The effect of applying lead ion to the surface of TiO2 on dye-adsorption rate and photovoltaic properties of solar cells

IF 5.9 3区 工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY Journal of Industrial and Engineering Chemistry Pub Date : 2024-07-29 DOI:10.1016/j.jiec.2024.07.050
Miran Kim, Kyeong Ho Ryu, Soo Bin Kim, Ju Hee Gu, Chang Sub Kwak, Ki Hong Kim, Yoon Soo Han
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Abstract

Lead ion was incorporated into TiO layers prepared on an F-doped tin oxide (FTO) substrate. The resulting electrodes (Pb-TiO/FTO) were sensitized with N719 dye and put to use in dye-sensitized solar cells (DSCs). Owing to the electrostatic attraction between the positively charged TiO and the carboxylate anions (–COO) in the N719 dye, more dye was adsorbed into the Pb-TiO/FTO, which required only 2 h for sensitization, than in a reference TiO/FTO electrode that was sensitized for 8 h. The power conversion efficiency of a DSC with the Pb-TiO/FTO rose to 10.01 % over the efficiency (9.29 %) of the reference device. It was found that the increased dye adsorption in the Pb-TiO/FTO allowed the cells to more efficiently harvest light and collect electrons, resulting in a higher short-circuit current in the DSC. The larger amount of dye also induced a higher open-circuit voltage in the cell by increasing the total number of photoinjected electrons and prolonging their lifetime.
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在 TiO2 表面施加铅离子对太阳能电池染料吸附率和光伏特性的影响
在掺杂 F 的氧化锡(FTO)基底上制备的氧化钛层中加入了铅离子。所制备的电极(Pb-TiO/FTO)经 N719 染料敏化后可用于染料敏化太阳能电池(DSC)。由于带正电荷的 TiO 与 N719 染料中的羧酸阴离子 (-COO) 之间的静电吸引力,Pb-TiO/FTO(仅需 2 小时敏化)吸附的染料比敏化 8 小时的参考 TiO/FTO 电极多。研究发现,Pb-TiO/FTO 中染料吸附量的增加使电池能够更有效地收集光和电子,从而提高了 DSC 的短路电流。更多的染料还通过增加光注入电子的总数和延长其寿命,在电池中产生更高的开路电压。
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来源期刊
CiteScore
10.40
自引率
6.60%
发文量
639
审稿时长
29 days
期刊介绍: Journal of Industrial and Engineering Chemistry is published monthly in English by the Korean Society of Industrial and Engineering Chemistry. JIEC brings together multidisciplinary interests in one journal and is to disseminate information on all aspects of research and development in industrial and engineering chemistry. Contributions in the form of research articles, short communications, notes and reviews are considered for publication. The editors welcome original contributions that have not been and are not to be published elsewhere. Instruction to authors and a manuscript submissions form are printed at the end of each issue. Bulk reprints of individual articles can be ordered. This publication is partially supported by Korea Research Foundation and the Korean Federation of Science and Technology Societies.
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