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首页> 外文期刊>Organic Electronics >Efficiency enhancement in polymer solar cells using combined plasmonic effects of multi-positional silver nanostructures
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Efficiency enhancement in polymer solar cells using combined plasmonic effects of multi-positional silver nanostructures

机译：利用多位置银纳米结构的组合等离子体效应高分子太阳能电池效率增强

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摘要

Achieving high absorption enhancement in a broad wavelength range without increasing the thickness of active layer is essential for improving the performance of polymer solar cells. In this work, we report efficiency enhancement in poly({4,8-bis[(2-ethylhexyl)oxy]benzo[l,2-b:4,5-b']dithiophene-2,6-diyl}{3-fluoro-2-[(2-ethyl-hexyl)carbonyl]thieno [3,4-b]thiophenediyl}): [6,6]-phenyl C_(71)-butyric acid methyl ester active layer based polymer solar cells by incorporating silver nanostructures simultaneously in cathode buffer layer and active layer. Efficiency of the device was increased from 6.53% to 7.53% after incorporating the nanostructures. The plasmonic devices exhibited superior performance in a broad wavelength range from 450 nm to 750 nm. Pho-toluminescence measurements were carried out to confirm the improvement in light harvesting capability of the devices. Finite-difference time-domain simulations and Raman spectroscopy were employed to verify the electric field intensity enhancement around the nanostructures. The performance enhancement mechanism was realized based on theoretical simulations and optical measurements.
机译：在不增加有源层的厚度的情况下实现宽波长范围的高吸收增强对于改善聚合物太阳能电池的性能至关重要。在这项工作中，我们报告聚（{4,8-双[（2-乙基己基）氧]苯并[L，2-B：4,5-B'）二噻吩-2,6-Ⅱ} {3 - 氟-2- [（2-乙基 - 己基）羰基] Thieno [3,4-b]噻吩噻吩}：[6,6] - 苯基C_（71） - 丁酸甲基酯活性层的聚合物太阳能电池在阴极缓冲层和有源层中同时掺入银纳米结构。纳入纳米结构后，该装置的效率从6.53％增加到7.53％。等离子体器件在宽波长范围内显示出优异的性能，从450nm到750nm。进行PHO-溶解测量以确认器件的光收集能力的改善。采用有限差分时域模拟和拉曼光谱来验证纳米结构周围的电场强度增强。基于理论模拟和光学测量来实现性能增强机制。

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