基于量子点的荧光型太阳能聚光器

Quantum dots based luminescent solar concentrator

近年来,量子点在结构可控、光谱调节和光学稳定方面的研究进展,表明基于量子点的聚光器件表现出优于基于传统有机染料分子的光输出性能。量子点聚光器成为目前量子点研究领域的新方向。量子点在宏量制备和绿色制备方面的深入研究,使得量子点的制造成本逐步降低,基于量子点的聚光器具有光电转换效率和成本上的优势。本文综述了量子点聚光器的研究进展,主要包括荧光型聚光器的优点、聚光器对量子点光学性质的要求、器件制备的工艺和器件的性能表征方法。重点阐述了量子点的太阳光吸收能力、荧光量子产率和重吸收等关键因素对聚光器件性能的影响,同时介绍了该领域目前最新的研究方向,展望了廉价太阳能窗户在未来城镇建筑上的潜在应用。

In recent years,quantum dots outperformed organic dye in solar concentrator in terms of optical efficiency,by virtue of recent achievement in the field of the structure engineering,tunable spectroscopy and enhanced stability. Quantum dots luminescent solar concentrator（ LSC） has been considered as a new direction in the research field of quantum dots. Due to the development of mass production techniques and green procedures,which facilitate a gradual reduction in the manufacturing cost of quantum dots,quantum dot concentrators have an advantage in the high efficiency and low cost of photoelectric conversion. In this review,we summarize the recent advances in quantum dots based LSC,including the advantages of the solar concentrator,the requirements for the optical properties of the concentrator,the process of the device fabrication and the performance characterization of the device. We focuse on the influence of essential factors on LSC performance,including solar absorption capability,photoluminescence quantum efficiency and reabsorption. Meanwhile,recent new research directions in this field are introduced and the future potential application of low-cost solarwindow for urban architecture is envisioned.