nonradiative transition

简明释义

无辐射跃迁

英英释义

例句

1.Understanding nonradiative transition 非辐射跃迁 is crucial for improving the performance of solar cells.

理解非辐射跃迁 nonradiative transition对于提高太阳能电池的性能至关重要。

2.In many photonic devices, the efficiency is often limited by the rate of nonradiative transition 非辐射跃迁 occurring within the materials.

在许多光子设备中，效率往往受到材料内部发生的非辐射跃迁 nonradiative transition速率的限制。

3.The efficiency of phosphorescent materials can be significantly affected by nonradiative transition 非辐射跃迁 rates.

磷光材料的效率可能会受到非辐射跃迁 nonradiative transition速率的显著影响。

4.Researchers are investigating how to minimize nonradiative transition 非辐射跃迁 in quantum dots to enhance their luminescence.

研究人员正在探讨如何最小化量子点中的非辐射跃迁 nonradiative transition以增强其发光性。

5.The study of nonradiative transition 非辐射跃迁 mechanisms can lead to the development of better light-emitting diodes.

对非辐射跃迁 nonradiative transition机制的研究可以促进更好的发光二极管的发展。

作文

In the field of physics and chemistry, the concept of energy transitions plays a significant role in understanding how molecules and atoms behave. One such important transition is the nonradiative transition, which refers to the process where an excited state of a molecule or atom loses energy without emitting a photon. This phenomenon is crucial in various applications, including photophysics, photochemistry, and even in biological systems. To grasp the significance of nonradiative transition, it is essential to explore its mechanisms, implications, and applications.When a molecule absorbs energy, it often moves to an excited state, where its electrons are elevated to higher energy levels. In many cases, this energy can be released as light when the molecule returns to its ground state, a process known as radiative transition. However, not all excited states lead to the emission of light. The nonradiative transition occurs when the energy is instead dissipated through other means, such as vibrations within the molecule or interactions with surrounding molecules.Understanding nonradiative transition is particularly important in the context of luminescent materials. For instance, in organic light-emitting diodes (OLEDs), the efficiency of light emission is affected by the balance between radiative and nonradiative transitions. If a significant amount of energy is lost through nonradiative processes, the overall efficiency of the device decreases. Researchers strive to optimize the materials used in OLEDs to minimize nonradiative transitions and maximize light output.Moreover, nonradiative transitions also play a vital role in photosynthesis, the process by which plants convert sunlight into chemical energy. During photosynthesis, chlorophyll molecules absorb light and become excited. While some of this energy is used to drive chemical reactions, a portion is lost via nonradiative transitions. Understanding these transitions can help scientists improve the efficiency of artificial photosynthetic systems, which could lead to breakthroughs in renewable energy technology.In addition to technological applications, nonradiative transitions are also significant in biological systems. For example, in fluorescence microscopy, the efficiency of fluorescence can be affected by nonradiative transitions. When biological samples are labeled with fluorescent dyes, any energy lost through nonradiative transitions results in reduced signal intensity, making it harder to visualize the structures of interest. Therefore, researchers must consider nonradiative transitions when designing experiments and interpreting results in fluorescence studies.In conclusion, the study of nonradiative transitions is essential for advancing our understanding of various scientific fields. From improving the efficiency of light-emitting devices to enhancing the effectiveness of biological imaging techniques, recognizing the mechanisms and impacts of nonradiative transitions can lead to significant advancements. As research continues to evolve, the insights gained from studying these transitions will undoubtedly contribute to innovations in technology and science, paving the way for new discoveries and applications that harness the principles of energy transfer.

在物理和化学领域，能量转移的概念在理解分子和原子的行为中发挥着重要作用。其中一个重要的转变是非辐射跃迁，它指的是分子或原子的激发态在不发射光子的情况下失去能量的过程。这种现象在光物理、光化学甚至生物系统等各种应用中至关重要。要掌握非辐射跃迁的重要性，必须探讨其机制、影响和应用。当分子吸收能量时，它通常会移动到激发态，在此状态下，其电子被提升到更高的能级。在许多情况下，当分子返回基态时，这种能量可以作为光释放，这一过程称为辐射跃迁。然而，并非所有激发态都会导致光的发射。非辐射跃迁发生在能量通过其他方式耗散时，例如分子内部的振动或与周围分子的相互作用。理解非辐射跃迁在发光材料的背景下尤其重要。例如，在有机发光二极管（OLED）中，光发射的效率受到辐射跃迁和非辐射跃迁之间平衡的影响。如果大量能量通过非辐射过程损失，设备的整体效率就会降低。研究人员努力优化OLED中使用的材料，以最小化非辐射跃迁并最大化光输出。此外，非辐射跃迁在光合作用中也发挥着至关重要的作用，光合作用是植物将阳光转化为化学能的过程。在光合作用过程中，叶绿素分子吸收光并变得激发。虽然部分能量用于驱动化学反应，但部分能量通过非辐射跃迁损失。理解这些跃迁可以帮助科学家提高人工光合作用系统的效率，这可能导致可再生能源技术的突破。除了技术应用，非辐射跃迁在生物系统中也具有重要意义。例如，在荧光显微镜中，荧光的效率可能受到非辐射跃迁的影响。当生物样品被荧光染料标记时，通过非辐射跃迁损失的任何能量都会导致信号强度降低，从而使得可视化感兴趣结构变得更加困难。因此，研究人员在设计实验和解释荧光研究结果时，必须考虑非辐射跃迁。总之，研究非辐射跃迁对于推进我们对各个科学领域的理解至关重要。从提高发光设备的效率到增强生物成像技术的有效性，认识到非辐射跃迁的机制和影响可以带来显著的进展。随着研究的不断发展，研究这些跃迁所获得的见解无疑将有助于技术和科学的创新，为新发现和应用铺平道路，利用能量转移的原理。