在活性/接口层上增强非共价相互作用,通过二维米化剂对高效有机太阳能电池进行二维米化
Xu Ding1, Yu-Feng Ding2, Chenhui Huang1
1College of Mechanical Engineering, University of South China, Hengyang, 421001, P. R. China.
Small (Weinheim an der Bergstrasse, Germany)
|February 24, 2024
概括
研究人员通过改进接口层使用二维米 (VML) 来提高有机太阳能电池的效率. 这提高了非富勒烯有机太阳能电池的电子提取和功率转换效率 (PCE).
科学领域:
- 材料科学 材料科学 材料科学
- 有机电子 有机电子
- 可再生能源可再生能源是可再生能源.
背景情况:
- 接口修改对于提高有机太阳能电池 (OSC) 的功率转换效率 (PCE) 是至关重要的.
- 阴极接口层 (CIL) 和非富勒烯受体 (NFA) 之间的弱非共价相互作用阻碍了OSC中的电荷收集.
研究的目的:
- 改进CILs和NFAs之间的非共价相互作用.
- 提高OSC中的电子传输和提取效率.
- 提高非富勒伦OSC的整体PCE.
主要方法:
- 引入2D化石 (VML) 进入多,9,9-bis,3'-,N,N-二甲基) - 甲基-基-2,7-) - -2,7-,9,9-二氧化)) 双化物 (PFN-Br) CIL.
- 使用 PBDB-T:ITIC,PDINN 和 PNDIT-F3N 活性层制造具有 VML 合 CIL 的 OSC.
- 通过PCE测量来评估设备性能.
主要成果:
- 用VML染的PFN-Br CIL显著增加了PBDB-T:ITIC基于OSC的PCE,从10.87%增加到12.89%.
- 这种VML兴奋剂策略在不同的CIL材料中被证明是有效的,将PCE从10.21%提高到11.57% (PDINN) 和9.82%提高到11.27% (PNDIT-F3N).
- 由于改善了CIL-NFA相互作用,观察到更高的电子提取效率.
结论:
- 将VML纳入CIL是一个可行的策略,用于设计高效的电子传输层.
- 这种方法有效地提高了收费率,并促进了高性能非富勒伦OSC中的PCE.
- 这些发现为有机太阳能电池技术的商业化提供了有希望的途径.
更多相关视频
11:38Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance
Published on: February 27, 2017
18.5K
06:49In 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
6.3K
相关概念视频
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...
The Electrical Double Layer
In the region where two bulk phases meet, an intricate electric charge distribution arises due to charge transfer, ion adsorption, molecular orientation, and charge distortion. This complex distribution is commonly referred to as the electrical double layer.When a solid electrode interfaces with ions in an electrolyte solution, the speed of electron transfer dictates the rates of oxidation and reduction. The electrode acquires a charge through the escape of atoms into the solution as cations or...
