当前位置: X-MOL 学术IEEE J. Photovolt. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Synthesis and Characterization of Cerium Oxide Impregnated Titanium Oxide Photoanodes for Efficient Dye-Sensitized Solar Cells
IEEE Journal of Photovoltaics ( IF 3 ) Pub Date : 2020-09-01 , DOI: 10.1109/jphotov.2020.3010232
Umer Mehmood , S. H. A. Ahmad , Amir Al-Ahmed , Abbas Saeed Hakeem , H. Dafalla , A. Laref

Cerium oxide (CeO2) nanoparticles (NPs) were mixed with titanium dioxide (TiO2) in different wt.% to obtain an improved composite photoanode with better electron-injection property. Using these composite photoanode materials, dye-sensitized solar cells were fabricated, and photovoltaic performances were evaluated. For performance comparison, a cell with pure TiO2 as a photoanode was also prepared. Devices fabricated using composite photoanodes with 1%, 3%, 5%, and 7% of CeO2 showed power conversion efficiency (PCE) of 7.0%, 5.68%, 5.64%, and 3.97%, respectively. Whereas, the cell with pure TiO2 as photoanode showed an efficiency of 3.35%. This enhanced PCE was attributed to the presence of CeO2 within the photoanode, which helps to reduce the charge recombination loss and improve photo-absorption. Eventually improved the open-circuit voltage and short-circuit current. Pure and composite photoanode samples were characterized for their optical and morphological properties. Homogeneous distribution of CeO2 NPs within the composites were confirmed by TEM analysis.

中文翻译:

用于高效染料敏化太阳能电池的氧化铈浸渍氧化钛光电阳极的合成和表征

将氧化铈 (CeO2) 纳米粒子 (NPs) 与不同重量百分比的二氧化钛 (TiO2) 混合,以获得具有更好电子注入性能的改进复合光电阳极。使用这些复合光阳极材料,制造了染料敏化太阳能电池,并评估了光伏性能。为了进行性能比较,还制备了以纯 TiO2 作为光阳极的电池。使用含有 1%、3%、5% 和 7% CeO2 的复合光阳极制造的器件的功率转换效率 (PCE) 分别为 7.0%、5.68%、5.64% 和 3.97%。而使用纯 TiO2 作为光阳极的电池显示出 3.35% 的效率。这种增强的 PCE 归因于光阳极内存在 CeO2,这有助于减少电荷复合损失并改善光吸收。最终提高了开路电压和短路电流。纯和复合光阳极样品的光学和形态特性被表征。TEM 分析证实了复合材料中 CeO2 NPs 的均匀分布。
更新日期:2020-09-01
down
wechat
bug