Light trapping in thin-film silicon solar cells with submicron surface texture

被引：132

作者：

Dewan, Rahul ^{[1
]}

Marinkovic, Marko ^{[1
]}

Noriega, Rodrigo ^{[2
]}

Phadke, Sujay ^{[2
]}

Salleo, Alberto ^{[2
]}

Knipp, Dietmar ^{[1
]}

机构：

[1] Jacobs Univ Bremen, Elect Devices & Nanophoton Lab, Sch Sci & Engn, D-28759 Bremen, Germany

[2] Stanford Univ, Dept Mat Sci & Engn, Geballe Lab Adv Mat, Stanford, CA 94305 USA

来源：

OPTICS EXPRESS | 2009年 / 17卷 / 25期

关键词：

MICROCRYSTALLINE SILICON; AMORPHOUS-SILICON;

D O I：

10.1364/OE.17.023058

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The influence of nano textured front contacts on the optical wave propagation within microcrystalline thin-film silicon solar cell was investigated. Periodic triangular gratings were integrated in solar cells and the influence of the profile dimensions on the quantum efficiency and the short circuit current was studied. A Finite Difference Time Domain approach was used to rigorously solve the Maxwell's equations in two dimensions. By studying the influence of the period and height of the triangular profile, the design of the structures were optimized to achieve higher short circuit currents and quantum efficiencies. Enhancement of the short circuit current in the blue part of the spectrum is achieved for small triangular periods (P<200 nm), whereas the short circuit current in the red and infrared part of the spectrum is increased for triangular periods (P = 900nm) comparable to the optical wavelength. The influence of the surface texture on the solar cell performance will be discussed. (C) 2009 Optical Society of America

引用

页码：23058 / 23065

页数：8