Novel D–π–A dye as a co-sensitizer of indoline and benzothiadiazole dyes to enhance photovoltaic performance of dye-sensitized solar cells

IF 4.1 3区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Photochemistry and Photobiology A-chemistry Pub Date : 2024-08-20 DOI:10.1016/j.jphotochem.2024.115977

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Abstract

A novel D–π–A type of dye (BIM33) comprising diphenylamine as electron donor, diphenylacridine as a π-bridge and cyanoacrylic acid as an anchoring unit has been synthesized and used as sensitizer and co-sensitizer in dye-sensitized solar cells (DSSCs). The DSSC based on BIM33 achieved a power conversion efficiency (PCE) of 3.19 % under one sun (AM 1.5G). To improve the photovoltaic performance of the DSSCs, this orange dye was also co-sensitized with red benzothiadiazole (C1) and purple indoline (D205) organic dyes. The DSSCs based on co-sensitizers BIM33/D205 and BIM33/C1 showed superior PCEs of 6.57 % (J_SC = 13.69 mA cm⁻², V_OC = 0.766 V, and FF = 0.63) and 6.82 % (J_SC = 14.47 mA cm⁻², V_OC = 0.722 V, and FF = 0.65), respectively, exhibiting significant improvements of 28 % and 36 % compared to the DSSCs based on D205 and C1, respectively. The high photovoltaic performance of the co-sensitized DSSCs may be explained by the broader visible light absorption and a denser packing of the dyes on the TiO₂ surface.

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新型 D-π-A 染料作为吲哚啉和苯并噻二唑染料的共敏化剂，可提高染料敏化太阳能电池的光电性能

我们合成了一种新型 D-π-A 型染料（BIM33），它以二苯胺为电子供体，二苯基吖啶为π桥，氰基丙烯酸为锚定单元，可用作染料敏化太阳能电池（DSSC）中的敏化剂和助敏化剂。基于 BIM33 的 DSSC 在一个太阳（AM 1.5G）下的功率转换效率（PCE）达到了 3.19%。为了提高 DSSC 的光伏性能，这种橙色染料还与红色苯并噻二唑（C1）和紫色吲哚啉（D205）有机染料共敏化。与基于 D205 和 C1 的 DSSC 相比，基于共敏化剂 BIM33/D205 和 BIM33/C1 的 DSSC 的 PCE 分别为 6.57 %（JSC = 13.69 mA cm-2，VOC = 0.766 V，FF = 0.63）和 6.82 %（JSC = 14.47 mA cm-2，VOC = 0.722 V，FF = 0.65），显著提高了 28 % 和 36 %。共敏化 DSSC 的高光伏性能可能得益于更广泛的可见光吸收以及染料在 TiO2 表面更密集的堆积。

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来源期刊

Journal of Photochemistry and Photobiology A-chemistry 化学-物理化学

CiteScore

7.90

自引率

7.00%

发文量

580

审稿时长

48 days

期刊介绍： JPPA publishes the results of fundamental studies on all aspects of chemical phenomena induced by interactions between light and molecules/matter of all kinds. All systems capable of being described at the molecular or integrated multimolecular level are appropriate for the journal. This includes all molecular chemical species as well as biomolecular, supramolecular, polymer and other macromolecular systems, as well as solid state photochemistry. In addition, the journal publishes studies of semiconductor and other photoactive organic and inorganic materials, photocatalysis (organic, inorganic, supramolecular and superconductor). The scope includes condensed and gas phase photochemistry, as well as synchrotron radiation chemistry. A broad range of processes and techniques in photochemistry are covered such as light induced energy, electron and proton transfer; nonlinear photochemical behavior; mechanistic investigation of photochemical reactions and identification of the products of photochemical reactions; quantum yield determinations and measurements of rate constants for primary and secondary photochemical processes; steady-state and time-resolved emission, ultrafast spectroscopic methods, single molecule spectroscopy, time resolved X-ray diffraction, luminescence microscopy, and scattering spectroscopy applied to photochemistry. Papers in emerging and applied areas such as luminescent sensors, electroluminescence, solar energy conversion, atmospheric photochemistry, environmental remediation, and related photocatalytic chemistry are also welcome.