Molecular engineering of low-cost, efficient, and stable photosensitizers for dye-sensitized solar cells
Molecular engineering of low-cost, efficient, and stable photosensitizers for dye-sensitized solar cells
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DOI：
10.1016/j.chempr.2023.08.013
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发表时间：
2023-09
期刊：
影响因子：
23.5
通讯作者：
Zhongjin Shen;F. Eickemeyer;Jing Gao;L. Pfeifer;David Bradford;Marina Freitag;S. Zakeeruddin;M. Grätzel
中科院分区：
文献类型：
--
作者：
Zhongjin Shen;F. Eickemeyer;Jing Gao;L. Pfeifer;David Bradford;Marina Freitag;S. Zakeeruddin;M. Grätzel
光敏剂的成本、稳定性和光伏性能在染料敏化太阳能电池（DSC）的商业化中起着关键作用。本文中，基于高压染料MS 5的简单化学结构，通过分别用2-氰基苯甲酸、苯基-氰基丙烯酸和乙炔基-苯基-氰基丙烯酸锚定基团取代苯甲酸锚定基团，描述了三种称为P110、P111和P112的新型敏化剂。通过染料结构的工程设计，在标准AM1.5 G条件下，基于Al 2 O3 12的器件显示出10.7%的最佳效率，具有12.26 mA cm− 2的改进光电流和1.18 V的出色光电压。此外，在这项工作中开发的染料DSCs 12的低合成成本（低于100 $ g−1）是一个有吸引力的特征，促进了基于高效和稳定敏化剂的DSC的市场开发。
The cost, stability, and photovoltaic performance of photosensitizers play a key role in the commercialization of dye-sensitized solar cells (DSCs). Herein, three novel sensitizers termed ZS10, ZS11, and ZS12 are described based on the simple chemical structure of the high-voltage dye MS5, by replacing the benzoic-acid-anchoring group with a 2-cyanobenzoic acid, phenyl-cyanoacrylic acid, and ethynyl-phenyl-cyanoacrylic-acid-anchoring group, respectively. Through engineering of the dye structure, ZS12-based devices show the best efficiency of 10.7% under standard AM1.5 G conditions, with an improved photocurrent of 12.26 mA cm−2and an outstanding photovoltage of 1.18 V. Remarkably, ZS12-sensitized solar cells exhibit excellent stability, maintaining 95% of its initial PCE under full sunlight for 800 h. Moreover, the low synthesis cost of dye ZS12 (less than 100 $ g−1) developed in this work is an attractive feature, facilitating the market development of DSCs based on efficient and stable sensitizers.