Near-infrared quantum cutting in Pr3+/Yb3+ codoped oxyfluoride aluminosilicate glasses

ZHOU Aihua; Song Feng; JU Danan; YANG Yingchun

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Near-infrared quantum cutting in Pr3+/Yb3+ codoped oxyfluoride aluminosilicate glasses

ZHOU Aihua #,Song Feng *,JU Danan,YANG Yingchun

School of Physics, Nankai university, Tianjin 300071

*Correspondence author

#Submitted by

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Funding: Specialized Research Fund for the Doctoral Program of Higher Education（No.20130031110010）, Natural Science Foundation of Tianjin, key project （No.17JCZDJC37800）, Natural Science Foundation of China（No.11674183）

Opened online:19 May 2017

Accepted by: none

Citation: ZHOU Aihua,Song Feng,JU Danan.Near-infrared quantum cutting in Pr3+/Yb3+ codoped oxyfluoride aluminosilicate glasses[OL]. [19 May 2017] http://en.paper.edu.cn/en_releasepaper/content/4734435

Near-infrared quantum cutting phenomenon has been demonstrated in Pr3+/Yb3+ co-doped oxyfluoride aluminosilicate glasses synthesized by a conventional melting-quenching method. The absorption spectra, emission spectra in visible and infrared regions and luminescence decay time have been investigated. Under 442 nm excitation, the visible and the near-infrared emission spectra reveal that the energy transfer occur from Pr3+ to Yb3+ ions, resulting in intense 980 nm near-IR emission and the first-order energy transfer is responsible for the downconverted luminescence. The efficiency of energy transfer from Pr3+ to Yb3+ is 60%, and the optimal quantum efficiency is 160%. In addition, the emission assigned to Yb3+:2F5/2→2F7/2 transition matches well with the band gap of single-junction, which have potential application in enhancing the conversion efficiency of crystalline Si solar cell.

Keywords:Photoluminescence; Oxyfluoride aluminosilicate glass; Quantum cutting

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