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相关概念视频

P-N junction01:11

P-N junction

469
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...
469

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Close-Space Sublimation-Deposited Ultra-Thin CdSeTe/CdTe Solar Cells for Enhanced Short-Circuit Current Density and Photoluminescence
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立式1D链可以实现高效的宽带间隔太阳能电池.

Qingxiang Liu1,2, Xia Wang3, Zongbao Li4

  • 1Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.

Advanced materials (Deerfield Beach, Fla.)
|November 7, 2024
PubMed
概括

研究人员通过控制晶体方向来增强 (Se) 太阳能电池,以便更好地运输载体. 这一突破实现了创纪录的8.1%的功率转换效率和出色的稳定性.

关键词:
存款方式 存款方式 存款方式导航 导航 导航 导向 导向太阳能光伏发电是如何实现的是一种.薄膜薄膜是一种薄膜.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 太阳能光伏发电是如何实现的
  • 固态物理 固态物理

背景情况:

  • (Se) 是一个有前途的光伏材料,由于其宽带间隙,稳定性和无毒性.
  • 传统的Se膜由于其低能躺晶的方向而表现出较差的载体传输.
  • 这种方向阻碍了Se链之间的弱范德瓦尔斯键之间有效的电荷运动.

研究的目的:

  • 开发一种提高载体运输性能的膜生长方法.
  • 提高基于的太阳能电池的功率转换效率和稳定性.
  • 在光伏应用中克服面向躺式Se晶体结构的局限性.

主要方法:

  • 引入了基板加热策略,以促进Se与基板之间的界面粘合.
  • 促进了薄膜的生长,具有直立的方向 (链垂直于基板).
  • 测量了制造的Se太阳能电池的载体移动性和功率转换效率.

主要成果:

  • 实现了面向立体的Se薄膜,在联链上显著增强了载体运输.
  • 与倾斜导向的Se膜相比,载体移动性增加了四倍.
  • 在标准1太阳照明下 (AM1.5G) 达到8.1%的创纪录功率转换效率.

结论:

  • 基板加热策略有效地实现了面向站立的Se增长,以获得卓越的光伏性能.
  • 新的Se太阳能电池显示出出色的稳定性,在1000小时的环境储存后,效率损失微不足道.
  • 这项工作突出了面向膜在高效,稳定和无毒太阳能转换方面的潜力.