Development of new solar cell based on photosynthesis type double excitation

本研究的目的是开发基于有机和无机半导体复合材料双激发的太阳能电池的新概念，这与光合作用类似。与传统的太阳能电池相比，客观太阳能电池通过在有机和无机半导体中使用激发而具有高的电动势。对于无机半导体，我们发现水热法沉积的ZnO纳米管阵列具有较大的电动势，为0。5v辐照500w氙气块。另一方面，在各种有机染料中，酞菁和2-氨基蒽醌表现出较大的光电流。然而，对于2-氨基蒽醌，在1时电解分解。0 v。因此，太阳能电池的最佳染料是cu -酞菁。ZnO和cu -酞菁电极的组合显示0。开路电位7v，短路电流1mA/cm2。目前存在的问题是有机染料的电阻过高，因此对有机染料电极的改进可以提高新型太阳能电池的发电性能。本研究揭示了双激励的概念可用于高效率的太阳能电池。

Objective of this study is to develop new concept of solar cell based on double excitation in organic and inorganic semiconductor composite, that is similar with photosynthesis. In contrast to the conventional solar cell, the objective solar cell exhibits high electromotive forces by using excitation in organic and inorganic semiconductor. For the case of inorganic semiconductor, we found that ZnO nano tube array deposited by hydrothermal synthesis method shows large electromotive forces of 0. 5 V under irradiation of 500 W Xenon lump.On the other hand, among various organic dyes, it was found that Cuphthalocyanine and 2-amino anthraquinone shows relatively large photocurrent. However, in case of 2-amino anthraquinone is decomposed by electrolysis at 1. 0V. Therefore, the optimized dye for solar cell is Cu-phthalocyanine. Combination of ZnO and Cu-phthalocyanine electrodes shows 0. 7 V for open circuit potential and 1mA/cm2 short circuit current. The current issues is to high resistance of organic dye nd so improvement of organic dye electrode could improve the power generation property of new type solar cells. This study reveals that the concept of double excitation is used for solar cells with high efficiency.