Absorption enhancement in solution processed metal-semiconductor nanocomposites

F. Pelayo García De Arquer; Fiona J. Beck; Gerasimos Konstantatos

doi:10.1364/OE.19.021038

Absorption enhancement in solution processed metal-semiconductor nanocomposites

F. Pelayo García De Arquer^*, Fiona J. Beck, Gerasimos Konstantatos

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

We present a full wave 3D simulation study of optical absorption enhancement in solution processed metal-semiconductor nanocomposite ultrathin films, which consist of colloidal metallic nanoparticles (MNPs) and semiconductor matrices of polymer and colloidal quantum dots (CQD). We present an approach for modeling the optical properties of a CQD film, and study the effect of the optical properties of the semiconductor in the near field enhancement showing that CQD is a very promising platform to exploit the benefits of the near-field effects. We show that over a 100% enhancement can be achieved in the visible-near infrared region of the spectrum for CQD PbS films, with a maximum gain factor of 4 when MNPs are on resonance. We study in detail the effect of MNP capping for different ligand lengths and materials and propose solutions to optimize absorption enhancement.

Original language	English
Pages (from-to)	21038-21049
Number of pages	12
Journal	Optics Express
Volume	19
Issue number	21
DOIs	https://doi.org/10.1364/OE.19.021038
Publication status	Published - 10 Oct 2011
Externally published	Yes

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title = "Absorption enhancement in solution processed metal-semiconductor nanocomposites",

abstract = "We present a full wave 3D simulation study of optical absorption enhancement in solution processed metal-semiconductor nanocomposite ultrathin films, which consist of colloidal metallic nanoparticles (MNPs) and semiconductor matrices of polymer and colloidal quantum dots (CQD). We present an approach for modeling the optical properties of a CQD film, and study the effect of the optical properties of the semiconductor in the near field enhancement showing that CQD is a very promising platform to exploit the benefits of the near-field effects. We show that over a 100% enhancement can be achieved in the visible-near infrared region of the spectrum for CQD PbS films, with a maximum gain factor of 4 when MNPs are on resonance. We study in detail the effect of MNP capping for different ligand lengths and materials and propose solutions to optimize absorption enhancement.",

author = "{Pelayo Garc{\'i}a De Arquer}, F. and Beck, {Fiona J.} and Gerasimos Konstantatos",

year = "2011",

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doi = "10.1364/OE.19.021038",

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AU - Pelayo García De Arquer, F.

AU - Beck, Fiona J.

AU - Konstantatos, Gerasimos

PY - 2011/10/10

Y1 - 2011/10/10

N2 - We present a full wave 3D simulation study of optical absorption enhancement in solution processed metal-semiconductor nanocomposite ultrathin films, which consist of colloidal metallic nanoparticles (MNPs) and semiconductor matrices of polymer and colloidal quantum dots (CQD). We present an approach for modeling the optical properties of a CQD film, and study the effect of the optical properties of the semiconductor in the near field enhancement showing that CQD is a very promising platform to exploit the benefits of the near-field effects. We show that over a 100% enhancement can be achieved in the visible-near infrared region of the spectrum for CQD PbS films, with a maximum gain factor of 4 when MNPs are on resonance. We study in detail the effect of MNP capping for different ligand lengths and materials and propose solutions to optimize absorption enhancement.

AB - We present a full wave 3D simulation study of optical absorption enhancement in solution processed metal-semiconductor nanocomposite ultrathin films, which consist of colloidal metallic nanoparticles (MNPs) and semiconductor matrices of polymer and colloidal quantum dots (CQD). We present an approach for modeling the optical properties of a CQD film, and study the effect of the optical properties of the semiconductor in the near field enhancement showing that CQD is a very promising platform to exploit the benefits of the near-field effects. We show that over a 100% enhancement can be achieved in the visible-near infrared region of the spectrum for CQD PbS films, with a maximum gain factor of 4 when MNPs are on resonance. We study in detail the effect of MNP capping for different ligand lengths and materials and propose solutions to optimize absorption enhancement.

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DO - 10.1364/OE.19.021038

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JO - Optics Express

JF - Optics Express

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ER -

Absorption enhancement in solution processed metal-semiconductor nanocomposites

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