三级有机太阳能电池中的第三个组件的双重功能:扩大光谱并优化形态
Jiangang Liu1, Xingpeng Liu1, Jingming Xin1
1School of Electronics and Information, Northwestern Polytechnical University, Xi'an, 710129, China.
Small (Weinheim an der Bergstrasse, Germany)
|January 30, 2024
概括
三级有机太阳能电池 (T-OSCs) 显示出高效率的前景. 双功能第三组件通过优化形态和扩大光谱范围来提高性能,克服三元混合物的挑战.
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:
- 三级有机太阳能电池 (T-OSC) 正在获得高性能应用的关注.
- 最近的T-OSC实现了超过19%的功率转换效率 (PCE).
研究的目的:
- 本综述讨论了T-OSC中的第三个组件的作用.
- 它解决了控制活性层形态和性能限制的挑战.
主要方法:
- 该审查分析了第三个组件对光谱范围扩展的影响.
- 它详细介绍了第三组件如何优化活性层结晶性,分子堆叠,相位分离和分子方向.
主要成果:
- 双功能的第三个组件扩大了光谱吸收.
- 这些成分改善了活性层的形态,包括结晶性,相位分离和分子方向.
结论:
- 第三个组成部分对于提高T-OSC性能至关重要.
- 未来的研究应该专注于进一步优化双功能组件,以提高效率和稳定性.
更多相关视频
08:29Morphology Control for Fully Printable Organic–Inorganic Bulk-heterojunction Solar Cells Based on a Ti-alkoxide and Semiconducting Polymer
Published on: January 10, 2017
9.1K
14:37Ambient Method for the Production of an Ionically Gated Carbon Nanotube Common Cathode in Tandem Organic Solar Cells
Published on: November 5, 2014
9.4K
相关概念视频
P-N junction
534
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...
534
The Antenna Complex
6.0K
Plants and other photosynthetic organisms comprise pigments capable of absorption of direct sunlight. These pigments are present in the reaction center - the main site of photochemical reactions as well as in the antenna complex. Under average light conditions, the rate at which reaction center pigments absorb light is far below the electron transport chain's capacity. As a result, the reaction center alone cannot provide enough energy to drive photosynthesis. The photosynthetic efficiency...
6.0K
Photochemical Electrocyclic Reactions: Stereochemistry
1.8K
The absorption of UV–visible light by conjugated systems causes the promotion of an electron from the ground state to the excited state. Consequently, photochemical electrocyclic reactions proceed via the excited-state HOMO rather than the ground-state HOMO. Since the ground- and excited-state HOMOs have different symmetries, the stereochemical outcome of electrocyclic reactions depends on the mode of activation; i.e., thermal or photochemical.
Selection Rules: Photochemical Activation
Selection Rules: Photochemical Activation
1.8K
UV–Vis Spectroscopy of Conjugated Systems
7.0K
Organic compounds with conjugated double bonds show strong absorption features in the UV–visible region of the electromagnetic spectrum attributed to π → π* electronic excitations. Generally, a UV–vis absorption spectrum is recorded as a plot of absorbance vs wavelength. The wavelength of maximum absorbance, which manifests as a peak in the absorption spectrum, is denoted as λmax.
One of the factors influencing λmax is the extent...
One of the factors influencing λmax is the extent...
7.0K
Thermal and Photochemical Electrocyclic Reactions: Overview
2.3K
Electrocyclic reactions are reversible reactions. They involve an intramolecular cyclization or ring-opening of a conjugated polyene. Shown below are two examples of electrocyclic reactions. In the first reaction, the formation of the cyclic product is favored. In contrast, in the second reaction, ring-opening is favored due to the high ring strain associated with cyclobutene formation.
2.3K
