Effect of porous silicon stain etched on large area alkaline textured crystalline silicon solar cells

被引:26
作者
Marrero, N. [1 ]
Guerrero-Lemus, R. [1 ,2 ]
Gonzalez-Diaz, B. [1 ]
Borchert, D. [3 ]
机构
[1] Univ La Laguna, Dept Fis Basica, San Cristobal la Laguna 38204, SC De Tenerife, Spain
[2] Fdn Estudios Econ Aplicada, Madrid 28001, Spain
[3] Fraunhofer Inst, Inst Solare Energiesyst, D-45884 Gelsenkirchen, Germany
关键词
Texturization; Stain etching; Solar cells; Silicon; EFFICIENCY; LAYERS;
D O I
10.1016/j.tsf.2008.09.070
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This work shows the effects of porous silicon stain etched on alkaline textured antireflection coatings of large area monocrystalline silicon solar cells. The texturization process has been produced by immersion of the silicon wafers in different carbonate-based solutions. The porous silicon layers were formed by stain etching in a HNO3/HF aqueous solution before or after the texturization process. We study the effects of different alkaline and acidic solutions and the etching times on the solar cell parameters and the surface reflectance of the device. We have found that the average reflectance of the surface is lowered when the porous etching is combined with the texturization in the alkaline solution. However, the solar cell characteristics are not improved. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:2648 / 2650
页数:3
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