absorption by lattice imperfection

简明释义

晶格不规则性吸收;

英英释义

例句

1.The study of absorption by lattice imperfection reveals how defects in crystal structures can influence material properties.

对晶格缺陷引起的吸收的研究揭示了晶体结构中的缺陷如何影响材料特性。

2.The phenomenon of absorption by lattice imperfection can lead to unexpected behaviors in optical materials.

晶格缺陷引起的吸收现象可能导致光学材料出现意想不到的行为。

3.Researchers are investigating the effects of absorption by lattice imperfection on the thermal conductivity of metals.

研究人员正在调查晶格缺陷引起的吸收对金属热导率的影响。

4.In semiconductors, absorption by lattice imperfection plays a crucial role in determining their electrical conductivity.

在半导体中，晶格缺陷引起的吸收在决定其电导率方面起着关键作用。

5.Understanding absorption by lattice imperfection is essential for improving the performance of photovoltaic cells.

理解晶格缺陷引起的吸收对提高光伏电池性能至关重要。

作文

The study of materials science has revealed numerous phenomena that govern the behavior of materials under various conditions. One such phenomenon is the concept of absorption by lattice imperfection, which plays a crucial role in understanding how materials interact with different forms of energy, such as light and heat. In essence, absorption by lattice imperfection refers to the way in which defects within a crystalline structure can absorb energy, leading to changes in the material's properties. This concept is particularly significant when considering how impurities or irregularities in a crystal lattice can affect its overall performance.To comprehend absorption by lattice imperfection, it is essential to first understand what a lattice is. A lattice is a regular arrangement of atoms in a crystalline solid. However, in real-world materials, these lattices are rarely perfect. They often contain imperfections, such as vacancies (missing atoms), interstitials (extra atoms placed in between the regular atomic sites), or substitutional defects (where one type of atom is replaced by another). These imperfections can significantly influence the way a material behaves under external stimuli.For instance, when light interacts with a material, it can be absorbed, reflected, or transmitted. The presence of lattice imperfections can enhance the absorption of light as these defects create localized states within the band structure of the material. This means that certain wavelengths of light may be preferentially absorbed due to the energy levels associated with these defects. Consequently, materials with higher concentrations of imperfections may exhibit unique optical properties, making them suitable for applications in photonics and optoelectronics.Moreover, absorption by lattice imperfection is not limited to optical phenomena; it also plays a significant role in thermal conductivity. Defects in a lattice can scatter phonons, which are the primary carriers of heat in non-metallic solids. As a result, materials with a high density of lattice imperfections often demonstrate lower thermal conductivity. This property is particularly valuable in applications where thermal insulation is required, such as in building materials or thermal barriers in electronic devices.In the field of semiconductor technology, absorption by lattice imperfection is a critical factor in determining the efficiency of devices. Semiconductor materials are often doped with impurities to modify their electrical properties. The introduction of these dopants creates additional lattice imperfections, which can lead to increased absorption of charge carriers, thereby affecting the material's conductivity. Understanding how these imperfections influence absorption processes is vital for the design of more efficient semiconductors.In conclusion, the phenomenon of absorption by lattice imperfection highlights the intricate relationship between material structure and its functional properties. By studying how defects within a lattice can absorb energy, researchers can develop new materials with tailored properties for a wide range of applications. From enhancing optical performance to improving thermal insulation and semiconductor efficiency, the implications of absorption by lattice imperfection are vast and hold great promise for future technological advancements.

材料科学的研究揭示了许多现象，这些现象支配着材料在各种条件下的行为。其中一个现象是晶格缺陷的吸收这一概念，它在理解材料如何与光和热等不同形式的能量相互作用方面起着至关重要的作用。简单来说，晶格缺陷的吸收是指晶体结构中的缺陷如何吸收能量，从而导致材料性质的变化。这个概念在考虑晶格中的杂质或不规则性如何影响材料整体性能时尤为重要。为了理解晶格缺陷的吸收，首先必须了解什么是晶格。晶格是晶体固体中原子的规则排列。然而，在现实世界的材料中，这些晶格很少是完美的。它们通常包含缺陷，例如空位（缺失的原子）、间隙（放置在常规原子位置之间的额外原子）或取代缺陷（一种类型的原子被另一种原子替代）。这些缺陷会显著影响材料在外部刺激下的行为。例如，当光与材料相互作用时，它可以被吸收、反射或透过。晶格缺陷的存在可以增强光的吸收，因为这些缺陷在材料的能带结构中创建了局部态。这意味着某些波长的光可能由于与这些缺陷相关的能级而被优先吸收。因此，具有较高浓度缺陷的材料可能表现出独特的光学特性，使其适合用于光子学和光电电子学应用。此外，晶格缺陷的吸收不仅限于光学现象；它在热导率中也起着重要作用。晶格中的缺陷可以散射声子，声子是非金属固体中热量的主要载体。因此，具有高密度晶格缺陷的材料通常表现出较低的热导率。这一特性在需要热绝缘的应用中尤其有价值，例如建筑材料或电子设备中的热障。在半导体技术领域，晶格缺陷的吸收是决定器件效率的关键因素。半导体材料通常通过掺杂杂质来改变其电学性质。这些掺杂剂的引入会产生额外的晶格缺陷，这可能导致载流子的吸收增加，从而影响材料的导电性。理解这些缺陷如何影响吸收过程对于设计更高效的半导体至关重要。总之，晶格缺陷的吸收现象突显了材料结构与其功能属性之间的复杂关系。通过研究晶格中的缺陷如何吸收能量，研究人员可以开发出具有定制属性的新材料，适用于广泛的应用。从增强光学性能到改善热绝缘和半导体效率，晶格缺陷的吸收的影响是广泛的，并对未来的技术进步充满希望。