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相关概念视频

Additives and Fillers in Concrete01:29

Additives and Fillers in Concrete

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Additives and fillers are integral to enhancing the properties of concrete. Pozzolans and blast-furnace slag are additives or admixtures due to their reactions with calcium hydroxide released during cement hydration. Fillers, which are finely ground and similar in fineness to Portland cement, improve concrete attributes such as workability density, and reduce capillary bleeding or cracking. Some fillers possess hydraulic properties or participate in benign reactions within the cement paste.
The...
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Printing Fabrication of Bulk Heterojunction Solar Cells and In Situ Morphology Characterization
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自发扩散加工有机光伏的固体添加剂

Huitong Deng1,2, Qianqing Jiang2, Dianyi Liu1,2,3,4,5

  • 1Zhejiang University, Hangzhou, Zhejiang, 310027, China.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|August 26, 2025
PubMed
概括

研究人员使用绿色溶剂和固体添加剂开发了一种新的有机光伏自发传播技术. 这种方法提高了薄膜的均性和形态,实现了16.4%的功率转换效率.

关键词:
绿色溶剂有机光伏产品固体添加剂自发传播

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Morphology Control for Fully Printable Organic–Inorganic Bulk-heterojunction Solar Cells Based on a Ti-alkoxide and Semiconducting Polymer
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科学领域:

  • 材料科学
  • 有机电子
  • 可再生能源

背景情况:

  • 自发扩散 (SS) 是有机光伏 (OPV) 的溶液加工制造方法.
  • 目前的SS方法在实现均薄膜厚度和均形态方面面临挑战.
  • 开发高效且可重复的OPV制造对于可再生能源的发展至关重要.

研究的目的:

  • 开发一种改进的SS工艺,用于制造有机光伏 (OPV).
  • 为了解决SS处理的OPV膜均性和形态控制的局限性.
  • 引入固体添加剂作为优化SS膜形成的策略.

主要方法:

  • 使用绿色溶剂o-xylene开发了一种自发扩散 (SS) 过程.
  • 使用 (PAT) 作为固体添加剂来调节界面张力和干燥时间.
  • 在水面上制造的均SS薄膜用于OPV活性层.

主要成果:

  • 在水面上实现了统一的SS膜形成.
  • 氨酸 (PAT) 添加剂改善了分子包装和相隔形态.
  • 由此产生的OPV装置的功率转换效率为16.4%.

结论:

  • 在SS加工的OPV中首次引入固体添加剂,以控制膜形成动力学和形态学.
  • 展示了一种多功能和简单的方法来制造可处理和可重复的OPV.
  • 新的SS方法为高效的有机光伏设备制造提供了一个有前途的策略.