Nanostructure formation in Silicon photovoltaic cell surface by femtosecond laser pulses

The experimental evidence of the effect of femtosecond laser pulses on the spectral response of a Silicon photovoltaic cell is demonstrated and investigated. The response of this device is covering the visible to near infrared spectral region. The responsivity of the photovoltaic cell is enhanced fr...

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Bibliographic Details
Published inIndian journal of science and technology Vol. 3; no. 3; pp. 308 - 310
Main Author Al-Naimee, K. A.
Format Journal Article
LanguageEnglish
Published 20.03.2010
Subjects
Femtosecond
Lasers
Nanocomposites
Nanostructure
Photovoltaic cells
Silicon
Solar cells
Spectra
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Summary:The experimental evidence of the effect of femtosecond laser pulses on the spectral response of a Silicon photovoltaic cell is demonstrated and investigated. The response of this device is covering the visible to near infrared spectral region. The responsivity of the photovoltaic cell is enhanced from 0.18A/W (0.5A/W to 0.85 A/W) to 0.25A/W, this means that the conversion efficiency increases from about 9% to about 14% due to irradiation effect. All treatments and measurements have been done at room temperature. The observed enhancement is related to the appearing of nano-structured groves in the 700-900 nm range.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:0974-6846
0974-5645
DOI:10.17485/ijst/2010/v3i3.3