公开(公告)号：US20130104983A1

公开(公告)日：2013-05-02

申请号：US13665380

申请日：2012-10-31

申请人： The Regents of the University of California

发明人： Ze'ev R. Abrams ,  Avi Niv ,  Majid Gharghi ,  Xiang Zhang

IPC分类号： H01L31/0232 ,  H01L31/18

CPC分类号： H01L31/02165 ,  H01L31/02168 ,  H01L31/0547 ,  H01L31/056 ,  Y02E10/52

摘要： This invention improves the efficiency of non-optimal solar cell materials, enabling them to achieve the same efficiency as optimal materials. The invention describes a method of improving the emission and absorption properties of a generic photovoltaic cell using feedback reflectors and/or filters, increasing the open circuit voltage of the cell, and thus the overall efficiency. Specific examples of single junction photovoltaics are detailed, but not limited to. Particularly, semiconducting solar cells in either single- or multi-junction formats are described. The invention can be applied to any functioning solar cell to increase the efficiency, while describing the maximal efficiency available using thermodynamic identities. Other examples are included, such as organic photovoltaic, nanostractured photovoltaic devices, and non-planar geometries. The invention thus enables using non-optimal photovoltaic materials to achieve similar efficiency results as optimal ones, regardless of the designed structure or material used.

摘要翻译： 本发明提高了非最佳太阳能电池材料的效率，使其能够达到与最佳材料相同的效率。 本发明描述了一种使用反馈反射器和/或滤波器来改善普通光伏电池的发射和吸收特性的方法，增加了电池的开路电压，从而提高了整体效率。 单结光伏的具体实例详细但不限于此。 特别地，描述了单结或多联形式的半导体太阳能电池。 本发明可以应用于任何功能太阳能电池，以提高效率，同时使用热力学身份描述可获得的最大效率。 包括其他实例，例如有机光伏，纳米级光伏器件和非平面几何形状。 因此，无论所设计的结构或材料如何，本发明使得能够使用非最佳光伏材料来获得与最佳光伏材料类似的效率结果。