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相关概念视频

Photoelectric Effect02:26

Photoelectric Effect

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When light of a particular wavelength strikes a metal surface, electrons are emitted. This is called the photoelectric effect. The minimum frequency of light that can cause such emission of electrons is called the threshold frequency, which is specific to the metal. Light with a frequency lower than the threshold frequency, even if it is of high intensity, cannot initiate the emission of electrons. However, when the frequency is higher than the threshold value, the number of electrons ejected...
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P-N junction01:11

P-N junction

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A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...
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Photoreceptors and Plant Responses to Light02:00

Photoreceptors and Plant Responses to Light

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Light plays a significant role in regulating the growth and development of plants. In addition to providing energy for photosynthesis, light provides other important cues to regulate a range of developmental and physiological responses in plants.
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相关实验视频

Updated: Feb 28, 2026

Indoor Experimental Assessment of the Efficiency and Irradiance Spot of the Achromatic Doublet on Glass ADG Fresnel Lens for Concentrating Photovoltaics
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太阳花灵感的零能源消耗热开关用于双模式光彩智能窗口.

Zhenxin Kuang1,2, Weihao Meng3, Junchao Liu4

  • 1Laboratory of Bio-Inspired Smart Interface Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.

ACS applied materials & interfaces
|February 27, 2026
PubMed
概括

一个新的零能源智能窗户使用热触发器自动调整热和冷条件,降低室内温度并为可持续城市发展节省能源.

关键词:
执行器执行器的执行器仿生生物技术 (BIONIC) 是一种摄影色智能窗口聚氨双向形状记忆聚合物聚合物热管理 热管理

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Asymmetric Thermoelectrochemical Cell for Harvesting Low-grade Heat under Isothermal Operation
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Determination of the Photoisomerization Quantum Yield of a Hydrazone Photoswitch
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Asymmetric Thermoelectrochemical Cell for Harvesting Low-grade Heat under Isothermal Operation
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Determination of the Photoisomerization Quantum Yield of a Hydrazone Photoswitch
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科学领域:

  • 材料科学 材料科学 材料科学
  • 可持续建筑技术 可持续建筑技术
  • 能源效率 能源效率 能源效率

背景情况:

  • 建筑能效对于可持续的城市发展至关重要.
  • 智能窗户可以通过适应环境条件来减少能源消耗.
  • 当前的智能窗户技术往往需要外部能源来切换.

研究的目的:

  • 设计一个零能耗,热触发的智能窗户设备.
  • 创建一个双模式的光色智能窗口,具有自动切换功能.
  • 提高建筑热管理,降低能源成本.

主要方法:

  • 开发了一个智能窗口,采用合铜的WO3光色膜和聚氨双向形状记忆聚合物.
  • 集成了一个热触发的自动切换机制,灵感来自向日的行为.
  • 在模拟的热冷环境中测试了原型的性能.

主要成果:

  • 与控制室相比,在炎热的条件下,室内温度降低了4.86°C.
  • 在炎热的环境中证明有效地排斥太阳能热量.
  • 证实了该设备在寒冷条件下允许阳光进入,以获得温暖的能力.
  • 在200个循环中展示了出色的回收性能.

结论:

  • 开发的零能源热管理装置为建筑物提供了有效的自动温度控制.
  • 这项技术为低碳和环保的城市发展做出了重大贡献.
  • 双模式智能窗户为减少室内能源消耗提供了可持续的解决方案.