Institute for Nanoscience and Nanotechnology, Sharif University of Technology, Tehran 14588-89694, Iran.
ACS Appl Mater Interfaces. 2013 Jun 26;5(12):5397-402. doi: 10.1021/am401584y. Epub 2013 Jun 14.
For a dye-sensitized solar cell with a near-infrared squaraine (SQ1) sensitizer, the photovoltaic performance was enhanced remarkably with a reflective luminescent down-shifting (R-LDS) layer to increase the light-harvesting efficiency at the wavelength region 400-550 nm where the SQ1 dye has weak absorption. Relative enhancements greater than 200% in IPCE near 500 nm and 40-54% in JSC were achieved with red phosphor CaAlSiN3:Eu(2+) as the LDS material, attaining 5.0 and 4.8% overall efficiencies of power conversion for the R-LDS layer coated on the counter electrode (front illumination) and working electrode (back illumination), respectively.
对于具有近红外方酸菁（SQ1）敏化剂的染料敏化太阳能电池，通过反射发光下转换（R-LDS）层可以显著提高光伏性能，以增加在 SQ1 染料吸收较弱的波长区域 400-550nm 的光捕获效率。使用红色磷光体 CaAlSiN3:Eu(2+)作为 LDS 材料，在 500nm 附近的 IPCE 中实现了大于 200%的相对增强，在 JSC 中实现了 40-54%的相对增强，在涂覆于对电极（前照光）和工作电极（后照光）的 R-LDS 层上，分别实现了 5.0%和 4.8%的整体功率转换效率。
