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Hierarchical NiO/CMK-3 Photocathode for a p-Type Dye-Sensitized Solar Cell with Improved Photoelectrochemical Performance and Fast Hole Transfer
Molecules ( IF 4.6 ) Pub Date : 2020-04-02 , DOI: 10.3390/molecules25071638
Jie Qu 1 , Zhaoyang Fan 2 , Hamed Mira 3 , Jianan Wang 2, 4 , Amor M Abdelkader 5 , Shujiang Ding 2
Affiliation  

The sluggish photoelectrochemical performance of p-type dye-sensitized solar cells (p-DSSCs) has hindered its commercial use. In this work, we introduce a novel hierarchical nanocomposite of NiO nanoparticles anchored on highly ordered mesoporous carbons CMK-3 (NiO/CMK-3). Using CMK-3 as a backbone effectively prevented the self-aggregation of NiO nanoparticles and subsequently increased the total specific surface area of the composite for more dye adsorption. The interconnected conductive networks of CMK-3 also served as a split-flow high-speed channel, which was beneficial for hole spin-flow to accelerate hole transfer. The hierarchical NiO/CMK-3 photocathode improved the photovoltaic conversion efficiency to 1.48% in a cell with a Cobalt(II)/(III) electrolyte and a PMI-6T-TPA dye.

中文翻译:

用于具有改进光电化学性能和快速空穴转移的 p 型染料敏化太阳能电池的分层 NiO/CMK-3 光电阴极

p型染料敏化太阳能电池(p-DSSCs)缓慢的光电化学性能阻碍了其商业应用。在这项工作中,我们介绍了一种新型的 NiO 纳米颗粒分层纳米复合材料,其锚定在高度有序的介孔碳 CMK-3 (NiO/CMK-3) 上。使用 CMK-3 作为骨架有效地防止了 NiO 纳米粒子的自聚集,并随后增加了复合材料的总比表面积,以实现更多的染料吸附。CMK-3 的互连导电网络还充当分流高速通道,有利于空穴自旋流加速空穴转移。分层 NiO/CMK-3 光电阴极将具有钴 (II)/(III) 电解质和 PMI-6T-TPA 染料的电池中的光伏转换效率提高到 1.48%。
更新日期:2020-04-02
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