State‐of‐the‐art solar energy harvesting systems based on photovoltaic technology require constant illumination for optimal operation. However, weather conditions and solar illumination tend to fluctuate. Here, a device is presented that extracts electrical energy from such light fluctuations. The concept combines light‐induced heating of gold nanodisks (acting as plasmonic optical nanoantennas), and an organic pyroelectric copolymer film (poly(vinylidenefluoride‐co‐trifluoroethylene)), that converts temperature changes into electrical signals. This hybrid device can repeatedly generate current pulses, not only upon the onset of illumination, but also when illumination is blocked. Detailed characterization highlights the key role of the polarization state of the copolymer, while the copolymer thickness has minor influence on performance. The results are fully consistent with plasmon‐assisted pyroelectric effects, as corroborated by combined optical and thermal simulations that match the experimental results. Owing to the tunability of plasmonic resonances, the presented concept is compatible with harvesting near infrared light while concurrently maintaining visible transparency.

中文翻译：

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波动的等离子和热电混合收获

基于光伏技术的最先进的太阳能收集系统需要持续的照明才能实现最佳运行。但是，天气条件和太阳照度往往会波动。在此，提出了一种从这种光波动中提取电能的装置。的概念结合光诱导金纳米盘的加热（作为等离子体激元光纳米天线），和有机热电共聚物膜（聚（偏二共-三氟乙烯）），将温度变化转换为电信号。不仅在照明开始时，而且在照明被遮挡时，这种混合装置都可以重复产生电流脉冲。详细的特征突出显示了共聚物的极化状态的关键作用，而共聚物的厚度对性能影响较小。该结果与等离激元辅助的热电效应完全吻合，并通过与实验结果相匹配的光学和热学模拟得到了证实。由于等离子体共振的可调谐性，提出的概念与收集近红外光兼容，同时保持可见的透明性。