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Luminescent Plates Doped with Stilbene 420 Dye for Enhanced Silicon Solar Cell Performance: Down-Conversion

Author: S.H. Al Shaikh Hussin
Journal: Iraqi Journal of Applied Physics المجلة العراقية للفيزياء التطبيقية ISSN: 18132065 23091673 Year: 2010 Volume: 6 Issue: 4 Pages: 3-8
Publisher: iraqi society for alternative and renewable energy sources and techniques الجمعية العراقية لمصادر وتقنيات الطاقة البديلة والمستجدة

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Abstract

The luminescent plates down-converting (DC) have the potential to generate more than one low-energy photon for every incident high energy photon by adding laser dyes that have the ability to absorb high energy photons that act in ultra-violet region such as stilbene 420 dye and emit low-energy photons in the visible region and so enhanced conversion efficiency from 2.88% to 3.82% and so achieved an increase in conversion efficiency up to 32.69% .That means the (DC) convert the high-energy solar photons to multiple photons having energy grater than of silicon band gap .The luminescent plates have been prepared by doping the epoxy resin with stilbene 420 dye that is dissolved in methanol in concentration of 1.8×10-3mol/L and different thickness. The optical properties of luminescent plates in silicon solar cell was studied and discussed in door and out door showing an increase in conversion efficiency with the increase in luminescent plates thickness.

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