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
Nanostructure Formation in Silicon Photovoltaic Cells by Femtosecond Laser Pulses / A. M. Taleb; K. A. Al-Naimee; S. F. Abdalah; Riccardo Meucci; F. T. Arecchi. - STAMPA. - 670:(2011), pp. 118-121. (Intervento presentato al convegno 6th Japanese-Mediterranean Workshop on Applied Electromagnetic Engineering for Magnetic Superconducting and Nano Materials, JAPMED'6 tenutosi a Bucharest (Romania) nel 27-29 luglio 2009).
Nanostructure Formation in Silicon Photovoltaic Cells by Femtosecond Laser Pulses
AL NAIMEE, KAIS;FAHMI ABDALAH, SORA;MEUCCI, RICCARDO;ARECCHI, FORTUNATO TITO
2011
Abstract
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
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