The interplay of quantum confinement and hydrogenation in amorphous silicon quantum dots

Sadegh Askari; Vladmir Svrcek; Paul Maguire; Davide Mariotti

doi:10.1002/adma.201503013

The interplay of quantum confinement and hydrogenation in amorphous silicon quantum dots

Sadegh Askari^*, Vladmir Svrcek, Paul Maguire, Davide Mariotti

^*Corresponding author for this work

Design, Manufacturing And Engineering Management

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Abstract

Hydrogenation in amorphous silicon quantum dots (QDs) has a dramatic impact on the corresponding optical properties and band energy structure, leading to a quantum-confined composite material with unique characteristics. The synthesis of a-Si:H QDs is demonstrated with an atmospheric-pressure plasma process, which allows for accurate control of a highly chemically reactive non-equilibrium environment with temperatures well below the crystallization temperature of Si QDs.

Original language	English
Pages (from-to)	8011-8016
Number of pages	6
Journal	Advanced Materials
Volume	27
Issue number	48
Early online date	2 Nov 2015
DOIs	https://doi.org/10.1002/adma.201503013
Publication status	Published - 22 Dec 2015

Funding

This work was supported by the Leverhulme Trust (International Network IN-2012-136) and EPSRC (EP/K022237/1). S.A. thanks the financial support of the University of Ulster Vice-Chancellor Studentship.

Keywords

amorphous silicon
hydrogen alloying
photoluminescence
quantum dots

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10.1002/adma.201503013Licence: CC BY 4.0

Askari-etal-AM-2015-The-interplay-of-quantum-confinement-and-hydrogenationFinal published version, 1.3 MBLicence: CC BY 4.0

Cite this

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title = "The interplay of quantum confinement and hydrogenation in amorphous silicon quantum dots",

abstract = "Hydrogenation in amorphous silicon quantum dots (QDs) has a dramatic impact on the corresponding optical properties and band energy structure, leading to a quantum-confined composite material with unique characteristics. The synthesis of a-Si:H QDs is demonstrated with an atmospheric-pressure plasma process, which allows for accurate control of a highly chemically reactive non-equilibrium environment with temperatures well below the crystallization temperature of Si QDs.",

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AU - Askari, Sadegh

AU - Svrcek, Vladmir

AU - Maguire, Paul

AU - Mariotti, Davide

PY - 2015/12/22

Y1 - 2015/12/22

N2 - Hydrogenation in amorphous silicon quantum dots (QDs) has a dramatic impact on the corresponding optical properties and band energy structure, leading to a quantum-confined composite material with unique characteristics. The synthesis of a-Si:H QDs is demonstrated with an atmospheric-pressure plasma process, which allows for accurate control of a highly chemically reactive non-equilibrium environment with temperatures well below the crystallization temperature of Si QDs.

AB - Hydrogenation in amorphous silicon quantum dots (QDs) has a dramatic impact on the corresponding optical properties and band energy structure, leading to a quantum-confined composite material with unique characteristics. The synthesis of a-Si:H QDs is demonstrated with an atmospheric-pressure plasma process, which allows for accurate control of a highly chemically reactive non-equilibrium environment with temperatures well below the crystallization temperature of Si QDs.

KW - amorphous silicon

KW - hydrogen alloying

KW - photoluminescence

KW - quantum dots

U2 - 10.1002/adma.201503013

DO - 10.1002/adma.201503013

M3 - Article

AN - SCOPUS:84955208151

SN - 0935-9648

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SP - 8011

EP - 8016

JO - Advanced Materials

JF - Advanced Materials

IS - 48

ER -

The interplay of quantum confinement and hydrogenation in amorphous silicon quantum dots

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Keywords

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