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Energy transfer from Tb3+ to Yb3+ in silica hafinia glass ceramic for photovoltaic applications
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نویسنده
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belmokhtar s. ,bouajaj a. ,britel m. ,normani s. ,armellini c. ,boulard b. ,enrichi f. ,belluomo f. ,di stefano a. ,ferrari m.
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منبع
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journal of materials and environmental science - 2016 - دوره : 7 - شماره : 2 - صفحه:515 -518
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چکیده
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The aim of this paper is to study the possibility to improve the efficiency of solar cells by using downconversion of high energy photons into low energy ones thanks to the tb3+/yb3+ energy transfert mechanism in 70sio2-30hfo2 glass-ceramic waveguides. the preparation of the waveguides by a sol-gel method is first presented. then results of compositional and optical (photoluminescence) characterization are given. the result found is that the transfer efficiency is about 38% for the sample with the highest concentration of rare earths (5%).
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کلیدواژه
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Down-conversion; Energy transfer; Glass-ceramic; Photovoltaic solar cells; Quantum cutting; Rare earths
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آدرس
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laboratory of innovative technologies,lti,ensa-tangier,university abdelmalek essaâdi,tangier, Morocco, laboratory of innovative technologies,lti,ensa-tangier,university abdelmalek essaâdi,tangier, Morocco, laboratory of innovative technologies,lti,ensa-tangier,university abdelmalek essaâdi,tangier, Morocco, cnr-ifn,istituto di fotonica e nanotecnologie,csmfo lab.,via allacascata 56/c,povo,trento, Italy, cnr-ifn,istituto di fotonica e nanotecnologie,csmfo lab.,via allacascata 56/c,povo,trento, Italy, institut des molécules et matériaux du mans,umr 6283,equipe fluorures,université du maine,av. olivier messiaen,le mans cedex 09, France, veneto nanotech,laboratorio lann,c.so stati uniti 4,padova, Italy, meridionale impianti spa,via senatore simonetta 26/d,caponago (mb), Italy, meridionale impianti spa,via senatore simonetta 26/d,caponago (mb), Italy, cnr-ifn,istituto di fotonica e nanotecnologie,csmfo lab.,via allacascata 56/c,povo,trento, Italy
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Authors
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