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Edge-oriented MoS2 aligned on cellular reduced graphene for enriched dye-sensitized solar cell photovoltaic efficiency
Frontiers of Materials Science ( IF 2.5 ) Pub Date : 2018-11-19 , DOI: 10.1007/s11706-018-0439-7
Infant Raj , Daniel Kigen , Wang Yang , Fan Yang , Yongfeng Li

The counter electrode (CE) prominence in dye-sensitized solar cells (DSSCs) is undisputed with research geared towards replacement of Pt with viable substitutes with exceptional conductivity and catalytic activity. Herein, we report the replaceable CE with better performance than that of Pt-based electrode. The chemistry between the graphene oxide and ice templates leads to cellular formation of reduced graphene oxide that achieves greater conductivity to the CE. The simultaneous growth of active edge-oriented MoS2 on the CE through CVD possesses high reflectivity. High reflective MoS2 trends to increase the electroactivity by absorbing more photons from the source to dye molecules. Thus, the synergistic effect of two materials was found to showcase better photovoltaic performance of 7.6% against 7.3% for traditional platinum CE.



中文翻译:

边缘导向的MoS2 在蜂窝状还原石墨烯上排列以提高染料敏化太阳能电池的光伏效率

染料敏化太阳能电池(DSSCs)中反电极(CE)的突出性是无可争议的,其研究旨在用具有优异电导率和催化活性的可行替代品替代Pt。在此,我们报告了可替换的CE,其性能优于基于Pt的电极。氧化石墨烯和冰模板之间的化学反应导致还原的氧化石墨烯的细胞形成,从而实现了对CE的更大导电性。通过CVD在CE上同时活性边缘取向的MoS 2的生长具有高反射率。高反射MoS 2趋势是通过从源到染料分子吸收更多的光子来增加电活性。因此,发现两种材料的协同作用显示出更好的光伏性能,为7.6%,而传统的铂金CE为7.3%。

更新日期:2018-11-19
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