residual photoconductance

简明释义

残留光电导

英英释义

例句

1.The study found that the residual photoconductance 残余光导电性 in the material increased after prolonged exposure to light.

研究发现，材料的残余光导电性在长时间光照后增加。

2.The residual photoconductance 残余光导电性 can affect the performance of photovoltaic cells significantly.

在光伏电池中，残余光导电性会显著影响其性能。

3.Engineers are investigating the residual photoconductance 残余光导电性 of the semiconductor under varying temperatures.

工程师正在研究半导体在不同温度下的残余光导电性。

4.To improve efficiency, researchers aim to minimize the residual photoconductance 残余光导电性 in organic materials.

为了提高效率，研究人员旨在最小化有机材料中的残余光导电性。

5.Measurements showed that the residual photoconductance 残余光导电性 was higher in samples treated with UV light.

测量显示，经过紫外光处理的样品中残余光导电性较高。

作文

In the field of materials science and semiconductor physics, the term residual photoconductance refers to a phenomenon where a material retains its electrical conductivity after the removal of an external light source. This property is particularly important in understanding how certain materials behave under illumination and can have significant implications for their applications in electronic devices. The study of residual photoconductance is crucial for developing advanced photodetectors, solar cells, and other optoelectronic devices that rely on the interaction between light and electrical properties of materials.When light shines on a semiconductor, it can excite electrons from the valence band to the conduction band, creating electron-hole pairs. Normally, when the light source is turned off, these electron-hole pairs recombine, and the conductivity returns to its original state. However, in materials exhibiting residual photoconductance, some of these charge carriers remain mobile even after the light is removed. This residual effect can be attributed to various factors such as defects in the crystal lattice, impurities, or specific energy states within the bandgap that trap charge carriers temporarily.Understanding the mechanisms behind residual photoconductance allows researchers to optimize materials for specific applications. For instance, in photovoltaic cells, maximizing the duration of residual conductivity can lead to improved efficiency by allowing more time for charge carriers to contribute to the electric current before recombination occurs. Similarly, in photodetectors, materials with high residual photoconductance can enhance sensitivity and response time, making them more effective in detecting low levels of light.Moreover, the study of residual photoconductance extends beyond traditional semiconductors. Emerging materials such as perovskites and transition metal dichalcogenides (TMDs) have shown promising results in this area. Researchers are exploring how these materials can be engineered to exhibit enhanced residual photoconductance, potentially leading to breakthroughs in next-generation electronic devices.In practical applications, measuring residual photoconductance often involves sophisticated techniques such as time-resolved spectroscopy or transient photoconductivity measurements. These methods allow scientists to observe how long the conductivity remains elevated after the light source is switched off and to analyze the decay dynamics of the residual conductivity. Such experiments provide valuable insights into the material properties and guide the development of new technologies.In conclusion, residual photoconductance is a key concept in materials science that has far-reaching implications for the development of advanced electronic devices. By studying this phenomenon, researchers can unlock new potential in semiconductors and other materials, paving the way for innovations in energy conversion and optoelectronics. As technology progresses, understanding and harnessing residual photoconductance will be essential for driving advancements in various fields, including renewable energy, telecommunications, and sensor technologies.

在材料科学和半导体物理领域，术语残余光导电性指的是一种现象，即材料在移除外部光源后仍然保持其电导率。这一特性在理解某些材料在照明下的行为方面尤为重要，并且对它们在电子设备中的应用具有重要意义。研究残余光导电性对于开发先进的光电探测器、太阳能电池和其他依赖光与材料电气特性的相互作用的光电子设备至关重要。当光照射在半导体上时，它可以激发电子从价带跃迁到导带，产生电子-空穴对。通常，当光源关闭时，这些电子-空穴对会复合，电导率恢复到原始状态。然而，在表现出残余光导电性的材料中，即使在光被移除后，一些电荷载流子仍然保持活动。这种残余效应可能归因于晶格中的缺陷、杂质或带隙内的特定能级，这些能级暂时捕获电荷载流子。理解残余光导电性背后的机制使研究人员能够优化材料以适应特定应用。例如，在光伏电池中，最大化残余电导率的持续时间可以通过允许更多的时间让电荷载流子贡献电流，从而提高效率。同样，在光电探测器中，具有高残余光导电性的材料可以增强灵敏度和响应时间，使其在检测低光水平方面更有效。此外，残余光导电性的研究超越了传统半导体。新兴材料如钙钛矿和过渡金属二硫化物（TMDs）在这一领域显示出良好的结果。研究人员正在探索如何工程这些材料以展现增强的残余光导电性，这可能导致下一代电子设备的突破。在实际应用中，测量残余光导电性通常涉及复杂的技术，如时间分辨光谱或瞬态光导电测量。这些方法允许科学家观察光源关闭后电导率保持升高的时间，以及残余电导率的衰减动态。这类实验提供了宝贵的材料特性洞察，并指导新技术的发展。总之，残余光导电性是材料科学中的一个关键概念，对先进电子设备的发展具有深远的影响。通过研究这一现象，研究人员可以解锁半导体和其他材料的新潜力，为能源转换和光电子学的创新铺平道路。随着技术的进步，理解和利用残余光导电性将对推动各个领域的进步至关重要，包括可再生能源、电信和传感器技术。