College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China.
Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, State Key Laboratory of Electrical Insulation and Power Equipment, Department of Applied Chemistry, School of Science, Xi'an Jiaotong University, Xi'an 710049, China.
Molecules. 2020 Apr 2;25(7):1638. doi: 10.3390/molecules25071638.
The sluggish photoelectrochemical performance of -type dye-sensitized solar cells (-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.
型染料敏化太阳能电池（-DSSCs）的光电化学性能缓慢，阻碍了其商业化应用。在这项工作中，我们引入了一种新型的 NiO 纳米粒子锚定在高度有序介孔碳 CMK-3（NiO/CMK-3）上的分层纳米复合材料。使用 CMK-3 作为骨架可以有效地防止 NiO 纳米粒子的自聚集，从而增加复合材料的总比表面积，以增加更多的染料吸附。CMK-3 的互连导电网络还充当了分流高速通道，有利于空穴自旋流加速空穴转移。分层 NiO/CMK-3 光阴极在使用钴（II）/（III）电解质和 PMI-6T-TPA 染料的电池中，将光伏转换效率提高到 1.48%。
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