Self-organized colloidal quantum dots and metal nanoparticles for plasmon-enhanced intermediate-band solar cells

Mendes, Manuel J. and Hernández Martín, Estela and López Estrada, Esther and García-Linares Fontes, Pablo and Ramiro Gonzalez, Iñigo and Artacho Huertas, Irene and Antolín Fernández, Elisa and Tobías Galicia, Ignacio and Martí Vega, Antonio and Luque López, Antonio (2013). Self-organized colloidal quantum dots and metal nanoparticles for plasmon-enhanced intermediate-band solar cells. "Nanotechnology", v. 24 (n. 34); pp. 1-12. ISSN 0957-4484. https://doi.org/10.1088/0957-4484/24/34/345402.

Description

Title: Self-organized colloidal quantum dots and metal nanoparticles for plasmon-enhanced intermediate-band solar cells
Author/s:
  • Mendes, Manuel J.
  • Hernández Martín, Estela
  • López Estrada, Esther
  • García-Linares Fontes, Pablo
  • Ramiro Gonzalez, Iñigo
  • Artacho Huertas, Irene
  • Antolín Fernández, Elisa
  • Tobías Galicia, Ignacio
  • Martí Vega, Antonio
  • Luque López, Antonio
Item Type: Article
Título de Revista/Publicación: Nanotechnology
Date: August 2013
ISSN: 0957-4484
Volume: 24
Subjects:
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

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.

More information

Item ID: 26090
DC Identifier: http://oa.upm.es/26090/
OAI Identifier: oai:oa.upm.es:26090
DOI: 10.1088/0957-4484/24/34/345402
Official URL: http://iopscience.iop.org/0957-4484/24/34/345402/
Deposited by: Memoria Investigacion
Deposited on: 19 May 2014 18:47
Last Modified: 22 Sep 2014 11:39
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