一种不对称酞菁的合成及其在染料敏化太阳能电池中的应用
Syntheis of Asymmetrical Porphyrazinato Zinc Complex: An Efficient Near-IR Sensitizer for Dye-Sensitized Solar Cells
酞菁因其良好的光化学特点和氧化还原特征，并在紫外（Soret带）和近红外（Q带）区均有吸收，使得其适用于太阳能电池体系。但令人遗憾的是，大多数以酞菁染料为基础的太阳能电池的转化效率一直在1%徘徊，其原因可能是分子间的自聚过大以及常规对称酞菁激发态的电子缺少方向性。针对此问题，以6-羧基-2,3二氰基萘和4-叔丁基二氰基苯为原料，合成了一种不对称金属锌酞菁(ZnPc)的衍生物(Zn-tri-PcNc)，这种高度不对称的酞菁衍生物(Zn-tri-PcNc)由于其强的近红外响应使得用其组装的染料敏化太阳能电池在近红外区域的IPCE可以达到60.7%，模拟太阳光AM 1.5G(100mWcm-2)下转化效率达到3.56%。
Novel highly asymmetrical zinc phthalocyanine (ZnPc) derivatives (Zn-tri-PcNc) containing tribenzonaphtho-condensed porphyrazine with one carboxyl and three tert-butyl (tBu) peripheral substituents were synthesized by using 6-carboxymethyl-2,3-dicyanonaphthalene and 4-tBu-phthalonitrile as starting agents. The new highly asymmetrical ZnPcs were characterized by a wide range of spectroscopic methods and electrochemically studied. As sensitizer for TiO2-based dye-sensitized solar cells (DSSCs), the tBu groups in Zn-tri-PcNc can effectively retard the aggregation of Pc, and lead to a conversion efficiency (3.56%) under simulated AM 1.5G solar irradiation (100 mW/cm2). Moreover, Zn-tri-PcNc-1 displays 60.7% of the maximum incident mono-chromatic photon-to-current conversion efficiency (IPCE) in the red/near-IR region, indicating the potential of Zn-tri-PcNc as DSSC components.
林丽、彭天右、周宵乐、李仁杰、喻丽娟
染料工业燃料化学工业化学
太阳能电池酞菁染料
ye-Sensitized Solar CellsphthalocyanineDyes
林丽,彭天右,周宵乐,李仁杰,喻丽娟.一种不对称酞菁的合成及其在染料敏化太阳能电池中的应用[EB/OL].(2012-12-07)[2025-06-06].http://www.paper.edu.cn/releasepaper/content/201212-150.点此复制
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