在基于二进制离子液体的感应性介面光学太阳能电池中进行电荷分离和高效的光能转换.
Peng Wang1, Bernard Wenger, Robin Humphry-Baker
1Laboratory for Photonics and Interfaces, Swiss Federal Institute of Technology, CH-1015 Lausanne, Switzerland.
Journal of the American Chemical Society
|May 5, 2005
概括
研究人员使用一种新型离子液体电解质和一种复合物 (Z-907Na) 在半透镜太阳能电池中实现了7.4%的功率转换效率. 高酸度对于高效的染料再生和最佳的太阳能电池性能至关重要.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 太阳能光伏发电是如何实现的
背景情况:
- 中等光学太阳能电池为可再生能源发电提供了一个有希望的途径.
- 离子液体电解质正在探索,以提高太阳能电池的稳定性和效率.
- 复合物被广泛用作染料敏感化太阳能电池中的敏感化剂.
研究的目的:
- 为了评估一个新型的介视太阳能电池的性能,利用二元离子液体电解质和特定的复合物 (Z-907Na).
- 调查化度对染料再生和电荷重组动态的影响.
- 了解纯化溶液中光电流的限制因素.
主要方法:
- mesoscopic太阳能电池的制造和光伏性能测试.
- 超微电极电压测量用于研究电化学动力学.
- 纳米秒激光短暂吸收光谱检测激发状态动态.
- 在电解质中的化度变化.
主要成果:
- 在 AM 1.5 阳光下,实现了 7.4% 的功率转换效率.
- 发现高酸盐度对于高效的染料再生至关重要,超越了电荷重组的竞争.
- 在纯化物化物中观察到快速但无效的还原性火路径,导致光电流较低.
结论:
- 开发的二进制离子液体电解质和Z-907Na复合物使得高效的美索斯科普太阳能电池运行成为可能.
- 优化化度对于通过促进染料再生来最大限度地提高太阳能电池效率至关重要.
- 了解和减轻非生产性的火途径是进一步提高太阳能电池性能的关键.
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
10:19Solution-Processed "Silver-Bismuth-Iodine" Ternary Thin Films for Lead-Free Photovoltaic Absorbers
Published on: September 27, 2018
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...
