abrupt heterojunction

简明释义

突变异质结

英英释义

例句

1.Researchers found that the abrupt heterojunction 突变异质结 in semiconductor devices enhances charge carrier mobility.

研究人员发现，半导体器件中的突变异质结能够增强载流子的迁移率。

2.In this experiment, we will analyze the effects of an abrupt heterojunction 突变异质结 on electronic properties.

在这个实验中，我们将分析突变异质结对电子性质的影响。

3.The abrupt heterojunction 突变异质结 plays a crucial role in determining the efficiency of light-emitting diodes.

在决定发光二极管效率方面，突变异质结起着至关重要的作用。

4.The fabrication of abrupt heterojunction 突变异质结 transistors has led to advancements in high-speed electronics.

制造突变异质结晶体管促进了高速电子学的发展。

5.The performance of solar cells can be significantly improved by incorporating an abrupt heterojunction 突变异质结 design.

通过采用突变异质结设计，太阳能电池的性能可以显著提高。

作文

The concept of an abrupt heterojunction is fundamental in the field of semiconductor physics and electronic engineering. A heterojunction is formed when two different semiconductor materials come into contact, creating a junction that has distinct electronic properties compared to the individual materials. The term 'abrupt' refers to the sharp transition between these two materials, meaning that there is little to no gradual change in composition at the interface. This sharpness is crucial because it affects how charge carriers, such as electrons and holes, behave at the junction.In practical applications, abrupt heterojunctions are particularly significant in the design of high-performance electronic devices, including transistors, lasers, and solar cells. For instance, in a solar cell, the efficiency of light absorption and charge separation can be greatly enhanced by using an abrupt heterojunction. The abrupt nature of the junction allows for better confinement of charge carriers, leading to improved performance and efficiency.One of the key advantages of an abrupt heterojunction is its ability to create a strong electric field at the interface. This electric field plays a vital role in separating electron-hole pairs generated by incident light or electrical excitation. When light hits the solar cell, it generates electron-hole pairs in the semiconductor material. An abrupt heterojunction ensures that these pairs are quickly separated, preventing recombination and allowing for more efficient energy conversion.Moreover, the fabrication of abrupt heterojunctions has advanced significantly with modern techniques such as molecular beam epitaxy (MBE) and metal-organic chemical vapor deposition (MOCVD). These methods allow for precise control over the thickness and composition of the layers, resulting in high-quality interfaces that exhibit the desired abrupt characteristics. As a result, researchers and engineers can tailor the electronic properties of devices to meet specific performance criteria.However, the design and implementation of abrupt heterojunctions are not without challenges. One major issue is the potential for defects at the interface, which can adversely affect the electronic properties of the junction. Defects can lead to increased recombination rates of charge carriers, thereby reducing the overall efficiency of the device. Therefore, ongoing research is focused on understanding and mitigating these defects to ensure the reliability and performance of devices utilizing abrupt heterojunctions.In conclusion, the abrupt heterojunction is a critical component in modern electronic and optoelectronic devices. Its sharp transition between different semiconductor materials enables enhanced performance and efficiency, making it a focal point for innovation in technology. As research progresses, the potential applications of abrupt heterojunctions will likely expand, paving the way for more advanced and efficient electronic devices that can meet the demands of the future.

‘abrupt heterojunction’这一概念在半导体物理和电子工程领域中至关重要。当两种不同的半导体材料接触时，就会形成异质结，这种结具有与单独材料不同的电子特性。术语“abrupt”指的是这两种材料之间的急剧过渡，意味着在界面处几乎没有渐变。这种急剧性是至关重要的，因为它影响了电荷载流子（如电子和空穴）在结处的行为。在实际应用中，‘abrupt heterojunction’在高性能电子设备的设计中尤其重要，包括晶体管、激光器和太阳能电池。例如，在太阳能电池中，通过使用‘abrupt heterojunction’可以大大提高光吸收和电荷分离的效率。结的急剧性允许更好地限制电荷载流子，从而提高性能和效率。‘abrupt heterojunction’的一个主要优点是能够在界面处产生强电场。这个电场在分离由入射光或电激发产生的电子-空穴对方面起着至关重要的作用。当光照射到太阳能电池时，它会在半导体材料中生成电子-空穴对。‘abrupt heterojunction’确保这些对被迅速分离，防止重组，从而允许更高效的能量转换。此外，现代技术（如分子束外延（MBE）和金属有机化学气相沉积（MOCVD））的进步使得‘abrupt heterojunction’的制造显著提高。这些方法允许精确控制层的厚度和成分，从而产生具有所需急剧特性的高质量界面。因此，研究人员和工程师可以根据特定性能标准调整设备的电子特性。然而，‘abrupt heterojunction’的设计和实施并非没有挑战。一个主要问题是界面处可能存在缺陷，这会对结的电子特性产生不利影响。缺陷可能导致电荷载流子的重组率增加，从而降低设备的整体效率。因此，持续的研究集中在理解和减轻这些缺陷，以确保利用‘abrupt heterojunction’的设备的可靠性和性能。总之，‘abrupt heterojunction’是现代电子和光电设备中的关键组成部分。其不同半导体材料之间的急剧过渡使得性能和效率得以增强，使其成为技术创新的焦点。随着研究的进展，‘abrupt heterojunction’的潜在应用可能会扩展，为满足未来需求的更先进、更高效的电子设备铺平道路。