James Richard D, Alqahtani Linah S, Mallows John, Flint Heather V, Waddell Paul G, Woodford Owen J, Gibson Elizabeth A
Energy Materials Laboratory, Chemistry, School of Natural and Environmental Science, Newcastle University Newcastle upon Tyne NE1 7RU UK.
Department of Chemistry, College of Science, King Faisal University P.O Box 400 Al-Ahsa 31982 Saudi Arabia
Sustain Energy Fuels. 2023 Feb 21;7(6):1494-1501. doi: 10.1039/d2se00977c. eCollection 2023 Mar 14.
We report a push-pull BODIPY-based dye functionalised with an electronegative SF group at the position for applications in photocathodes in tandem dye-sensitized solar cells (DSSCs). The push-pull character enhances charge-transfer from the mesoporous NiO cathode surface towards the redox mediator. A Knoevenagel condensation reaction was used to introduce the carboxylic acid to anchor the dye to the oxide surface, a styryl linker which increases the conjugation in the molecule and shifts the absorption to the red. The room-temperature synthesis and high yields, make the dye promising for manufacture on a large scale. The dye was applied in p-DSSCs giving a power conversion efficiency (0.066%), a short circuit photocurrent ( ) of 3.84 mA cm, open circuit voltage ( ) of 58 mV and fill factor of 30%.
我们报道了一种基于推拉型BODIPY的染料，该染料在β位用带负电的SF基团进行功能化，用于串联染料敏化太阳能电池（DSSC）的光阴极。推拉特性增强了从介孔NiO阴极表面向氧化还原介质的电荷转移。采用Knoevenagel缩合反应引入羧酸，将染料锚定在氧化物表面，使用苯乙烯基连接体增加分子中的共轭并将吸收峰移至红色。室温合成及高产率使得该染料有望大规模制造。该染料应用于p型DSSC，功率转换效率为0.066%，短路光电流为3.84 mA/cm²，开路电压为5
