Roudgar-Amoli Mostafa, Alizadeh Amin, Abedini Ebrahim, Shariatinia Zahra
Department of Chemistry, Amirkabir University of Technology (Tehran Polytechnic) P.O. Box: 15875-4413 Tehran Iran
RSC Adv. 2023 May 15;13(22):14825-14840. doi: 10.1039/d3ra01595e.
To achieve high-performance dye-sensitized solar cells (DSSCs), it is essential to establish new and effective photoelectrode materials. Herein, we report the successful synthesis of heterojunctions including Cu-based delafossite oxide CuCoO and ZnO derived from zeolitic imidazolate framework-8 (ZIF-8). The layered polyhedral nanocrystals of CuCoO produced through a feasible low temperature hydrothermal process and the faceted nanocrystals of ZnO were achieved by heat treatment of ZIF-8. The composite heterostructures were applied as photoelectrodes in DSSCs assembled using dye N719 and a Pt counter electrode. The physicochemical characteristics (XRD, FESEM, EDAX, mapping, BET, DRS), dye loading, and photovoltaic properties (-, EIS, IPCE) of the fabricated materials were studied and fully discussed. Results revealed that addition of CuCoO to ZnO significantly improved the , , PCE, FF, and IPCE. Among all cells, CuCoO/ZnO (0.1 : 1) showed the best performance (PCE = 6.27%, = 14.56 mA cm, = 687.84 mV, FF = 62.67%, IPCE = 45.22%) and acted as a promising photoanode in DSSCs.
为了实现高性能染料敏化太阳能电池（DSSC），建立新型有效的光电极材料至关重要。在此，我们报告了成功合成包括基于铜的铜钴矿氧化物CuCoO和源自沸石咪唑酯骨架-8（ZIF-8）的ZnO的异质结。通过可行的低温水热法制备的CuCoO层状多面体纳米晶体以及通过ZIF-8热处理获得的ZnO多面纳米晶体。复合异质结构被用作使用染料N719和铂对电极组装的DSSC中的光电极。对所制备材料的物理化学特性（XRD、FESEM、EDAX、映射、BET、DRS）、染料负载量和光伏特性（-、EIS、IPCE）进行了研究并充分讨论。结果表明，向ZnO中添加CuCoO显著提高了、、光电转换效率（PCE）、填充因子（FF）和短路电流密度（IPCE）。在所有电池中，CuCoO/ZnO（0.1∶1）表现出最佳性能（PCE = 6.27%，= 14.56 mA cm，= 687.84 mV，FF = 62.67%，IPCE = 45.22%），并在DSSC中作为有前景的光阳极。
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