Supramolecular Photovoltaic Cells Based on Composite Molecular Nanoclusters: Dendritic Porphyrin and C60, Porphyrin Dimer and C60, and Porphyrin−C60 Dyad
Supramolecular Photovoltaic Cells Based on Composite Molecular Nanoclusters: Dendritic Porphyrin and C60, Porphyrin Dimer and C60, and Porphyrin−C60 Dyad
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DOI：
10.1021/jp048404r
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发表时间：
2004-08
影响因子：
3.3
通讯作者：
Taku Hasobe;P. Kamat;Mark A. Absalom;Y. Kashiwagi;J. Sly;M. Crossley;Kohei Hosomizu;H. Imahori;S. Fukuzumi
中科院分区：
文献类型：
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作者：
Taku Hasobe;P. Kamat;Mark A. Absalom;Y. Kashiwagi;J. Sly;M. Crossley;Kohei Hosomizu;H. Imahori;S. Fukuzumi
新型有机太阳能电池已被制备使用卟啉树枝状大分子（供体）和富勒烯（受体）染料单元组装在SnO 2电极的分子簇。具有树枝状结构的卟啉和富勒烯的分子簇表现出可控的尺寸和形状，与TEM图像中没有树枝状结构的参考系统（卟啉二聚体和卟啉-富勒烯二联体）形成对比，其显示出相当不规则和较小的簇。在乙腈/甲苯混合溶剂中制备的树枝状卟啉和富勒烯复合分子纳米团簇对可见光的吸收范围覆盖整个光谱。通过对卟啉-富勒烯复合分子团簇与卟啉-C60共价键分子团簇光电化学性质的比较，说明了网络中的互穿结构对有效传输空穴和电子的重要性.此外，有机光伏电池使用簇的超分子复合物的V形…
Novel organic solar cells have been prepared using molecular clusters of porphyrin dendrimer (donor) and fullerene (acceptor) dye units assembled on SnO2 electrodes. The molecular clusters of porphyrin with dendritic structure and fullerene exhibit controlled size and shape in contrast with the reference systems (a porphyrin dimer and a porphyrin−fullerene dyad) without dendritic structure in TEM images, which show rather irregular and smaller clusters. The composite molecular nanoclusters of dendritic porphyrin and fullerene prepared in acetonitrile/toluene mixed solvent absorb light over entire spectrum of visible light. The comparison of photoelectrochemical properties of composite molecular cluster of porphyrin and fullerene with that of molecular cluster of porphyrin−C60 dyad with covalent linkage shows the importance of interpenetrating structure in each network to transport hole and electron efficiently. Furthermore, organic photovoltaic cells using clusters of supramolecular complexes of V-shaped ...