法南罗林-卡博隆接口抑制了与活性层的化学相互作用,使得有机太阳能电池长期稳定
Xue Lai1,2, Shiyan Chen2, Xiaoyu Gu3
1School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China.
Nature communications
|June 15, 2023
概括
新的阴极接口材料,双-phenanthroline-carbolong,将有机太阳能电池的效率提高到18.2%,并提高设备的稳定性. 这些材料还可以实现高效的矿/有机双联太阳能电池.
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) 面临的挑战是界面化学反应,限制了效率和稳定性.
- 开发有效的阴极接口材料对于高性能和持久的OSC至关重要.
研究的目的:
- 为了合成新的阴极接口材料,基于phenanthroline和carbolong单位.
- 研究这些新材料对有机太阳能电池性能和稳定性的影响.
- 探索它们在矿/有机双联太阳能电池中的应用.
主要方法:
- 通过将芬安索林与卡博隆单元连接,合成两个阴极接口材料.
- 使用合成材料制造和描述基于D18:L8-BO的有机太阳能电池.
- 在各种条件下 (黑暗,高温,照明) 测试稳定性.
- 集成到矿/有机双联太阳能电池中.
主要成果:
- 基于D18:L8-BO的OSC在使用双芬罗林-卡博隆材料时实现了18.2%的最高效率.
- 双相罗林-卡博隆材料表现出卓越的界面稳定性,抑制了与接受器的反应.
- 设备在黑暗N2下2170h保持了80%的初始效率,在85°C下96h,在2200h照明后保持68%的初始效率.
- 矿/有机双联太阳能电池实现了21.7%的效率,具有出色的热稳定性.
结论:
- 双氨酸-碳是一种高效的阴极接口材料,用于稳定高效的有机太阳能电池.
- 它的特性,包括固体阻碍和电子吸收能力,是抑制界面反应的关键.
- 这些材料对制造稳定高效的太阳能设备,包括并联架构,显示出显著的前景.
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
6.3K
14:37Ambient Method for the Production of an Ionically Gated Carbon Nanotube Common Cathode in Tandem Organic Solar Cells
Published on: November 5, 2014
9.5K
相关概念视频
Stability of Conjugated Dienes
3.4K
Introduction
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.
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.
3.4K
π Molecular Orbitals of 1,3-Butadiene
9.3K
Conjugated dienes have lower heats of hydrogenation than cumulated and isolated dienes, making them more stable. The enhanced stabilization of conjugated systems can be understood from their π molecular orbitals.
The simplest conjugated diene is 1,3-butadiene: a four-carbon system where each carbon is sp2-hybridized and has an unhybridized p orbital that contains an unpaired electron. According to molecular orbital theory, atomic orbitals combine to form molecular orbitals such that the number...
The simplest conjugated diene is 1,3-butadiene: a four-carbon system where each carbon is sp2-hybridized and has an unhybridized p orbital that contains an unpaired electron. According to molecular orbital theory, atomic orbitals combine to form molecular orbitals such that the number...
9.3K
P-N junction
590
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...
590
Stability of Substituted Cyclohexanes
12.7K
This lesson discusses the stability of substituted cyclohexanes with a focus on energies of various conformers and the effect of 1,3-diaxial interactions.
The two chair conformations of cyclohexanes undergo rapid interconversion at room temperature. Both forms have identical energies and stabilities, each comprising equal amounts of the equilibrium mixture. Replacing a hydrogen atom with a functional group makes the two conformations energetically non-equivalent.
For example, in...
The two chair conformations of cyclohexanes undergo rapid interconversion at room temperature. Both forms have identical energies and stabilities, each comprising equal amounts of the equilibrium mixture. Replacing a hydrogen atom with a functional group makes the two conformations energetically non-equivalent.
For example, in...
12.7K
Carbocations
11.4K
Carbocations are one of the reaction intermediates formed during several nucleophilic substitutions or elimination reactions. A carbocation is an electron-deficient species with the central carbon atom having six electrons and three bonded atoms. The central carbon in a carbocation is sp2 hybridized with trigonal planar geometry. It has an empty p orbital perpendicular to the plane of the structure that can accept electrons. Thus, carbocations act as strong electrophiles and may react with any...
11.4K
Structures of Carboxylic Acid Derivatives
2.7K
Structure of Carboxylic Acid Derivatives
Carboxylic acid derivatives contain an acyl group attached to a heteroatom such as chlorine, oxygen, or nitrogen. The carbonyl carbon and oxygen are both sp2-hybridized with an unhybridized p orbital.
The three sp2 orbitals of the carbonyl carbon form three σ bonds, one each with the carbonyl oxygen, the α carbon, and the heteroatom, whereas the other two sp2 orbitals of the carbonyl oxygen are occupied by the lone pairs. Further, the...
Carboxylic acid derivatives contain an acyl group attached to a heteroatom such as chlorine, oxygen, or nitrogen. The carbonyl carbon and oxygen are both sp2-hybridized with an unhybridized p orbital.
The three sp2 orbitals of the carbonyl carbon form three σ bonds, one each with the carbonyl oxygen, the α carbon, and the heteroatom, whereas the other two sp2 orbitals of the carbonyl oxygen are occupied by the lone pairs. Further, the...
2.7K
