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Polymer Classification: Crystallinity

Polymer Classification: Crystallinity

Unlike ionic or small covalent molecules, polymers do not form crystalline solids due to the diffusion limitations of their long-chain structures. However, polymers contain microscopic crystalline domains separated by amorphous domains.
Crystalline domains are the regions where polymer chains are aligned in an orderly manner and held together in proximity by intermolecular forces. For example, chains in the crystalline domains of polyethylene and nylon are bound together by van der Waals...

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相关实验视频

Updated: May 15, 2025

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

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

Published on: January 10, 2017

接收器晶度工程使得>20%的效率可实现 83.0%填充因子的二元有机太阳能电池.

Jiawei Deng^1,2,3, Wenhao Li⁴, Rui Zeng²

¹Hangzhou International Innovation Institute, Beihang University, Hangzhou, 311115, P. R. China.

Advanced materials (Deerfield Beach, Fla.)

|April 7, 2025

概括

研究人员开发了一种使用三乙烯 (TCE) 溶剂改善有机太阳能电池 (OSC) 形态的新方法. 这提高了效率,并实现了有机太阳能电池83%的破纪录的填充系数 (FF).

关键词:

接受者的接受者填充因子填充因子有机太阳能电池是有机太阳能电池.运输阶段的运输阶段用陷辅助的重组技术进行.

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In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation

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Printing Fabrication of Bulk Heterojunction Solar Cells and In Situ Morphology Characterization

Printing Fabrication of Bulk Heterojunction Solar Cells and In Situ Morphology Characterization

Published on: January 29, 2017

相关实验视频

Last Updated: May 15, 2025

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

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

Published on: January 10, 2017

In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation

In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation

Published on: March 2, 2021

Printing Fabrication of Bulk Heterojunction Solar Cells and In Situ Morphology Characterization

Printing Fabrication of Bulk Heterojunction Solar Cells and In Situ Morphology Characterization

Published on: January 29, 2017

科学领域:

材料科学材料科学材料科学
有机电子有机电子
太阳能光伏发电是如何实现的

背景情况:

有机光伏材料的形态优化是具有挑战性的,因为捐赠和接受器组件的结晶性不同.
晶体不完美导致陷辅助重组,限制有机太阳能电池 (OSC) 中的填充因子 (FF).

研究的目的:

引入一种方法来精确调节OSC中的受体结晶度.
通过改进接受器处理来增强有机太阳能电池的形态和性能.

主要方法:

使用三乙烯 (TCE) 作为上层受体处理溶剂.
优化了受体分子的分子间相互作用和膜形成过程.
研究了TCE对活性层形态和电荷传输的影响.

主要成果:

在二元有机太阳能电池中实现了20.05%的功率转换效率.
获得了前所未有的83.0%的填充系数 (FF),这是OSC报告的最高值.
由于电子输送通路的改进,被证明减少了陷辅助的电荷重组.

结论:

TCE溶剂方法有效调节受体结晶性,改善垂直形态.
这种方法有助于在OSC建立高效的收费运输网络.
简单的方法可以制造高效率和形态稳定的有机太阳能电池.