Photovoltaic cells using composite nanoclusters of porphyrins and fullerenes with gold nanoparticles
Photovoltaic cells using composite nanoclusters of porphyrins and fullerenes with gold nanoparticles
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DOI：
10.1021/ja047768u
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发表时间：
2005-02-02
影响因子：
15
通讯作者：
Fukuzumi, S
中科院分区：
文献类型：
--
作者：
Hasobe, T;Imahori, H;Fukuzumi, S
新型的有机太阳能电池已被制备使用四元自组织卟啉（供体）和富勒烯（受体）单元通过簇合与金纳米粒子的纳米结构的SnO 2电极。首先，从主要组分（卟啉-烷硫醇盐）开始制备（二级组织）卟啉-烷硫醇盐单层保护的金纳米颗粒（H（2）PCnMPC：n是间隔基中亚甲基的数目）。这些卟啉修饰的金纳米颗粒与富勒烯分子形成复合物（三级组织），并且它们在乙腈/甲苯混合溶剂中聚集（四级组织）。然后使用电泳沉积方法将高度着色的复合物簇组装成三维阵列到纳米结构的SnO 2膜上，以提供OTE/SnO 2/（H（2）PCnMPC+C-60）（m）电极。该复合团簇薄膜具有高达54%的入射光-光电流转换效率（IPCE）和宽的光电流作用光谱（可达1000 nm）。OTE/SnO 2/（H（2）PC 15 MPC +C-60）复合电极的能量转换效率高达1.5%，是由卟啉和富勒烯两种单组分组成的参比体系的45倍。
Novel organic solar cells have been prepared using quaternary self-organization of porphyrin (donor) and fullerene (acceptor) units by clusterization with gold nanoparticles on nanostructured SnO2 electrodes. First, porphyrin-alkanethiolate monolayer-protected gold nanoparticles (H(2)PCnMPC: n is the number of methylene groups in the spacer) are prepared (secondary organization) starting from the primary component (porphyrin-alkanethiol). These porphyrin-modified gold nanoparticles form complexes with fullerene molecules (tertiary organization), and they are clusterized in acetonitrile/toluene mixed solvent (quaternary organization). The highly colored composite clusters can then be assembled as three-dimensional arrays onto nanostructured SnO2 films to afford the OTE/SnO2/(H(2)PCnMPC+C-60)(m) electrode using an electrophoretic deposition method. The film of the composite clusters with gold nanoparticle exhibits an incident photon-to-photocurrent efficiency (IPCE) as high as 54% and broad photocurrent action spectra (up to 1000 nm). The power conversion efficiency of the OTE/SnO2/(H(2)PC15MPC+C-60) composite electrode reaches as high as 1.5%, which is 45 times higher than that of the reference system consisting of the both single components of porphyrin and fullerene.