field emission cathode

简明释义

场致发射阴极

英英释义

例句

1.The field emission cathode 场发射阴极 operates by emitting electrons when subjected to a strong electric field.

场发射阴极 field emission cathode在强电场作用下通过发射电子来工作。

2.Advancements in nanotechnology have led to the development of more effective field emission cathodes 场发射阴极.

纳米技术的进步导致了更有效的场发射阴极 field emission cathodes的开发。

3.The efficiency of the field emission cathode 场发射阴极 is crucial for achieving high-resolution imaging in scientific instruments.

对于在科学仪器中实现高分辨率成像，场发射阴极 field emission cathode的效率至关重要。

4.The new design of the field emission cathode 场发射阴极 has significantly improved the performance of the electron microscope.

新设计的场发射阴极 field emission cathode显著提高了电子显微镜的性能。

5.Researchers are exploring the use of field emission cathodes 场发射阴极 in flat panel displays to enhance image quality.

研究人员正在探索在平板显示器中使用场发射阴极 field emission cathodes以提高图像质量。

作文

The advancement of technology in various fields has led to the development of innovative devices that significantly enhance our daily lives. One such innovation is the field emission cathode, a crucial component in modern electron sources. The field emission cathode (场发射阴极) operates on the principle of quantum tunneling, which allows electrons to escape from a material when subjected to a strong electric field. This phenomenon is essential for applications in electron microscopy, flat-panel displays, and even in some types of vacuum tubes. The field emission cathode is typically made from materials like carbon nanotubes or other nanostructured materials, which exhibit excellent electron emission properties. These materials can produce a high density of emitted electrons, making them highly efficient compared to traditional thermionic emitters. The efficiency of a field emission cathode (场发射阴极) is not only determined by the material used but also by its geometric configuration and the applied electric field strength. One of the most significant advantages of using a field emission cathode is its low operating temperature. Unlike thermionic emitters that require high temperatures to function, field emission cathodes can operate at room temperature. This characteristic not only reduces energy consumption but also enhances the longevity of the device. Furthermore, the compact size of field emission cathodes allows for the miniaturization of electronic devices, paving the way for advancements in portable technology. In addition to their application in electron sources, field emission cathodes are also being explored in the field of nanotechnology. Researchers are investigating how these cathodes can be integrated into nanoscale devices, potentially leading to breakthroughs in quantum computing and advanced imaging techniques. The ability to control electron emission at such small scales opens up new possibilities for the design of next-generation electronic components. Despite the numerous advantages, there are still challenges associated with the widespread adoption of field emission cathodes. Issues such as stability, reproducibility, and the effects of environmental factors on performance need to be addressed. Ongoing research aims to overcome these hurdles by improving material properties and fabrication techniques. As scientists continue to explore the potential of field emission cathodes, we can expect to see more efficient, compact, and powerful electronic devices in the near future. In conclusion, the field emission cathode (场发射阴极) represents a significant leap forward in electron source technology. Its unique properties, including low operating temperature and high electron emission efficiency, make it an attractive choice for various applications. As research progresses, the integration of field emission cathodes into new technologies may revolutionize the way we interact with electronic devices, leading to a smarter and more efficient future.

随着各个领域技术的进步，创新设备的发展显著提升了我们的日常生活。其中一个创新就是场发射阴极，它是现代电子源中的关键组成部分。场发射阴极（field emission cathode）基于量子隧穿原理，当材料受到强电场作用时，电子能够从材料中逸出。这一现象在电子显微镜、平板显示器甚至某些类型的真空管等应用中至关重要。场发射阴极通常由碳纳米管或其他纳米结构材料制成，这些材料表现出优异的电子发射特性。这些材料能够产生高密度的发射电子，使其相比传统的热电子发射器具有更高的效率。场发射阴极（field emission cathode）的效率不仅取决于所用材料，还与其几何构型和施加的电场强度有关。使用场发射阴极的一个显著优势是其低工作温度。与需要高温才能工作的热电子发射器不同，场发射阴极可以在室温下运行。这一特性不仅降低了能耗，还增强了设备的寿命。此外，场发射阴极的紧凑尺寸使得电子设备的小型化成为可能，为便携式技术的进步铺平了道路。除了在电子源中的应用外，研究人员还在纳米技术领域探讨场发射阴极的潜在用途。研究人员正在研究如何将这些阴极集成到纳米级设备中，这可能导致量子计算和先进成像技术的突破。在如此小的尺度上控制电子发射的能力为下一代电子组件的设计开辟了新可能。尽管有许多优势，但场发射阴极的广泛应用仍面临挑战。稳定性、可重复性以及环境因素对性能的影响等问题需要解决。持续的研究旨在通过改善材料特性和制造技术来克服这些障碍。随着科学家们继续探索场发射阴极的潜力，我们可以期待在不久的将来看到更高效、更紧凑和更强大的电子设备。总之，场发射阴极（field emission cathode）代表了电子源技术的一次重大飞跃。其独特的特性，包括低工作温度和高电子发射效率，使其成为各种应用的理想选择。随着研究的进展，将场发射阴极集成到新技术中可能会彻底改变我们与电子设备的互动方式，带来一个更智能、更高效的未来。