Maximizing light emission from silicon nanocrystals - The role of hydrogen

A. R. Wilkinson; R. G. Elliman

doi:10.1016/j.nimb.2005.08.036

Maximizing light emission from silicon nanocrystals - The role of hydrogen

A. R. Wilkinson, R. G. Elliman^*

^*Corresponding author for this work

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

9 Citations (Scopus)

Abstract

Time-resolved photoluminescence measurements are undertaken to determine the passivation kinetics of luminescence-quenching defects during isothermal and isochronal annealing in molecular and atomic hydrogen. The latter employs an alneal process in which atomic hydrogen is generated by reactions between a deposited Al layer and H₂O or -OH radicals in the SiO₂. Passivation and desorption kinetics are shown to be consistent with the existence of two classes of non-radiative defects: one that reacts with either atomic or molecular hydrogen, and the other that reacts only with atomic hydrogen.

Original language	English
Pages (from-to)	303-306
Number of pages	4
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	242
Issue number	1-2
DOIs	https://doi.org/10.1016/j.nimb.2005.08.036
Publication status	Published - Jan 2006

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10.1016/j.nimb.2005.08.036

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title = "Maximizing light emission from silicon nanocrystals - The role of hydrogen",

abstract = "Time-resolved photoluminescence measurements are undertaken to determine the passivation kinetics of luminescence-quenching defects during isothermal and isochronal annealing in molecular and atomic hydrogen. The latter employs an alneal process in which atomic hydrogen is generated by reactions between a deposited Al layer and H2O or -OH radicals in the SiO2. Passivation and desorption kinetics are shown to be consistent with the existence of two classes of non-radiative defects: one that reacts with either atomic or molecular hydrogen, and the other that reacts only with atomic hydrogen.",

keywords = "Dangling-bond, Hydrogen, Luminescence, Nanocrystal, Passivation, Silicon",

author = "Wilkinson, {A. R.} and Elliman, {R. G.}",

year = "2006",

month = jan,

doi = "10.1016/j.nimb.2005.08.036",

language = "English",

volume = "242",

pages = "303--306",

journal = "Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms",

issn = "0168-583X",

publisher = "Elsevier B.V.",

number = "1-2",

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TY - JOUR

T1 - Maximizing light emission from silicon nanocrystals - The role of hydrogen

AU - Wilkinson, A. R.

AU - Elliman, R. G.

PY - 2006/1

Y1 - 2006/1

N2 - Time-resolved photoluminescence measurements are undertaken to determine the passivation kinetics of luminescence-quenching defects during isothermal and isochronal annealing in molecular and atomic hydrogen. The latter employs an alneal process in which atomic hydrogen is generated by reactions between a deposited Al layer and H2O or -OH radicals in the SiO2. Passivation and desorption kinetics are shown to be consistent with the existence of two classes of non-radiative defects: one that reacts with either atomic or molecular hydrogen, and the other that reacts only with atomic hydrogen.

AB - Time-resolved photoluminescence measurements are undertaken to determine the passivation kinetics of luminescence-quenching defects during isothermal and isochronal annealing in molecular and atomic hydrogen. The latter employs an alneal process in which atomic hydrogen is generated by reactions between a deposited Al layer and H2O or -OH radicals in the SiO2. Passivation and desorption kinetics are shown to be consistent with the existence of two classes of non-radiative defects: one that reacts with either atomic or molecular hydrogen, and the other that reacts only with atomic hydrogen.

KW - Dangling-bond

KW - Hydrogen

KW - Luminescence

KW - Nanocrystal

KW - Passivation

KW - Silicon

UR - http://www.scopus.com/inward/record.url?scp=28544437109&partnerID=8YFLogxK

U2 - 10.1016/j.nimb.2005.08.036

DO - 10.1016/j.nimb.2005.08.036

M3 - Article

SN - 0168-583X

VL - 242

SP - 303

EP - 306

JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

IS - 1-2

ER -

Maximizing light emission from silicon nanocrystals - The role of hydrogen

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