Dendritic Effects on Structure and Photophysical and Photoelectrochemical Properties of Fullerene Dendrimers and Their Nanoclusters
Dendritic Effects on Structure and Photophysical and Photoelectrochemical Properties of Fullerene Dendrimers and Their Nanoclusters
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DOI：
10.1021/jp066730w
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发表时间：
2007-01
影响因子：
3.7
通讯作者：
Kohei Hosomizu;H. Imahori;U. Hahn;J. Nierengarten;A. Listorti;N. Armaroli;T. Nemoto;S. Isoda
中科院分区：
文献类型：
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作者：
Kohei Hosomizu;H. Imahori;U. Hahn;J. Nierengarten;A. Listorti;N. Armaroli;T. Nemoto;S. Isoda
合成了多富勒烯末端树枝状大分子Gn（n = 1−5），并研究了富勒烯树枝状大分子及其纳米团簇的结构、物理和光电化学性质。当富勒烯树枝状聚合物的甲苯溶液注入乙腈中时，富勒烯树枝状聚合物形成簇。动态光散射和原子力和扫描电子显微镜的测量结果表明，这些簇的大小随代数的树枝状大分子。通过向电极施加DC电压，将带负电荷的团簇电沉积到纳米结构的SnO 2涂覆的ITO电极上。在溶解有0.5M LiI和0.01M I2的乙腈中进行光电化学测量，其中标准的三个电极包含富勒烯树枝状聚合物修饰的SnO 2工作电极、作为对电极的铂丝和作为参比电极的I-/I3-。的入射光子-光电流效率的…
Multifullerene-terminated dendrimers Gn (n = 1−5) were synthesized and structural, photophysical, and photoelectrochemical properties were studied for the fullerene dendrimers and their nanoclusters. The fullerene dendrimers formed clusters when toluene solutions of the fullerene dendrimers were injected into acetonitrile. Dynamic light scattering and atomic force and scanning electron microscopic measurements on these clusters revealed that the cluster size decreased with increasing the generation number of the dendrimers. The negatively charged clusters were deposited electrophoretically onto a nanostructured SnO2-coated ITO electrode by applying DC voltage to the electrode. Photoelectrochemical measurements were carried out in acetonitrile dissolved 0.5 M LiI and 0.01 M I2 with the standard three electrodes containing the fullerene dendrimer-modified SnO2 working electrode, a platinum wire as a counter electrode, and I-/I3- as a reference electrode. An incident photon-to-photocurrent efficiency of the ...