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Atomic Spectroscopy: Effects of Temperature01:27

Atomic Spectroscopy: Effects of Temperature

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Atomization, converting samples into gas-phase atoms and ions, is essential for atomic spectroscopy. The flame temperature required for atomization affects the efficiency of the atomic spectroscopic methods by increasing the atomization efficiency and the relative population of the excited and ground states.
At thermal equilibrium, the relative populations of excited and ground state atoms can be estimated using the Maxwell–Boltzmann distribution. For example, an increase in temperature...
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Thermosensation01:43

Thermosensation

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Peripheral thermosensation is the perception of external temperature. A change in temperature (on the surface of the skin and other tissues) is detected by a family of temperature-sensitive ion channels called Transient Receptor Potential, or TRP, receptors. These receptors are located on free nerve endings. Those detecting cold temperatures are closer to the surface of the skin than the nerve endings detecting warmth. These thermoTRP channels, while temperature selective, have relatively...
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Decreased Body Temperature01:29

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A decreased body temperature can occur in patients with hypothermia and frostbite. Heat loss with extended cold exposure overpowers the body's ability to create heat, resulting in hypothermia. Core temperature readings help classify hypothermia. Mild hypothermia is temperatures between 32 °C (89.6 °F) and 35°C (95 °F) and is caused by impaired thermoregulation. Moderate hypothermia is temperatures between 28 C (82.4 °F) and 32 °C (89.6 °F) caused by...
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A thermometer measures body temperature. The common sites for measuring body temperature are the oral cavity, axillary region, temporal artery, and skin surface, such as the forehead, abdomen, and axilla. True core body temperature is assessed in the rectum, tympanic membrane, pulmonary artery, esophagus, and urinary bladder.
Oral: When assessing oral temperature, the thermometer tip should be placed under the tongue in the posterior sublingual pocket. It offers accurate readings and can be...
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¹H NMR of Conformationally Flexible Molecules: Variable-Temperature NMR01:15

¹H NMR of Conformationally Flexible Molecules: Variable-Temperature NMR

1.1K
The axial and equatorial protons in cyclohexane can be distinguished by performing a variable-temperature NMR experiment. In this process, except for one proton, the remaining eleven protons are replaced by deuterium. The deuterium substitution avoids the possible peak splitting caused by the spin-spin coupling between the adjacent protons. The remaining proton flips between the axial and equatorial positions.
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Thermal Strain01:19

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Thermal strain is a concept that arises when we consider how temperature changes affect structures. Unlike the conventional assumption that structures remain constant under load, real-world scenarios often involve temperature fluctuations that can significantly impact these structures. Consider a homogeneous rod with a uniform cross-section resting freely on a flat horizontal surface. If the rod's temperature increases, the rod elongates. This elongation is proportional to the temperature...
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Investigation of Early Plasma Evolution Induced by Ultrashort Laser Pulses
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超低温SnO的使用方法

Liguo Gao1, Zhen He1, Ke Zeng1

  • 1State Key Laboratory of Fine Chemicals, Dalian University of Technology, 116023, Dalian, China.

ChemSusChem
|June 8, 2023
PubMed
概括
此摘要是机器生成的。

在低温下使用中控化学浴沉积 (IC-CBD) 制造的氧化 (SnO2) 电子输送层提高了矿太阳能电池的性能和稳定性. 这种新的方法导致缺陷减少,并改善界面接触,以实现有效的太阳能转换.

关键词:
化学浴室沉积的化学浴室沉积控制的中间体.矿石太阳能电池 矿石太阳能电池SnO2 电子输送层中的电子输送层超低温 - - 超低温的温度.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 可再生能源可再生能源是可再生能源.
  • 纳米技术纳米技术

背景情况:

  • 氧化锡 (SnO2) 是矿太阳能电池 (PSC) 中的关键电子输送层 (ETL),因为它具有高载体流动性,合适的带对齐和光学透明度.
  • 有效的ETL对于提高PSC的性能和稳定性至关重要.

研究的目的:

  • 开发SnO2ETL的超低温制造方法,使用中介控制化学浴沉积 (IC-CBD).
  • 研究IC-CBD对SnO2ETL结构和电子特性的影响.
  • 评估包含IC-CBD衍生SnO2ETL的PSC的性能和稳定性.

主要方法:

  • 在超低温度下通过中间控制化学浴沉积 (IC-CBD) 制造SnO2ETL.
  • 使用合剂来控制SnO2沉积期间的核和生长.
  • 对缺陷,表面形态,结晶性和与矿接口接触的SnO2ETL的表征.
  • 使用开发的SnO2ETLs制造和测试矿太阳能电池 (PSCs).

主要成果:

  • 与传统CBD相比,IC-CBD方法产生了具有明显较低缺陷密度的SnO2 ETL.
  • 制造的SnO2 ETL表现出更光滑的表面,更好的结晶性,以及与矿层的优越接口接触.
  • 使用IC-CBD衍生SnO2ETL的PSC实现了23.17%的高功率转换效率.
  • 在使用IC-CBD制造的SnO2 ETLs的PSC中观察到增强的设备稳定性.

结论:

  • 中间控制化学浴沉积 (IC-CBD) 是一种有效的超低温策略,用于制造高质量的SnO2 ETL.
  • 来自IC-CBD的SnO2 ETL的改进性能直接促进了矿膜质量,光伏性能和设备稳定性的提高.
  • 这项工作为可扩展和高效的矿太阳能电池制造提供了一个有希望的方法.