结合式/非结合式联接模体接收器使高效和稳定的灵活有机太阳能电池成为可能
Haoran Yin1, Gang Xie1, Tuhong Wu1
1College of Chemistry and Chemical Engineering/Key Laboratory of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Jiangxi Normal University, 99 Ziyang Avenue, Nanchang, 330022, China.
研究人员开发了新的有机半导体,以提高有机太阳能电池 (OSC) 的稳定性和性能. 这些材料提高了薄膜形态和机械强度,为商业化灵活的OSC设备铺平了道路.
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:
- 有机太阳能电池 (OSC) 的商业化需要具有出色光伏性能和稳定的设备.
- 提高活性层膜的形态稳定性对于OSC设备的寿命至关重要.
研究的目的:
- 合成结合和非结合的二元受体 (DY-TVCl和DY-3T) 来提高分子玻璃过渡温度 (Tg).
- 提高灵活OSC的活性层薄膜的形态稳定性和机械强度.
主要方法:
- 结合二聚体受体DY-TVCl和非结合二聚体受体DY-3T的合成.
- 使用PM6作为捐赠材料制造二元混合膜和设备.
- 评估光伏性能,形态稳定性和机械性能 (裂纹发生应变).
- 在1太阳照明下进行加速寿命测试,以确定外推的T80寿命.
主要成果:
- 与小分子受容器相比,滴剂受容器提高了形态稳定性和机械强度.
- 该PM6:DY-TVCl二进制装置实现了18.01%的最大功率转换效率 (PCE).
- 额外推算的PM6:DY-TVCl和PM6:DY-3T设备的T80寿命分别为3091小时和2227小时,显著超过PM6:MY-BO设备 (809小时).
- 基于DY-TVCl和DY-3T的灵活设备的效率分别为15.23%和14.34%.
结论:
- 开发的二进制受体提供了一个有效的方法来增强OSC的稳定性和机械强度.
- 合成的材料确保有机半导体的可重复性,用于大规模生产.
- 这项研究有助于灵活有机太阳能电池的商业可行性.
更多相关视频
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
09:32Well-aligned Vertically Oriented ZnO Nanorod Arrays and their Application in Inverted Small Molecule Solar Cells
Published on: April 25, 2018
相关概念视频
Photochemical Electrocyclic Reactions: Stereochemistry
Selection Rules: Photochemical Activation
Stability of Conjugated Dienes
A comparison of the enthalpies of hydrogenation of dienes reveals that conjugated dienes release less heat on hydrogenation, rendering them more stable than their nonconjugated analogs.
Structure of Conjugated Dienes
Conjugated dienes are compounds characterized by the presence of alternating double and single bonds. In a conjugated system like 1,3-butadiene, the unhybridized 2p orbital on each carbon overlaps continuously, allowing the π electrons to be delocalized across the entire molecule. In contrast, this type of overlap does not occur in cumulated and isolated dienes, such as 2,3-pentadiene and 1,4-pentadiene, respectively. Instead, the π electrons remain localized between the double...
[4+2] Cycloaddition of Conjugated Dienes: Diels–Alder Reaction
Diels–Alder Reaction Forming Cyclic Products: Stereochemistry
Thermal Electrocyclic Reactions: Stereochemistry
Selection Rules: Thermal Activation
Conjugated systems containing an even number of π-electron pairs undergo a conrotatory ring closure. For example, thermal electrocyclization of (2E,4E)-2,4-hexadiene, a conjugated diene containing two π-electron pairs, gives trans-3,4-dimethylcyclobutene.
