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首页> 外文会议>Active Photonic Crystals; Proceedings of SPIE-The International Society for Optical Engineering; vol.6640 >Enhanced Power Conversion Efficiency in Solar Cells Coupled to Photonic Crystals
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Enhanced Power Conversion Efficiency in Solar Cells Coupled to Photonic Crystals

机译：耦合至光子晶体的太阳能电池的功率转换效率提高

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摘要

The light harvesting enhancement observed when photonic colloidal crystals are integrated in dye sensitized titanium oxide solar cells is investigated herein. Such absorptance increment is explained in terms of slow photon propagation at certain ranges of wavelengths lying within the photonic pseudogap and partial localization in an absorbing layer placed onto the colloidal lattice. Based on those findings, not only recently reported experiments have been satisfactorily explained, but also new optical designs for the dye-sensitized solar cells (DSSC) are proposed. The new arrangement consists of piling up different lattice constant crystals leading to light harvesting enhancement in the whole dye absorption range. We provide the optimum structural features of such photonic crystal multilayer needed to achieve a photocurrent efficiency enhancement of around 60% with respect to standard dye-sensitized solar cells.
机译：本文研究了将光子胶体晶体整合到染料敏化的二氧化钛太阳能电池中时观察到的光收集增强。这种吸收率的增加是根据光子在伪光子隙内一定波长范围内的缓慢光子传播以及位于胶体晶格上的吸收层中的局部定位来解释的。基于这些发现，不仅令人满意地解释了最近报道的实验，而且提出了用于染料敏化太阳能电池（DSSC）的新光学设计。新的布置包括堆积不同的晶格常数晶体，从而在整个染料吸收范围内增强光收集。我们提供了此类光子晶体多层的最佳结构特征，相对于标准的染料敏化太阳能电池，该多层结构可实现约60％的光电流效率提升。

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