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Fabrication of Ag nanoparticles adhered on RGO based on both electrodes in dye-sensitized solar cells (DSSCs)
Renewables: Wind, Water, and Solar Pub Date : 2020-03-03 , DOI: 10.1186/s40807-020-00058-3
Kongsak Pattarith , Yonrapach Areerob

The electrode plays an important role in dye-sensitized solar cells (DSSCs). Preparation of the electrode should be simple and should result in high performance of its DSSC. We herein demonstrated high-performance and easily prepared Silver nanoparticles adhered on Reduced graphene oxide–Platinum composites (Ag–RGO/Pt) as counter electrodes (CEs) and TiO2 on RGO sheets with Ag (TiO2–RGO/Ag) as photoanode (PE) in DSSCs. The 1:2 Ag–RGO/Pt CE and 0.5% TiO2–RGO/Ag PE showed an overall highest power conversion efficiency of 9.15% under (1.5 AM) solar irradiation. The optimal weight ratio of Ag:RGO:Pt materials was also examined. Moreover, we showed that incorporation of Ag nanoparticles into the counter electrode successfully improved interfacial charge transfer resulting in high electrocatalytic activity for the reduction of triiodide to iodide redox, which in turn could enhance the performance of the DSSCs.

中文翻译:

染料敏化太阳能电池(DSSC)中基于两个电极的RGO上粘附的Ag纳米颗粒的制备

电极在染料敏化太阳能电池(DSSC)中起着重要作用。电极的制备应简单易行,并应提高其DSSC的性能。我们在这里展示了高性能且易于制备的银纳米颗粒,该纳米颗粒粘附在还原的氧化石墨烯-铂复合材料(Ag-RGO / Pt)上作为对电极(CEs),而TiO2以银(TiO2-RGO / Ag)作为光阳极(PE )。1:2 Ag–RGO / Pt CE和0.5%TiO2–RGO / Ag PE在(1.5 AM)太阳辐射下显示出最高的总功率转换效率,为9.15%。还检查了Ag:RGO:Pt材料的最佳重量比。此外,我们发现,将Ag纳米粒子掺入反电极可成功改善界面电荷转移,从而产生高电催化活性,可将三碘化物还原为碘化物氧化还原,
更新日期:2020-03-03
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