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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...
Additives and Fillers in Concrete01:29

Additives and Fillers in Concrete

Additives and fillers are integral to enhancing the properties of concrete. Pozzolans and blast-furnace slag are additives or admixtures due to their reactions with calcium hydroxide released during cement hydration. Fillers, which are finely ground and similar in fineness to Portland cement, improve concrete attributes such as workability density, and reduce capillary bleeding or cracking. Some fillers possess hydraulic properties or participate in benign reactions within the cement paste.
The...

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相关实验视频

Updated: Jul 7, 2026

Printing Fabrication of Bulk Heterojunction Solar Cells and In Situ Morphology Characterization
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Published on: January 29, 2017

处理添加剂,以提高批量异质连接太阳能电池的效率.

Jae Kwan Lee1, Wan Li Ma, Christoph J Brabec

  • 1Center for Polymers and Organic Solids, University of California at Santa Barbara, Santa Barbara, California 93106, USA.

Journal of the American Chemical Society
|February 22, 2008
PubMed
概括
此摘要是机器生成的。

研究人员确定了批量异质连接 (BHJ) 太阳能电池中加工添加剂的标准. 使用1,8-二二度,BHJ太阳能电池的效率显著提高,证明了有效的形态控制.

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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:

  • 大量异质连接 (BHJ) 太阳能电池需要精确的形态控制才能达到最佳性能.
  • 加工添加剂在实现所需的BHJ纳米结构方面发挥着至关重要的作用.
  • 现有的添加剂往往缺乏有效的形态控制的理想性质.

研究的目的:

  • 确定BHJ太阳能电池中有效加工添加剂的关键标准.
  • 作为新型加工添加剂,研究1,8-di(R) 乙.
  • 通过改进形态来提高BHJ太阳能电池的功率转换效率.

主要方法:

  • 定义了加工添加剂的两个标准:选择性烯溶解度和比主溶剂更高的沸点.
  • 合成并测试了各种1,8-di(R) octanes作为加工添加剂.
  • 制造和特征BHJ太阳能电池,有或没有研究的添加剂.

主要成果:

  • 证明,具有适当的功能组的1,8-di(R) octanes可以通过选择性烯溶解性有效控制BHJ形态.
  • 确定了1,8-二二多多作为测试化合物中最有效的添加剂.
  • 在BHJ太阳能电池中,通过使用1,8-二二多多,实现了显著的功率转换效率从3.4%提高到5.1%.

结论:

  • 确定的标准对于选择BHJ太阳能电池的加工添加剂是有效的.
  • 1,8-二度是一种有前途的加工添加剂,可以提高BHJ太阳能电池的性能.
  • 选择性烯溶解度和高沸点对于控制BHJ形态和提高设备效率至关重要.