Abstract Luminescent solar concentrator (LSC) integrated with c-Si photovoltaic cells (PV cells) in building integrated photovoltaics (BIPV) could grow up to be an important element of our life for energy harvest in the future. Heavy metal free quantum dots (QDs) are promising for LSC applications, which can be controlled to possess effective large Stokes Shift and low reabsorption of emission that benefit their applications in BIPV. In our work, different amount and size of SiO2 particles were added to CuInS2/ZnS QDs based LSCs to realize highly efficient scattering enhanced LSC (S-LSC) devices. Since SiO2 particles induced scattering effect, we achieved a power conversion efficiencies (PCE) of 4.20%, which showed an improvement of 60.3% compared with the pure QDs based LSC without SiO2 particles. This study suggests a new method of scattering enhancement to realize better performance for LSC.

中文翻译：

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二氧化硅微粒散射增强型量子点发光太阳能聚光器

摘要 在建筑集成光伏 (BIPV) 中，与 c-Si 光伏电池 (PV 电池) 集成的发光太阳能聚光器 (LSC) 可能会成为我们未来生活中获取能量的重要元素。无重金属量子点 (QD) 有望用于 LSC 应用，可以控制其具有有效的大斯托克斯位移和低发射重吸收，这有利于其在 BIPV 中的应用。在我们的工作中，将不同数量和尺寸的 SiO2 颗粒添加到基于 CuInS2/ZnS QD 的 LSC 中，以实现高效的散射增强 LSC（S-LSC）器件。由于 SiO2 颗粒引起散射效应，我们实现了 4.20% 的功率转换效率 (PCE)，与没有 SiO2 颗粒的纯 QD 基 LSC 相比，提高了 60.3%。