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Cooperative downconversion and near infrared luminescence of Tm3+/Yb3+ codoped Calcium Scandate phosphor

An efficient near infrared (NIR) quantum cutting in CaSc2O4: Tm3+/Yb3+ phosphor has been demonstrated by the visible and NIR spectra properties as well as the decay curves of Tm3+:1G4 level. Upon excitation of Tm3+:1G4 level with a blue photon at 466 nm, Yb3+:2F5/2 level can emit two NIR photons aro... Full description

Journal Title: Journal of Alloys and Compounds 15 January 2014, Vol.583, pp.96-99
Main Author: Li, Jing
Other Authors: Zhang, Jiahua , Zhang, Xia , Hao, Zhendong , Luo, Yongshi
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0925-8388 ; E-ISSN: 1873-4669 ; DOI: 10.1016/j.jallcom.2013.08.125
Link: https://www.sciencedirect.com/science/article/pii/S092583881302001X
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recordid: elsevier_sdoi_10_1016_j_jallcom_2013_08_125
title: Cooperative downconversion and near infrared luminescence of Tm3+/Yb3+ codoped Calcium Scandate phosphor
format: Article
creator:
  • Li, Jing
  • Zhang, Jiahua
  • Zhang, Xia
  • Hao, Zhendong
  • Luo, Yongshi
subjects:
  • Near Infrared Quantum Cutting
  • Optical Properties
  • Energy Transfer
  • Oxide Materials
  • Engineering
  • Chemistry
  • Physics
ispartof: Journal of Alloys and Compounds, 15 January 2014, Vol.583, pp.96-99
description: An efficient near infrared (NIR) quantum cutting in CaSc2O4: Tm3+/Yb3+ phosphor has been demonstrated by the visible and NIR spectra properties as well as the decay curves of Tm3+:1G4 level. Upon excitation of Tm3+:1G4 level with a blue photon at 466 nm, Yb3+:2F5/2 level can emit two NIR photons around 1000 nm through cooperative energy transfer (ET) from Tm3+ to Yb3+ with the maximum energy transfer efficiency is 71%, and highest theoretical quantum efficiency reaches 171%, close to the limit of 200%. Because the energy of Yb3+ transition is matched well with band gap of crystalline silicon, the excellent downconversion luminescence property indicates that CaSc2O4:Tm3+/Yb3+ is a promising oxide material for increasing the conversion efficiency of crystalline silicon solar cells.
language: eng
source:
identifier: ISSN: 0925-8388 ; E-ISSN: 1873-4669 ; DOI: 10.1016/j.jallcom.2013.08.125
fulltext: fulltext
issn:
  • 0925-8388
  • 09258388
  • 1873-4669
  • 18734669
url: Link


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titleCooperative downconversion and near infrared luminescence of Tm3+/Yb3+ codoped Calcium Scandate phosphor
creatorLi, Jing ; Zhang, Jiahua ; Zhang, Xia ; Hao, Zhendong ; Luo, Yongshi
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subjectNear Infrared Quantum Cutting ; Optical Properties ; Energy Transfer ; Oxide Materials ; Engineering ; Chemistry ; Physics
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descriptionAn efficient near infrared (NIR) quantum cutting in CaSc2O4: Tm3+/Yb3+ phosphor has been demonstrated by the visible and NIR spectra properties as well as the decay curves of Tm3+:1G4 level. Upon excitation of Tm3+:1G4 level with a blue photon at 466 nm, Yb3+:2F5/2 level can emit two NIR photons around 1000 nm through cooperative energy transfer (ET) from Tm3+ to Yb3+ with the maximum energy transfer efficiency is 71%, and highest theoretical quantum efficiency reaches 171%, close to the limit of 200%. Because the energy of Yb3+ transition is matched well with band gap of crystalline silicon, the excellent downconversion luminescence property indicates that CaSc2O4:Tm3+/Yb3+ is a promising oxide material for increasing the conversion efficiency of crystalline silicon solar cells.
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