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P-N junction

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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Updated: Feb 27, 2026

In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation

In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation

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一种P型有机染料作为高效和稳定的倒立矿太阳能电池的接口层.

Mingming Zhao^1,2, Limei Wu¹, Kun Gong¹

¹School of Chemical Engineering and Technology, Tianjin University, Tianjin, P. R. China.

Small (Weinheim an der Bergstrasse, Germany)

|February 26, 2026

概括

使用TPA-CN有机染料的接口修改增强了氧化物 (NiO) 在矿太阳能电池 (PSC) 中. 这提高了效率,并大大提高了长期的运营稳定性,解决了关键的退化问题.

关键词:

缺陷被动化缺陷被动化倒置矿太阳能电池的使用方法在p-DSSC中使用.自己组装的单层单层.

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Last Updated: Feb 27, 2026

In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation

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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:

氧化 (NiO_x) 是逆转矿太阳能电池 (PSC) 中一个关键的孔运输材料.
在NiO_x-矿接口的光诱导降解限制了PSC的运行寿命.
接口工程对于提高PSC性能和稳定性至关重要.

研究的目的:

调查TPA-CN有机染料作为自组装单层 (SAM) 的使用,用于在倒置PSC中进行界面修改.
为了提高基于NiO_x的反转PSC的性能和长期稳定性.
了解介面被动化和电荷转移背后的分子机制.

主要方法:

利用TPA-CN作为SAM分子用于NiO_x和矿层之间的接口修改.
描述了TPA-CN对Ni3+和Pb2+缺陷的抑制作用.
分析了电荷传输动态和设备性能指标 (PCE).
在长时间的光照和环境条件下评估设备的稳定性.

主要成果:

TPA-CN SAMs有效地被动化了NiOx中的Ni3+缺陷和矿中的Pb2+缺乏协调,降低了陷密度.
观察到从矿到NiO_x的增强的孔提取和电荷转移.
改造设备的峰值功率转换效率 (PCE) 为25.54%,控制设备的峰值功率转换效率为21.80%.
没有封装的设备在1800小时 (ISOS-D-1) 后保留了89.2%的初始PCE,在500小时的1太阳照明后保持了95.3%.

结论:

TPA-CN作为一个有效的分子桥梁,提高了反转PSC的性能和稳定性.
这种分子设计方法为开发高性能,稳定的矿太阳能电池提供了可行的策略.
与SAM的接口工程是克服PSC降解挑战的有希望的途径.