Porous silicon Bragg mirrors on single- and multi-crystalline silicon for solar cells

被引：19

作者：

Ivanov, I. I. ^{[1
]}

Skryshevsky, V. A. ^{[1
]}

Nychyporuk, T. ^{[2
]}

Lemiti, M. ^{[2
]}

Makarov, A. V. ^{[3
]}

Klyui, N. I. ^{[3
]}

Tretyak, O. V. ^{[1
]}

机构：

[1] Taras Shevchenko Natl Univ Kyiv, Inst High Technol, UA-01033 Kiev, Ukraine

[2] Univ Lyon, INSA Lyon, Inst Nanotechnol Lyon, UMR CNRS 5270, F-69621 Villeurbanne, France

[3] Nat Acad Sci Ukraine, V Lashkaryov Inst Semicond Phys, UA-03680 Kiev, Ukraine

来源：

RENEWABLE ENERGY | 2013年 / 55卷

关键词：

Multicrystalline solar cell; Rear reflector; Bragg mirror; REFLECTOR; SURFACE; AREA;

D O I：

10.1016/j.renene.2012.12.031

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Porous silicon Bragg mirrors at back-side of single crystalline and multicrystalline silicon solar cell were numerically simulated by transfer matrix method. It allows to choose the optimal parameters of porous stack of bi-layers (indexes of refraction, number of bi-layers) when the increase of photon absorption in 900-1050 nm spectral region is achieved. Application of Bragg mirrors at back-side of single crystalline solar cell can improve the efficiency on more than 0.8% in absolute for 200 mu m both-side textured thickness wafer. The simulated results were compared with characteristics of Bragg mirrors fabricated by electrochemical etching of single- and multi-crystalline silicon. It is shown that despite the natural crystallites disorientation the efficient Bragg mirrors can be fabricated on multicrystalline silicon wafers in such way. Maximum measured reflectivity for Bragg mirrors on multicrystalline substrate achieves approximately 62%, whereas for single crystalline silicon the reflectivity in maximum is more than 90%. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：79 / 84

页数：6

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