Blue and red up-conversion light emission in TM-doped A2B2O7 oxides

Zhang, Boyu; Dewasurendra, Samath; Zhang, F. X.

doi:10.1016/j.matlet.2016.01.138

Title: Blue and red up-conversion light emission in TM-doped A₂B₂O₇ oxides

Abstract

The crystal structure and light emission property of Yb/Tm doped gadolinium titanate and gadolinium zirconate with chemical composition of A₂B₂O₇ were studied by x-ray diffraction (XRD) and optical spectroscopy measurements, respectively. XRD results suggest that the rare earth titanates have an ordered pyrochlore structure and a defect-fluorite structure for the zirconates. Photoluminescence activated with 1064 nm infrared laser light shows different light emission behaviors for the titanate and zirconate samples, which is related to the different site occupancy of Tm³⁺ in the lattice of the samples. Only a weak near-infrared (NIR) (~800 nm) light emission was observed in the titanate samples while a strong blue and red up-conversion emission was detected in the Tm³⁺-doped zirconate samples. As a result, the strong blue and red emission is due to the 7-fold coordinated Tm³⁺ in the structure.

Authors:

Zhang, Boyu ^[1]; Dewasurendra, Samath ^[2]; Zhang, F. X. ^[2]

The Ohio State Univ., Columbus, OH (United States)
Univ. of Michigan, Ann Arbor, MI (United States)

Publication Date:: Mon Feb 01 00:00:00 EST 2016

Research Org.:: Univ. of Michigan, Ann Arbor, MI (United States)

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA)

OSTI Identifier:: 1289955

Alternate Identifier(s):: OSTI ID: 1359533

Grant/Contract Number:: NA0001977

Resource Type:: Accepted Manuscript

Journal Name:: Materials Letters

Additional Journal Information:: Journal Volume: 170; Journal Issue: C; Journal ID: ISSN 0167-577X

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; light emission; pyrochlore; defects

Citation Formats


                    Zhang, Boyu, Dewasurendra, Samath, and Zhang, F. X. Blue and red up-conversion light emission in TM-doped A2B2O7 oxides.  United States: N. p., 2016. 
Web.  doi:10.1016/j.matlet.2016.01.138.

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                    Zhang, Boyu, Dewasurendra, Samath, & Zhang, F. X. Blue and red up-conversion light emission in TM-doped A2B2O7 oxides.  United States.  https://doi.org/10.1016/j.matlet.2016.01.138

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                    Zhang, Boyu, Dewasurendra, Samath, and Zhang, F. X. Mon .  
"Blue and red up-conversion light emission in TM-doped A2B2O7 oxides".  United States.  https://doi.org/10.1016/j.matlet.2016.01.138.  https://www.osti.gov/servlets/purl/1289955.

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@article{osti_1289955,

  title        = {Blue and red up-conversion light emission in TM-doped A2B2O7 oxides},

  author       = {Zhang, Boyu and Dewasurendra, Samath and Zhang, F. X.},

  abstractNote = {The crystal structure and light emission property of Yb/Tm doped gadolinium titanate and gadolinium zirconate with chemical composition of A2B2O7 were studied by x-ray diffraction (XRD) and optical spectroscopy measurements, respectively. XRD results suggest that the rare earth titanates have an ordered pyrochlore structure and a defect-fluorite structure for the zirconates. Photoluminescence activated with 1064 nm infrared laser light shows different light emission behaviors for the titanate and zirconate samples, which is related to the different site occupancy of Tm3+ in the lattice of the samples. Only a weak near-infrared (NIR) (~800 nm) light emission was observed in the titanate samples while a strong blue and red up-conversion emission was detected in the Tm3+-doped zirconate samples. As a result, the strong blue and red emission is due to the 7-fold coordinated Tm3+ in the structure.},

  doi          = {10.1016/j.matlet.2016.01.138},

  journal      = {Materials Letters},

  number       = C,

  volume       = 170,

  place        = {United States},

  year         = {Mon Feb 01 00:00:00 EST 2016},

  month        = {Mon Feb 01 00:00:00 EST 2016}

}

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Thermally Induced Disorder–Order Phase Transition of Gd ₂ Hf ₂ O ₇ :Eu ³⁺ Nanoparticles and Its Implication on Photo- and Radioluminescence
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Title: Blue and red up-conversion light emission in TM-doped A2B2O7 oxides

Abstract

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Title: Blue and red up-conversion light emission in TM-doped A₂B₂O₇ oxides

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