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相关概念视频

P-N junction01:11

P-N junction

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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相关实验视频

Updated: May 22, 2026

Integrating a Triplet-triplet Annihilation Up-conversion System to Enhance Dye-sensitized Solar Cell Response to Sub-bandgap Light
11:26

Integrating a Triplet-triplet Annihilation Up-conversion System to Enhance Dye-sensitized Solar Cell Response to Sub-bandgap Light

Published on: September 12, 2014

全固态染料敏感化太阳能电池具有高效率.

In Chung1, Byunghong Lee, Jiaqing He

  • 1Department of Chemistry, Northwestern University, Evanston, Illinois 60208, USA.

Nature
|May 25, 2012
PubMed
概括
此摘要是机器生成的。

固态染料敏感化太阳能电池使用酸 (CsSnI3) 作为孔导体,取代液体电解质. 这项创新提高了耐用性,并增强了光吸收,以便更好地转换太阳能.

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相关实验视频

Last Updated: May 22, 2026

Integrating a Triplet-triplet Annihilation Up-conversion System to Enhance Dye-sensitized Solar Cell Response to Sub-bandgap Light
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科学领域:

  • 材料科学 材料科学 材料科学
  • 可再生能源可再生能源是可再生能源.
  • 太阳能光伏发电是如何实现的

背景情况:

  • 染料敏感太阳能电池 (DSSC) 为传统的基于的设备提供了低成本的光伏替代方案.
  • 目前的DSSC由于液体电解质而面临耐用性问题,导致腐蚀和泄漏.
  • 现有的固态DSSC电解质的效率有限.

研究的目的:

  • 开发一种稳定,高效的固态染料敏感太阳能电池.
  • 为了研究酸 (CsSnI3) 作为固态孔导体.
  • 为了提高可见光在红色光谱中的吸收,以改善太阳能转换.

主要方法:

  • 使用纳米孔的二氧化 (TiO2),N719染料和CsSnI2.95F0.05合SnF2作为孔导体制造固态DSSC.
  • 设备性能的表征,包括功率转换效率.
  • 分析CsSnI3的光学特性,包括其带隙和光吸收光谱.

主要成果:

  • 实现了高达10.2%的功率转换效率 (使用面罩达到8.51%).
  • 证明了CsSnI3作为可处理溶液的p型半导体的适用性,用于孔导.
  • 由于CsSnI3的1.3 eV带隙,在光谱的红色部分观察到增强的可见光吸收.

结论:

  • 使用CsSnI3的固态DSSC为基于液体电解质的设备提供了一个有希望的,持久的替代方案.
  • 基于 CsSnI3 的 DSSC 显示出具有竞争力的转换效率和更好的光谱响应.
  • 这项研究为更强大,更高效的染料敏感太阳能电池技术铺平了道路.