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相关概念视频

Ionic Radii03:10

Ionic Radii

33.5K
Ionic radius is the measure used to describe the size of an ion. A cation always has fewer electrons and the same number of protons as the parent atom; it is smaller than the atom from which it is derived. For example, the covalent radius of an aluminum atom (1s22s22p63s23p1) is 118 pm, whereas the ionic radius of an Al3+ (1s22s22p6) is 68 pm. As electrons are removed from the outer valence shell, the remaining core electrons occupying smaller shells experience a greater effective nuclear...
33.5K
Ionic Bonds00:42

Ionic Bonds

130.8K
Overview
When atoms gain or lose electrons to achieve a more stable electron configuration they form ions. Ionic bonds are electrostatic attractions between ions with opposite charges. Ionic compounds are rigid and brittle when solid and may dissociate into their constituent ions in water. Covalent compounds, by contrast, remain intact unless a chemical reaction breaks them.
Opposing Charges Hold Ions Together in Ionic Compounds
Ionic bonds are reversible electrostatic interactions between ions...
130.8K
Molecular and Ionic Solids02:54

Molecular and Ionic Solids

20.1K
Crystalline solids are divided into four types: molecular, ionic, metallic, and covalent network based on the type of constituent units and their interparticle interactions.
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
20.1K
Polymers02:34

Polymers

40.9K
The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the...
40.9K
Solubility of Ionic Compounds02:55

Solubility of Ionic Compounds

68.2K
Solubility is the measure of the maximum amount of solute that can be dissolved in a given quantity of solvent at a given temperature and pressure. Solubility is usually measured in molarity (M) or moles per liter (mol/L). A compound is termed soluble if it dissolves in water.
68.2K
Ionic Crystal Structures02:42

Ionic Crystal Structures

17.0K
Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
17.0K

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相关实验视频

Updated: Feb 3, 2026

Nanostructured Ag-zeolite Composites as Luminescence-based Humidity Sensors
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Nanostructured Ag-zeolite Composites as Luminescence-based Humidity Sensors

Published on: November 15, 2016

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双模态离子聚合物光学波导网格传感器用于温度和湿度检测.

Yunlong Yu1, Huayue Zhao1, Yaping Song1

  • 1State Key Laboratory of Integrated Optoelectronics, JLU Region, College of Electronic Science and Engineering, Jilin University, Changchun 130012, P.R. China.

ACS applied materials & interfaces
|February 1, 2026
PubMed
概括
此摘要是机器生成的。

一个新的长周期格子 (LPG) 传感器使用多离子液体 (PILs) 波导来同时检测温度和湿度. 这种光学传感方法为双模环境监测提供了高灵敏度和分辨率.

关键词:
长期波导网格 长期波导网格在芯片上检测检测.光学湿度传感器是一种光学湿度传感器.这是一个光学温度传感器.这是一种多离子液体.

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Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor

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Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
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Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

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相关实验视频

Last Updated: Feb 3, 2026

Nanostructured Ag-zeolite Composites as Luminescence-based Humidity Sensors
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Nanostructured Ag-zeolite Composites as Luminescence-based Humidity Sensors

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Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor
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Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor

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科学领域:

  • 光子学和光学传感器
  • 材料科学 材料科学 材料科学
  • 化学工程是化学工程的重要组成部分.

背景情况:

  • 准确的环境监测需要灵敏可靠的传感器.
  • 开发多个参数的集成光学传感器对于先进的应用至关重要.
  • 聚离子液体 (PIL) 为光学传感应用提供独特的特性.

研究的目的:

  • 提出和演示一个长期格子 (LPG) 传感器,用于温度和湿度的双模式检测.
  • 为了研究金属印制的多离子液体 (PILs) 波导用于光学传感.
  • 为了实现高灵敏度的环境参数监测,使用自由离子动态机制.

主要方法:

  • 制造一个金属打印的PILs波导与LPG集成.
  • 使用光学传感模块来监测波导的变化.
  • 描述传感器对温度和湿度变化的反应.

主要成果:

  • 液化天然气传感器实现了双模式检测,具有明显的温度和湿度传感能力.
  • 证明了高灵敏度:温度为650nm/K,湿度为1.05nm/%RH.
  • 实现了出色的分辨率:温度为0.01K,湿度为1%RH.
  • 获得的离子热光学 (ITO) 和离子湿光学 (IHO) 系数分别为 -9.3 × 10-4/K和 -3.1 × 10-4/% RH.

结论:

  • 拟议的液化天然气传感器有效地同时进行高灵敏度的温度和湿度监测.
  • 金属打印的PILs波导是光学传感的可行平台.
  • 这种光子集成电路技术显示出对芯片上多式模式参数检测的前景.