Memorias de investigación
Artículos en revistas:
Self-organized colloidal quantum dots and metal nanoparticles for plasmon-enhanced intermediate-band solar cells
Año:2013
Áreas de investigación
  • Dispositivos electrónicos,
  • Materiales para ingeniería eléctrica y electrónica
Datos
Descripción
A colloidal deposition technique is presented to construct long-range ordered hybrid arrays of self-assembled quantum dots and metal nanoparticles. Quantum dots are promising for novel opto-electronic devices but, in most cases, their optical transitions of interest lack sufficient light absorption to provide a significant impact in their implementation. A potential solution is to couple the dots with localized plasmons in metal nanoparticles. The extreme confinement of light in the near-field produced by the nanoparticles can potentially boost the absorption in the quantum dots by up to two orders of magnitude. In this work, light extinction measurements are employed to probe the plasmon resonance of spherical gold nanoparticles in lead sulfide colloidal quantum dots and amorphous silicon thin-films. Mie theory computations are used to analyze the experimental results and determine the absorption enhancement that can be generated by the highly intense near-field produced in the vicinity of the gold nanoparticles at their surface plasmon resonance. The results presented here are of interest for the development of plasmon-enhanced colloidal nanostructured photovoltaic materials, such as colloidal quantum dot intermediate-band solar cells.
Internacional
Si
JCR del ISI
Si
Título de la revista
Nanotechnology
ISSN
0957-4484
Factor de impacto JCR
3,842
Información de impacto
Volumen
24
DOI
Número de revista
Desde la página
345402-1
Hasta la página
345402-12
Mes
SIN MES
Ranking
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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