Abstract

The synthesis of new porphyrin complexes that can absorb light in a broad range of the spectrum is very important for getting a high efficiency in dye-sensitized solar cells. The primary reason for using these complexes is good photophysical characteristic like good absorption and high quantum efficiency. Most of the metal porphyrin shows good photophysical characteristics with changing their ligands. In this work, the synthesis of a new Zn-porphyrin complex, that has a good spectral and electrochemical characteristic, is reported. Then, this complex is used as a dye in dye-sensitized solar cells, using titanium dioxide as a semiconductor. The application of this complex in a dye-sensitized nanocrystalline TiO₂ solar cell has indicated a short circuit density of 11.60 mA, an open circuit potential of 0.65 V with an overall efficiency of 5.33%. The overall conversion efficiency of this system is due to the efficient electron injection into the conduction band during light absorption.

Graphic abstract

In this work, the synthesis of a new Zn-porphyrin complex, together with its spectral and electrochemical properties, is described. The application of this complex in a dye-sensitized nanocrystalline TiO₂ solar cell indicated a short circuit density of 11.60 mA, an open circuit potential of 0.65V with an overall efficiency of 5.33%.

中文翻译：

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基于新型卟啉配合物作为无机光敏剂的高效染料敏化太阳能电池

摘要

能够吸收宽光谱范围内的光的新卟啉配合物的合成对于在染料敏化太阳能电池中获得高效率非常重要。使用这些配合物的主要原因是良好的光物理特性，如良好的吸收和高量子效率。多数金属卟啉通过改变其配体表现出良好的光物理特性。在这项工作中，报道了具有良好的光谱和电化学特性的新型锌-卟啉配合物的合成。然后，使用二氧化钛作为半导体，将该络合物用作染料敏化太阳能电池中的染料。该络合物在染料敏化纳米TiO _{2中的应用}太阳能电池的短路密度为11.60 mA，开路电势为0.65 V，总效率为5.33％。该系统的总转换效率是由于在吸收光期间有效地将电子注入导带。

图形摘要

在这项工作中，描述了一种新的锌卟啉配合物的合成，以及其光谱和电化学性质。该配合物在染料敏化纳米晶TiO ₂太阳能电池中的应用表明短路密度为11.60 mA，开路电势为0.65V，总效率为5.33％。