Influence of TiO2 host crystallinity on Er3+ light emission

Sabrina Rostgaard Johannsen; Søren Roesgaard Nielsen; Brian Julsgaard; R. A. S. Ferreira; Jacques Chevallier; Peter Balling; Sanjay Ram; Arne Nylandsted Larsen

doi:10.1364/OME.6.001664

Influence of TiO₂ host crystallinity on Er³⁺ light emission

Sabrina Rostgaard Johannsen, Søren Roesgaard Nielsen, Brian Julsgaard, R. A. S. Ferreira, Jacques Chevallier, Peter Balling, Sanjay Ram, Arne Nylandsted Larsen

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Abstract

This work presents a study of the luminescence properties of Er ³⁺ when included into two different TiO ₂ hosts: A polycrystalline and an amorphous host. The two host environments were produced by depositing two thin films with different Er ³⁺ concentration using radio-frequency magnetron sputtering. Structural analysis revealed the presence of the rutile and anatase phases in the polycrystalline film. Time-resolved and steadystate photoluminescence measurements evidenced the presence of two distinct local Er ³⁺ environments in the polycrystalline host. For the amorphous TiO ₂ host, only one Er ³⁺ environment was observed, which differed from the two environments in the polycrystalline host. A method for extracting a fast and slow time-resolved emission spectrum from the two observed local environments in the polycrystalline host is also presented.

Original language	English
Journal	Optical Materials Express
Volume	6
Issue	5
Pages (from-to)	1664-1678
Number of pages	15
ISSN	2159-3930
DOIs	https://doi.org/10.1364/OME.6.001664
Publication status	Published - 1 May 2016

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title = "Influence of TiO2 host crystallinity on Er3+ light emission",

abstract = "This work presents a study of the luminescence properties of Er 3+ when included into two different TiO 2 hosts: A polycrystalline and an amorphous host. The two host environments were produced by depositing two thin films with different Er 3+ concentration using radio-frequency magnetron sputtering. Structural analysis revealed the presence of the rutile and anatase phases in the polycrystalline film. Time-resolved and steadystate photoluminescence measurements evidenced the presence of two distinct local Er 3+ environments in the polycrystalline host. For the amorphous TiO 2 host, only one Er 3+ environment was observed, which differed from the two environments in the polycrystalline host. A method for extracting a fast and slow time-resolved emission spectrum from the two observed local environments in the polycrystalline host is also presented.",

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T1 - Influence of TiO2 host crystallinity on Er3+ light emission

AU - Johannsen, Sabrina Rostgaard

AU - Nielsen, Søren Roesgaard

AU - Julsgaard, Brian

AU - Ferreira, R. A. S.

AU - Chevallier, Jacques

AU - Balling, Peter

AU - Ram, Sanjay

AU - Larsen, Arne Nylandsted

PY - 2016/5/1

Y1 - 2016/5/1

N2 - This work presents a study of the luminescence properties of Er 3+ when included into two different TiO 2 hosts: A polycrystalline and an amorphous host. The two host environments were produced by depositing two thin films with different Er 3+ concentration using radio-frequency magnetron sputtering. Structural analysis revealed the presence of the rutile and anatase phases in the polycrystalline film. Time-resolved and steadystate photoluminescence measurements evidenced the presence of two distinct local Er 3+ environments in the polycrystalline host. For the amorphous TiO 2 host, only one Er 3+ environment was observed, which differed from the two environments in the polycrystalline host. A method for extracting a fast and slow time-resolved emission spectrum from the two observed local environments in the polycrystalline host is also presented.

AB - This work presents a study of the luminescence properties of Er 3+ when included into two different TiO 2 hosts: A polycrystalline and an amorphous host. The two host environments were produced by depositing two thin films with different Er 3+ concentration using radio-frequency magnetron sputtering. Structural analysis revealed the presence of the rutile and anatase phases in the polycrystalline film. Time-resolved and steadystate photoluminescence measurements evidenced the presence of two distinct local Er 3+ environments in the polycrystalline host. For the amorphous TiO 2 host, only one Er 3+ environment was observed, which differed from the two environments in the polycrystalline host. A method for extracting a fast and slow time-resolved emission spectrum from the two observed local environments in the polycrystalline host is also presented.

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DO - 10.1364/OME.6.001664

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JO - Optical Materials Express

JF - Optical Materials Express

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Influence of TiO₂ host crystallinity on Er³⁺ light emission

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