lifetime. The carrier lifetime is influenced by various factors, including temperature, material purity, and the presence of defects within the semiconductor structure. For instance, higher temperatures can increase the energy of charge carriers, leading to a shorter carrier lifetime due to increased recombination rates. Conversely, a pure semiconductor with fewer defects tends to have a longer carrier lifetime, which is desirable for high-performance applications. Understanding carrier lifetime is crucial for designing efficient photovoltaic cells, transistors, and other electronic components. In solar panels, for example, a longer carrier lifetime allows for more effective conversion of sunlight into electricity. When photons strike the solar cell, they excite electrons, creating electron-hole pairs. If the carrier lifetime is long enough, these pairs can be collected before recombining, thus enhancing the overall efficiency of the solar cell. Moreover, in the realm of optoelectronics, where light emission and detection are key, the carrier lifetime directly affects the performance of devices such as light-emitting diodes (LEDs) and laser diodes. A well-optimized carrier lifetime ensures that the emitted light is consistent and of high quality, which is essential for applications ranging from displays to communication technologies. In conclusion, the concept of carrier lifetime is fundamental in the study and application of semiconductor physics. It not only influences the performance of electronic devices but also impacts the development of new technologies that rely on efficient charge carrier management. As researchers continue to explore materials and methods to enhance carrier lifetime, we can expect advancements that will lead to more efficient and powerful electronic devices. Understanding and optimizing carrier lifetime is, therefore, a crucial step in the ongoing evolution of technology.

在半导体物理学领域，载流子寿命的概念在确定电子设备的效率和性能方面起着关键作用。术语载流子寿命指的是电荷载流子（如电子和空穴）在重新结合之前存在的平均时间。这一现象对于理解材料在不同条件下的行为至关重要，尤其是在现代电子产品中使用的半导体。要理解载流子寿命的重要性，首先必须了解电荷载流子是什么。在半导体中，当提供能量时，电子可以自由移动，形成电流。然而，这些电子并不是无限存在的；它们最终会与空穴重新结合，而空穴是电子的缺失。这个存在的持续时间就是我们所称的载流子寿命。载流子寿命受多种因素的影响，包括温度、材料纯度和半导体结构中的缺陷存在。例如，较高的温度可以增加电荷载流子的能量，导致由于复合速率增加而缩短载流子寿命。相反，具有较少缺陷的纯半导体往往具有更长的载流子寿命，这对于高性能应用是可取的。理解载流子寿命对于设计高效的光伏电池、晶体管和其他电子元件至关重要。例如，在太阳能电池中，更长的载流子寿命能够更有效地将阳光转化为电能。当光子撞击太阳能电池时，它们激发电子，产生电子-空穴对。如果载流子寿命足够长，这些对可以在重新结合之前被收集，从而提高太阳能电池的整体效率。此外，在光电子学领域，光的发射和检测是关键，载流子寿命直接影响LED和激光二极管等设备的性能。经过优化的载流子寿命确保发出的光是一致且高质量的，这对于从显示器到通信技术的应用至关重要。总之，载流子寿命的概念在半导体物理学的研究和应用中是基础性的。它不仅影响电子设备的性能，还影响依赖于高效电荷载流子管理的新技术的发展。随着研究人员继续探索增强载流子寿命的材料和方法，我们可以期待推动更多高效强大的电子设备的进步。因此，理解和优化载流子寿命是技术不断演变的重要一步。