Mechanisms and absolute quantum yield of upconversion luminescence of fluoride phosphors

A. A. Lyapin; S. V. Gushchin; A. S. Ermakov; S. V. Kuznetsov; P. A. Ryabochkina; V. Yu. Proydakova; V. V. Voronov; P. P. Fedorov; M. V. Chernov

doi:10.3788/COL201816.091901

Chinese Optics Letters, Volume. 16, Issue 9, 091901(2018)

Mechanisms and absolute quantum yield of upconversion luminescence of fluoride phosphors

A. A. Lyapin^1、*, S. V. Gushchin¹, A. S. Ermakov¹, S. V. Kuznetsov², P. A. Ryabochkina¹, V. Yu. Proydakova², V. V. Voronov², P. P. Fedorov², and M. V. Chernov¹

Author Affiliations

¹National Research Ogarev Mordovia State University, Saransk 430005, Mordovia, Russia

²Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow 119991, Russia

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Figures & Tables(6)

Fig. 1. UCL spectra of SrF2:Er (14.2 mol.%) in the visible and near-infrared spectral ranges.

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Fig. 2. Absorption transition, luminescence transitions, and UC mechanisms of Er3+ ions in SrF2:Er.

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Fig. 3. Luminescence rise and decay from (a) H29/2, (b) H211/2, (c) S43/2, (d) F49/2, (e) G411/2, F45/2, F47/2 levels of Er3+ ions in SrF2:Er.

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Fig. 4. P-dependent UCL at the (a) S43/2→I415/2 and (b) F49/2→I415/2 transitions of Er3+ ions. The diagram is in a double logarithmic scale.

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Fig. 5. (a) Spectral power of the UCL of SrF2:Er. (b) The CIE chromaticity diagram of SrF2:Er. The excitation power density is 63 W/cm2.

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Table 1. Quantum Yields, Chromaticity Coordinates x, y and Color Temperature T of SrF2:Er Phosphors

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Table 1. Quantum Yields, Chromaticity Coordinates x, y and Color Temperature T of SrF2:Er Phosphors

$E r^{3 +} concentration$ (mol.%)	P ( $W / {cm}^{2}$ )	$Φ_{UC}$ (%)	$x$	$y$	T (K)
1.6	25	–	0.3497	0.3548	4838
	63	–	0.3463	0.3470	4936
3.4	25	0.02	0.3498	0.3599	4858
	63	0.09	0.3515	0.3643	4814
6.0	25	0.10	0.3507	0.3722	4892
	63	0.16	0.3586	0.3888	4692
8.8	25	0.14	0.3527	0.4207	4961
	63	0.17	0.3639	0.4268	4695
14.2	25	0.17	0.3602	0.4795	4922
	63	0.28	0.3665	0.4753	4782
18.3	25	0.06	0.3546	0.4118	4887
	63	0.09	0.3627	0.3924	4589
21.3	25	0.03	0.3461	0.3765	5041
	63	0.04	0.3533	0.3712	4783

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A. A. Lyapin, S. V. Gushchin, A. S. Ermakov, S. V. Kuznetsov, P. A. Ryabochkina, V. Yu. Proydakova, V. V. Voronov, P. P. Fedorov, M. V. Chernov, "Mechanisms and absolute quantum yield of upconversion luminescence of fluoride phosphors," Chin.Opt.Lett. 16, 091901 (2018)

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Paper Information

Category: Nonlinear Optics

Received: May. 19, 2018

Accepted: Jul. 25, 2018

Posted: Jul. 26, 2018

Published Online: Sep. 6, 2018

The Author Email: A. A. Lyapin (andrei_lyapin@mail.ru)

DOI:10.3788/COL201816.091901

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