Al2O3 的 ALD 沉积循环对 FTO 基染料敏化太阳能电池形态和性能的影响

IF 2.9 3区 材料科学 Q2 MATERIALS SCIENCE, COATINGS & FILMS Coatings Pub Date : 2024-08-11 DOI:10.3390/coatings14081019
Elizabeth Adzo Addae, Wojciech Sitek, Marek Szindler, Mateusz Fijalkowski, Krzysztof Matus
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引用次数: 0

摘要

在染料敏化太阳能电池(DSSC)中,被归类为透明导电氧化物(TCO)的材料具有同时导电和透光的能力。透明导电氧化物兼具出色的光学透明度和导电性,因此成为 DSSC 透明电极的热门选择。本实验采用了氟化锡氧化物(FTO)。由于 TCO 经常暴露在恶劣的环境中,可能会发生老化,因此其光学和电气特性可能会受到负面影响。在 TCO 上涂覆钝化层可提高其性能、稳定性和抵御环境因素(包括氧气、湿气和化学污染物)的能力。由于氧化铝(Al2O3)具有优异的介电性能、较强的化学稳定性以及与 TCO 材料的适用性,因此被用作 FTO 的钝化层。在这项研究工作中,Al2O3 通过原子层沉积(ALD)形成薄的介孔层,作为光阳极(工作电极)的钝化剂。这项工作的重点是找到适当厚度的 Al2O3,以实现染料敏化太阳能电池的最佳性能。太阳能模拟和薄片电阻分析清楚地表明,200 个周期的 Al2O3 表现出 4.31% 的效率,这是最高效的性能。对所有样品的表面形态和形貌进行了讨论和分析。
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Effects of ALD Deposition Cycles of Al2O3 on the Morphology and Performance of FTO-Based Dye-Sensitized Solar Cells
In dye-sensitized solar cells (DSSCs), materials classified as Transparent Conducting Oxides (TCOs) have the capacity to conduct electricity and transmit light at the same time. Their exceptional blend of optical transparency and electrical conductivity makes them popular choices for transparent electrodes in DSSCs. Fluorine Tin Oxide (FTO) was utilized in this experiment. The optical and electrical characteristics of TCOs may be negatively impacted by their frequent exposure to hostile environments and potential for deterioration. TCOs are coated with passivating layers to increase their performance, stability, and defense against environmental elements including oxygen, moisture, and chemical pollutants. Because of its superior dielectric qualities, strong chemical stability, and suitability with TCO materials, aluminum oxide (Al2O3) was utilized as a passivating layer for the FTO. In this research work, Al2O3 was deposited via atomic layer deposition (ALD) to form thin mesoporous layers as a passivator in the photoanode (working electrode). The work focuses on finding an appropriate thickness of Al2O3 for optimum performance of the dye-sensitized solar cells. The solar simulation and sheet resistance analysis clearly showed 200 cycles of Al2O3 to exhibit an efficiency of 4.31%, which was the most efficient performance. The surface morphology and topography of all samples were discussed and analyzed.
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来源期刊
Coatings
Coatings Materials Science-Surfaces, Coatings and Films
CiteScore
5.00
自引率
11.80%
发文量
1657
审稿时长
1.4 months
期刊介绍: Coatings is an international, peer-reviewed open access journal of coatings and surface engineering. It publishes reviews, research articles, communications and technical notes. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. Full experimental and/or methodical details must be provided. There are, in addition, unique features of this journal: * manuscripts regarding research proposals and research ideas will be particularly welcomed * electronic files or software regarding the full details of the calculation and experimental procedure - if unable to be published in a normal way - can be deposited as supplementary material
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