Periodic nano/micro-hole array silicon solar cell

被引：4

作者：

Lai, Guan-Yu ^{[1
]}

Kumar, Dinesh P. ^{[1
]}

Pei, Zingway ^{[1
,2
,3
]}

机构：

[1] Natl Chung Hsing Univ, Dept Elect Engn, Taichung 402, Taiwan

[2] Natl Chung Hsing Univ, Grad Inst Optoelect Engn, Taichung 402, Taiwan

[3] Natl Chung Hsing Univ, Nanosci & Nanotechnol Res Ctr, Taichung 402, Taiwan

来源：

NANOSCALE RESEARCH LETTERS | 2014年 / 9卷

关键词：

Metal catalyst; Nano/microhole Si array; Reflectance; Efficiency; NANOWIRE ARRAYS; ABSORPTION;

D O I：

10.1186/1556-276X-9-654

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this study, we applied a metal catalyst etching method to fabricate a nano/microhole array on a Si substrate for application in solar cells. In addition, the surface of an undesigned area was etched because of the attachment of metal nanoparticles that is dissociated in a solution. The nano/microhole array exhibited low specular reflectance (<1%) without antireflection coating because of its rough surface. The solar spectrum related total reflection was approximately 9%. A fabricated solar cell with a 40-mu m hole spacing exhibited an efficiency of 9.02%. Comparing to the solar cell made by polished Si, the external quantum efficiency for solar cell with 30 s etching time was increased by 16.7%.

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