Near-infrared luminescence of ferric oxide particles

Jun Wang; William B. White; James H. Adair

doi:10.1016/j.matlet.2005.12.070

Near-infrared luminescence of ferric oxide particles

Jun Wang, William B. White, James H. Adair

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6 Scopus citations

Abstract

A weak near-infrared luminescence has been observed for fine-particle Fe₂O₃ when excited by 1064 nm radiation from a Nd:YAG laser. There are three broad luminescence peaks at 7994, 7225 and 6686 cm^{- 1}, with intensities about 10 times that of the Raman scattering. The relative intensities vary with particle morphology and with heat treatment. Overall band intensities increase by about a factor of 10 for Fe₂O₃ that has been heated to 500 °C and the decreases again for material that has been heated to 1000 °C. The emission was assigned to the ⁴T_1g→⁶A_1g crystal field transition of octahedral Fe³⁺. A large Stokes shift is associated with these transitions.

Original language	English (US)
Pages (from-to)	2013-2016
Number of pages	4
Journal	Materials Letters
Volume	60
Issue number	16
DOIs	https://doi.org/10.1016/j.matlet.2005.12.070
State	Published - Jul 2006

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.matlet.2005.12.070

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title = "Near-infrared luminescence of ferric oxide particles",

abstract = "A weak near-infrared luminescence has been observed for fine-particle Fe2O3 when excited by 1064 nm radiation from a Nd:YAG laser. There are three broad luminescence peaks at 7994, 7225 and 6686 cm- 1, with intensities about 10 times that of the Raman scattering. The relative intensities vary with particle morphology and with heat treatment. Overall band intensities increase by about a factor of 10 for Fe2O3 that has been heated to 500 °C and the decreases again for material that has been heated to 1000 °C. The emission was assigned to the 4T1g→6A1g crystal field transition of octahedral Fe3+. A large Stokes shift is associated with these transitions.",

author = "Jun Wang and White, {William B.} and Adair, {James H.}",

note = "Funding Information: Thanks are given to Professor Peter Eklund and Dr. Gugang Chen for their assistance with the spectroscopic measurements. The financial support of the NSF Particulate Materials Center at the Pennsylvania State University is gratefully acknowledged. A portion of this work was funded by the Estee Lauder Corporation through the Particulate Materials Center.",

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doi = "10.1016/j.matlet.2005.12.070",

language = "English (US)",

volume = "60",

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journal = "Materials Letters",

issn = "0167-577X",

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T1 - Near-infrared luminescence of ferric oxide particles

AU - Wang, Jun

AU - White, William B.

AU - Adair, James H.

N1 - Funding Information: Thanks are given to Professor Peter Eklund and Dr. Gugang Chen for their assistance with the spectroscopic measurements. The financial support of the NSF Particulate Materials Center at the Pennsylvania State University is gratefully acknowledged. A portion of this work was funded by the Estee Lauder Corporation through the Particulate Materials Center.

PY - 2006/7

Y1 - 2006/7

N2 - A weak near-infrared luminescence has been observed for fine-particle Fe2O3 when excited by 1064 nm radiation from a Nd:YAG laser. There are three broad luminescence peaks at 7994, 7225 and 6686 cm- 1, with intensities about 10 times that of the Raman scattering. The relative intensities vary with particle morphology and with heat treatment. Overall band intensities increase by about a factor of 10 for Fe2O3 that has been heated to 500 °C and the decreases again for material that has been heated to 1000 °C. The emission was assigned to the 4T1g→6A1g crystal field transition of octahedral Fe3+. A large Stokes shift is associated with these transitions.

AB - A weak near-infrared luminescence has been observed for fine-particle Fe2O3 when excited by 1064 nm radiation from a Nd:YAG laser. There are three broad luminescence peaks at 7994, 7225 and 6686 cm- 1, with intensities about 10 times that of the Raman scattering. The relative intensities vary with particle morphology and with heat treatment. Overall band intensities increase by about a factor of 10 for Fe2O3 that has been heated to 500 °C and the decreases again for material that has been heated to 1000 °C. The emission was assigned to the 4T1g→6A1g crystal field transition of octahedral Fe3+. A large Stokes shift is associated with these transitions.

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VL - 60

SP - 2013

EP - 2016

JO - Materials Letters

JF - Materials Letters

IS - 16

ER -

Near-infrared luminescence of ferric oxide particles

Abstract

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