Memorias de investigación
Artículos en revistas:
Nanoimprinted diffraction gratings for crystalline silicon solar cells: implementation, characterization and simulation
Año:2013
Áreas de investigación
  • Células solares
Datos
Descripción
Light trapping is becoming of increasing importance in crystalline silicon solar cells as thinner wafers are used to reduce costs. In this work, we report on light trapping by rear-side diffraction gratings produced by nano-imprint lithography using interference lithography as the mastering technology. Gratings fabricated on crystalline silicon wafers are shown to provide significant absorption enhancements. Through a combination of optical measurement and simulation, it is shown that the crossed grating provides better absorption enhancement than the linear grating, and that the parasitic reflector absorption is reduced by planarizing the rear reflector, leading to an increase in the useful absorption in the silicon. Finally, electrooptical simulations are performed of solar cells employing the fabricated grating structures to estimate efficiency enhancement potential.
Internacional
Si
JCR del ISI
Si
Título de la revista
Optics Express
ISSN
1094-4087
Factor de impacto JCR
3,587
Información de impacto
Datos JCR del año 2011
Volumen
21
DOI
10.1364/OE.21.00A295
Número de revista
S2
Desde la página
A295
Hasta la página
A304
Mes
SIN MES
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Participantes
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Silicio y Nuevos Conceptos para Células Solares
  • Centro o Instituto I+D+i: Instituto de Energía Solar
  • Departamento: Electrónica Física