low energy gap

简明释义

窄禁带

英英释义

例句

1.The low energy gap of this compound makes it suitable for optoelectronic applications.

该化合物的低能量间隙使其适合用于光电子应用。

2.A low energy gap can result in higher absorption of light in photonic devices.

在光子设备中，低能量间隙可以导致更高的光吸收。

3.The material exhibits a low energy gap which allows for efficient charge transport.

该材料表现出一个低能量间隙，这使得电荷传输效率高。

4.In semiconductors, a low energy gap can lead to increased conductivity at room temperature.

在半导体中，低能量间隙可能导致室温下导电性增强。

5.Researchers are studying materials with a low energy gap for use in solar cells.

研究人员正在研究具有低能量间隙的材料，以用于太阳能电池。

作文

In the realm of physics and materials science, the concept of a low energy gap plays a crucial role in understanding the electronic properties of materials. The term refers to the small energy difference between the valence band and the conduction band of a semiconductor or insulator. This energy gap is significant because it determines how easily electrons can be excited from the valence band to the conduction band, thereby influencing the material's conductivity and optical properties.Materials with a low energy gap are often semiconductors, which means they can conduct electricity under certain conditions. For instance, silicon, one of the most widely used semiconductors in electronics, has a moderate energy gap that allows it to function effectively in various applications. However, when the energy gap is too low, it can lead to undesirable characteristics, such as increased thermal noise and reduced efficiency in electronic devices.The implications of a low energy gap extend beyond just electrical conductivity. In the field of photovoltaics, for example, materials with a suitable energy gap are essential for converting sunlight into electricity efficiently. If the energy gap is too low, the material may absorb too much light, leading to excessive heat generation rather than effective energy conversion. Conversely, if the energy gap is too high, the material may not be able to absorb enough light to generate a significant amount of electricity.Research into materials with a low energy gap has gained momentum as scientists seek to develop new technologies for energy production and storage. For instance, organic photovoltaics often utilize materials with a low energy gap to enhance light absorption and improve overall efficiency. These materials can be engineered at the molecular level to achieve the desired electronic properties, making them a promising avenue for future solar cell technology.Moreover, the study of low energy gap materials is not limited to photovoltaics. In the realm of thermoelectrics, materials with a low energy gap can facilitate the conversion of temperature differences into electrical voltage, thus enabling efficient waste heat recovery. This application is particularly relevant in industrial settings where excess heat is generated but often wasted.In conclusion, the concept of a low energy gap is a fundamental aspect of modern materials science and technology. Understanding and manipulating this property allows researchers and engineers to design better electronic devices, improve energy efficiency, and develop innovative solutions for renewable energy production. As we continue to explore the potential of materials with a low energy gap, we move closer to achieving sustainable technological advancements that can significantly impact our society and environment.

在物理学和材料科学领域，低能隙的概念在理解材料的电子特性方面起着至关重要的作用。该术语指的是半导体或绝缘体的价带与导带之间的小能量差。这一能量差是重要的，因为它决定了电子从价带激发到导带的容易程度，从而影响材料的导电性和光学特性。具有低能隙的材料通常是半导体，这意味着它们在某些条件下能够导电。例如，硅是电子产品中最广泛使用的半导体之一，它具有适中的能量间隙，使其在各种应用中有效。然而，当能量间隙过低时，可能会导致不良特性，例如增加热噪声和降低电子设备的效率。低能隙的影响不仅限于电导率。在光伏领域，例如，具有适当能量间隙的材料对于有效地将阳光转化为电能至关重要。如果能量间隙过低，材料可能会吸收过多的光，导致过多的热量产生，而不是有效的能量转化。相反，如果能量间隙过高，材料可能无法吸收足够的光以产生显著的电能。随着科学家们寻求开发新技术以进行能源生产和储存，研究具有低能隙的材料的工作正在加速。例如，有机光伏材料通常利用具有低能隙的材料来增强光吸收并提高整体效率。这些材料可以在分子层面上进行工程设计，以实现所需的电子特性，使它们成为未来太阳能电池技术的有前景的途径。此外，低能隙材料的研究不仅限于光伏。在热电学领域，具有低能隙的材料可以促进温差转化为电压，从而实现高效的废热回收。这种应用在工业环境中特别相关，因为在这些环境中经常会产生多余的热量，但往往被浪费。总之，低能隙的概念是现代材料科学和技术的一个基本方面。理解和操控这一特性使研究人员和工程师能够设计更好的电子设备，提高能源效率，并开发可再生能源生产的创新解决方案。随着我们继续探索具有低能隙材料的潜力，我们将更接近实现可持续的技术进步，这将对我们的社会和环境产生重大影响。