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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

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Morphology Control for Fully Printable Organic–Inorganic Bulk-heterojunction Solar Cells Based on a Ti-alkoxide and Semiconducting Polymer
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平行相似的散装异质连接聚合物太阳能电池

Liqiang Yang1, Huaxing Zhou, Samuel C Price

  • 1Curriculum in Applied Sciences and Engineering, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3287, United States.

Journal of the American Chemical Society
|March 8, 2012
PubMed
概括
此摘要是机器生成的。

一个新的平行类散体异质连接 (PBHJ) 太阳能电池设计结合了简单的处理与多种聚合物. 这种方法提高了短路电流和整体效率,而不是单节电池.

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科学领域:

  • 有机电子学有机电子学
  • 太阳能光伏发电是如何实现的
  • 材料科学是一种材料科学.

背景情况:

  • 单连接批量异质连接 (BHJ) 太阳能电池提供简单的加工和低成本.
  • 协奏式太阳能电池通过结合多种吸光材料来实现更高的效率,但通常涉及复杂的配置.
  • 需要高效的太阳能电池架构,以平衡性能和制造简单性.

研究的目的:

  • 引入一种新的平行类散体异质连接 (PBHJ) 太阳能电池架构.
  • 结合单节BHJ电池 (简单,低成本) 的优点与合电池 (多重吸光器) 的优点.
  • 调查PBHJ设计的载荷运输和性能特征.

主要方法:

  • 制造PBHJ太阳能电池,使用多种捐助聚合物和富勒烯丰富域.
  • 设备性能的表征,包括短路电流 (Jsc) 和开路电压 (Voc).
  • 将PBHJ性能与传统的单节BHJ设备进行比较.

主要成果:

  • PBHJ架构通过不同的捐赠聚合物通道向电极方便电荷载体运输,模拟并行连接.
  • PBHJ太阳能电池的短路电流 (Jsc) 几乎相当于单个子电池的总和.
  • 发现PBHJ设备的开放电路电压 (Voc) 在子电池之间的中间值.
  • 初步优化带来了显著的改进:与单节BHJ电池相比,Jsc提高了40%和整体效率 (η) 提高了30%.

结论:

  • 平行类散体异质连接 (PBHJ) 是有机太阳能电池的可行和有前途的新方法.
  • PBHJ细胞有效地整合了多种吸光聚合物,同时保持了简单的设备结构.
  • 这种架构为增强光伏性能提供了一条途径,而不会影响处理优势.