hot carrier

简明释义

热载劣

英英释义

例句

1.The efficiency of solar cells can be improved by managing the hot carrier 热载流子 effects.

通过管理热载流子 hot carrier 效应，可以提高太阳能电池的效率。

2.In semiconductor physics, a hot carrier 热载流子 can lead to increased conductivity.

在半导体物理中，热载流子 hot carrier 可以导致导电性增加。

3.In high-speed electronics, controlling hot carriers 热载流子 is crucial for device reliability.

在高速电子设备中，控制热载流子 hot carrier 对于设备的可靠性至关重要。

4.Researchers are studying how hot carriers 热载流子 affect the performance of transistors.

研究人员正在研究热载流子 hot carrier 如何影响晶体管的性能。

5.The generation of hot carriers 热载流子 in a laser can enhance its output power.

激光中的热载流子 hot carrier 的产生可以增强其输出功率。

作文

In the realm of semiconductor physics, the term hot carrier refers to charge carriers that possess a higher energy than the thermal equilibrium of the lattice. These carriers can be electrons or holes that have gained significant kinetic energy due to external influences such as electric fields or light absorption. Understanding the behavior of hot carriers is crucial for the development of advanced electronic devices, particularly in the field of photonics and optoelectronics.When a semiconductor material absorbs photons from light, it can excite electrons from the valence band to the conduction band. This process creates hot carriers that have excess energy above the thermal level. The ability of these carriers to maintain their high energy is essential for various applications, including solar cells and photodetectors. In solar cells, for instance, the efficiency of converting sunlight into electrical energy heavily relies on the management of hot carriers. If these carriers lose their energy too quickly through scattering processes, the overall performance of the solar cell diminishes.Moreover, hot carriers can also play a significant role in the operation of transistors. In modern field-effect transistors (FETs), the speed at which the device can switch on and off is influenced by the presence of hot carriers. When a voltage is applied, these carriers can accelerate and contribute to a faster response time, enhancing the overall speed of digital circuits. However, this phenomenon can also lead to challenges, such as increased power dissipation and potential device degradation over time due to the high-energy collisions within the semiconductor material.The study of hot carriers extends beyond traditional semiconductors. Researchers are exploring materials like graphene and transition metal dichalcogenides, which exhibit unique properties that can enhance the generation and transport of hot carriers. These materials could pave the way for next-generation electronic devices that operate at higher speeds and efficiencies.In conclusion, the concept of hot carriers is integral to the advancement of semiconductor technology. As we continue to innovate and push the boundaries of electronic devices, understanding how to harness and control hot carriers will be key to achieving greater efficiency and performance. The future of electronics lies in our ability to manipulate these energetic carriers, making them a focal point of research and development in the field of materials science and engineering.

在半导体物理领域，术语hot carrier指的是具有比晶格热平衡更高能量的电荷载流子。这些载流子可以是电子或孔，它们由于外部影响（如电场或光吸收）而获得显著的动能。理解hot carriers的行为对先进电子设备的发展至关重要，特别是在光子学和光电学领域。当半导体材料吸收来自光的光子时，它可以激发电子从价带跃迁到导带。这个过程会产生具有超过热水平的多余能量的hot carriers。这些载流子保持其高能量的能力对于各种应用至关重要，包括太阳能电池和光探测器。例如，在太阳能电池中，将阳光转化为电能的效率在很大程度上依赖于hot carriers的管理。如果这些载流子通过散射过程过快地失去能量，太阳能电池的整体性能就会下降。此外，hot carriers还可以在晶体管的工作中发挥重要作用。在现代场效应晶体管（FET）中，设备开关的速度受到hot carriers存在的影响。当施加电压时，这些载流子可以加速并有助于更快的响应时间，从而提高数字电路的整体速度。然而，这种现象也可能带来挑战，例如由于半导体材料内高能碰撞导致的功耗增加和潜在的设备退化。对hot carriers的研究不仅限于传统半导体。研究人员正在探索石墨烯和过渡金属二硫化物等材料，这些材料表现出独特的特性，可以增强hot carriers的生成和传输。这些材料可能为下一代电子设备铺平道路，使其在更高的速度和效率下运行。总之，hot carriers的概念对半导体技术的进步至关重要。随着我们不断创新并推动电子设备的边界，理解如何利用和控制hot carriers将是实现更高效率和性能的关键。电子学的未来在于我们操控这些能量载流子的能力，使其成为材料科学和工程领域研究与开发的重点。