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相关概念视频

P-N junction01:11

P-N junction

537
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...
537

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双重全聚合物太阳能电池与基基固体添加剂超过18%的效率.

Wanying Feng1,2, Tianqi Chen1, Yulu Li3

  • 1School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, 300350, Tianjin, China.

Angewandte Chemie (International ed. in English)
|January 3, 2024
PubMed
概括

研究人员开发了新的固体添加剂 (SAs),以改进全聚合物有机太阳能电池 (APSC). 这些化硫增强了设备的性能,在有机太阳能电池中实现了创纪录的功率转换效率 (PCE) 18.3%.

关键词:
全聚合物太阳能电池 聚合物太阳能电池化硫二烯 (Halogenated Thiophene) 是一种化硫二烯 (Halogenated Thiophene) 的一种化合物.具有高效率的高效率形态学 形态学 形态学固体添加剂 固体添加剂

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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:

  • 全聚合物混合物的形态控制对于高性能有机太阳能电池至关重要.
  • 固体添加剂 (SAs) 在优化聚合物形态方面表现有前途:小分子混合物.

研究的目的:

  • 研究使用三种超化硫作为SAS来优化全聚合物有机太阳能电池 (APSCs).
  • 通过形态调来提高APSC的功率转换效率 (PCE) 和稳定性.

主要方法:

  • 合成和表征三种超化硫 (SA-T1,SA-T2,SA-T3). 这三种硫的合成和表征.
  • 使用PM6:PY-IT混合物制造和测试全聚合物太阳能电池,使用或不使用SAS.
  • 在现场UV/Vis光谱学研究形态演变.

主要成果:

  • 在PM6:PY-IT混合物中引入精细调节的分子包装和优化的形态.
  • 用SA处理的设备显示了功率转换效率 (PCE) 的提高,从17.4%到18.3%不等.
  • 对于二进制APSC,SA-T1实现了创纪录的PCE18.3%,在其他混合物中证明了普遍性.

结论:

  • 化硫作为有效的固体添加剂,优化APSC的形态和性能.
  • 开发的SA提供了实现高效率和稳定的全聚合物有机太阳能电池的新策略.
  • SA-T1显示出在有机光伏领域推进的巨大潜力.