Design, optimization and fabrication of 2D photonic crystals for solar cells

被引：22

作者：

Dominguez, S. ^{[1
]}

Cornago, I. ^{[1
]}

Garcia, O. ^{[1
]}

Ezquer, M. ^{[2
]}

Rodriguez, M. J. ^{[2
]}

Lagunas, A. R. ^{[2
]}

Perez-Conde, J. ^{[3
]}

Bravo, J. ^{[1
]}

机构：

[1] FideNa, Pamplona 31006, Spain

[2] CENER, Pamplona 31621, Spain

[3] Univ Publ Navarra, Dept Fis, Pamplona 31006, Spain

来源：

PHOTONICS AND NANOSTRUCTURES-FUNDAMENTALS AND APPLICATIONS | 2013年 / 11卷 / 01期

关键词：

Reflectance; Solar cell; Silicon; Texturization; Photonic crystal; Lithography; ANTIREFLECTION COATINGS;

D O I：

10.1016/j.photonics.2012.07.002

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This paper presents the optimization of 2D photonic crystals (PCs) onto Si wafers to improve the performance of c-Si PV cells. The objective is to find a structure capable of minimizing the reflectance of the Si wafer in the spectral range between 400 nm and 1000 nm. The study has been limited to PCs that can be fabricated and characterized with the tools and technology available and to dimensions in the same order as the visible light wavelength. PCs with different shapes and dimensions have been simulated and finally the optimum structure has been fabricated by a process based on laser interference lithography (LIL) and reactive ion etching (RIE). This optimized PC presents an average reflectance of 3.6% in the selected wavelength range, without any other material used as antireflective coating. This result means a drastic reduction in comparison with reflectance obtained out of the standard wet etch texturization used in current solar cell manufacturing lines. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：29 / 36

页数：8

共 25 条

[1]

Anderson M.J., 2000, DESIGN EXPT KIRK OTH

[2] Subwavelength transmission grating retarders for use at 10.6 mu m [J].