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首页> 外文期刊>RSC Advances >Promotional effect of silver nanoparticles on the performance of N-doped TiO2 photoanode-based dye-sensitized solar cells
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Promotional effect of silver nanoparticles on the performance of N-doped TiO2 photoanode-based dye-sensitized solar cells

机译：银纳米颗粒对N掺杂TiO2光阳极基染料敏化太阳能电池性能的促进作用

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摘要

We report the first successful application of an N-TiO2-Ag nanocomposite as an efficient photoanode for highly efficient dye-sensitized solar cells (DSSC). The N-TiO2-Ag nanocomposites with different Ag contents were prepared using a simple chemical reduction method and characterized using various suitable techniques. The DSSC assembled with the N-TiO2-Ag-modified photoanode demonstrated an enhanced solar-to-electrical energy conversion efficiency of 8.15% compared to the photoanode of a DSSC composed of unmodified TiO2 (2.19%) under full sunlight illumination (100 mW cm(-2), AM 1.5 G). This superior DSSC performance was due to the reduced band gap energy and retarded charge recombination that resulted from the introduction of plasmonic Ag nanoparticles on the surface of N-TiO2. The influence of the Ag content on the overall efficiency was also investigated, and the optimum Ag content for N-TiO2 was found to be 10 wt%. The enhanced solar energy conversion efficiency demonstrated by the N-TiO2-Ag nanocomposite makes it a promising alternative to conventional photoanode-based DSSCs.
机译：我们报告了N-TiO2-Ag纳米复合材料作为高效染料阳极的首次成功应用，该染料用于高效染料敏化太阳能电池（DSSC）。使用简单的化学还原方法制备具有不同Ag含量的N-TiO2-Ag纳米复合材料，并使用各种合适的技术对其进行表征。与在完全阳光照射（100 mW cm）下由未改性TiO2（2.19％）组成的DSSC的光电阳极相比，与N-TiO2-Ag改性的光电阳极组装的DSSC的太阳能电能量转换效率提高了8.15％。 （-2），AM 1.5 G）。 DSSC之所以具有出色的性能，是因为在N-TiO2表面引入了等离激元Ag纳米粒子，从而降低了带隙能，并降低了电荷复合。还研究了Ag含量对总效率的影响，发现N-TiO 2的最佳Ag含量为10wt％。 N-TiO2-Ag纳米复合材料显示出提高的太阳能转换效率，使其成为传统的基于光阳极的DSSC的有希望的替代品。

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