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相关概念视频

P-N junction01:11

P-N junction

507
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...
507

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相关实验视频

Updated: Jun 20, 2025

Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance
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在现场埋葬的接口工程向可打印的Pb-Sn矿太阳能电池.

Johnpaul K Pious1, Huagui Lai1, Juntao Hu2

  • 1Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Ueberlandstrasse 129, Dübendorf 8600, Switzerland.

ACS applied materials & interfaces
|July 20, 2024
PubMed
概括
此摘要是机器生成的。

研究人员改进了矿太阳能电池 (PSC) 通过将孔输送层 (HTL) 修改为2-甲酸 (FBI). 这减少了重组,提高了锡PSC的效率和电压.

关键词:
添加剂2-二基酸添加剂叶片涂层 - 叶片的涂层埋葬的接口接口低带隙 Pb−Sn 矿石 矿石矿太阳能电池正在升级规模.

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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:

  • 高效率的-锡窄带隙矿太阳能电池 (PSC) 通常使用PEDOT:PSS作为一个孔输送层 (HTL).
  • PEDOT:PSS的浅工作功能导致矿/HTL接口的少数载体重组,限制了设备的性能.

研究的目的:

  • 解决PEDOT:PSS在PSC中的局限性,通过抑制矿/HTL接口的非辐射重组.
  • 通过现场接口工程提高锡PSC的效率和开放电路电压 (V_OC).

主要方法:

  • 采用在现场接口工程策略使用二甲酸 (FBI) 来修改PEDOT:PSS HTL.
  • 在 FBI 修改之前和之后测量了 PEDOT:PSS 的工作函数 (W_F).
  • 修改后的PSC的性能被评估,包括功率转换效率和V_OC.

主要成果:

  • 联邦调查局的修改使PEDOT:PSS的工作功能增加了0.1 eV.
  • 带有FBI修改的锡PSC实现了20.5%的功率转换效率和0.843V的V_OC.
  • 该策略成功地应用于叶片涂层PSC,产生18.3%的效率和0.845V的V_OC.

结论:

  • 使用 FBI 的现场接口修改有效地抑制了矿/HTL 接口的非辐射重组.
  • 联邦调查局是提高锡PSC性能的一个有希望的策略,特别是在可扩展的制造方法,如刀片涂层.