相关实验视频

Updated: Sep 18, 2025

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

Published on: March 2, 2021

在矿有机合太阳能电池中高效的近红外采集

Zhenrong Jia^1,2, Xiao Guo^1,2, Xinxing Yin³

¹Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, Singapore.

|June 25, 2025

概括

研究人员开发了一种新的有机材料P2EH-1V, 这项创新提高了近红外光捕获效率,达到创纪录的26.7%的功率转换效率.

科学领域:

材料科学
可再生能源
太阳能发电

背景情况:

由于可调节的带隙,矿有机合太阳能电池具有较高的理论效率.
目前的设备受到有机子细胞中近红外光流不足的限制.
窄带间的有机半导体对于高效的太阳能电池至关重要.

研究的目的:

为有机子细胞设计和合成一种新型非对称非烯受体 (NFA).
提高近红外光电流和矿有机合太阳能电池的整体效率.
解决有机半导体中的激子解离和纳米形态的局限性.

主要方法:

合成一个不对称的非富勒因受体 (NFA),P2EH-1V,带有单侧联 π 桥.
在保持激子解离和纳米形态的同时,光学带隙减少到1.27 eV.
暂时吸收光谱验证从P2EH-1V转移到捐赠的PM6.

主要成果:

有机底部电池达到17.9%的效率,短路电流密度高达28.60mA cm-2.
在不影响电荷生成效率的情况下,观察到非辐射电压损失的减少 (0. 20 eV).
矿顶电池实现了1.37V的高开通电压 (Voc) 和85.5%的充电因子 (FF).

结论:

新的NFA,P2EH-1V,有效地增强近红外光电流在矿有机合太阳能电池.
最小的接口重组损失有助于提高设备的性能.
矿有机合太阳能电池在1平方厘米的开口面积上实现了26.4%的创纪录的效率.

更多相关视频

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells

Published on: March 19, 2017

Flash Infrared Annealing for Perovskite Solar Cell Processing

Flash Infrared Annealing for Perovskite Solar Cell Processing

Published on: February 3, 2021

相关概念视频

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...