Determination of the refractive index of β-NaYF
            4/Yb
            3+/Er
            3+/Tm
            3+ nanocrystals using spectroscopic refractometry

V. I. Sokolov; A. V. Zvyagin; S. M. Igumnov; S. I. Molchanova; M. M. Nazarov; A. V. Nechaev; A. G. Savelyev; A. A. Tyutyunov; E. V. Khaydukov; V. Ya Panchenko

doi:10.1134/S0030400X15040190

Determination of the refractive index of β-NaYF ₄/Yb ³⁺/Er ³⁺/Tm ³⁺ nanocrystals using spectroscopic refractometry

V. I. Sokolov, A. V. Zvyagin, S. M. Igumnov, S. I. Molchanova, M. M. Nazarov, A. V. Nechaev, A. G. Savelyev, A. A. Tyutyunov, E. V. Khaydukov, V. Ya Panchenko

Research output: Contribution to journal › Article

22 Citations (Scopus)

Abstract

A method for measuring refractive index n of nanosize particles in the visible and near-IR spectral ranges is proposed. The method is based on comparing refractive index n_colloid of a colloid solution of nanoparticles in several solvents with refractive indices n_solvent of corresponding pure solvents and has an accuracy of ±2 × 10⁻⁴. Upconversion nanosize phosphors (UCNPs) are synthesized in the form of a β-NaYF₄ crystalline matrix doped with Yb³⁺, Er³⁺, and Tm³⁺ rare earth ions. UCNPs have a doped core with a diameter of 40 ± 5 nm and undoped shell with a thickness of 3–5 nm. Synthesized nanocrystals possess intense photoluminescence in the blue, green, and red spectral ranges upon excitation by IR radiation with a wavelength of 977 nm. Using a spectroscopic refractometer, the dispersion of the refractive index of β-NaYF₄/Yb³⁺/Er³⁺/Tm³⁺ nanocrystals was measured for the first time in the spectral range of 450–1000 nm with an accuracy of ±2 × 10⁻⁴.

Original language	English
Pages (from-to)	609-613
Number of pages	5
Journal	Optics and Spectroscopy (English translation of Optika i Spektroskopiya)
Volume	118
Issue number	4
DOIs	https://doi.org/10.1134/S0030400X15040190
Publication status	Published - 1 Apr 2015
Externally published	Yes

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Sokolov, V. I., Zvyagin, A. V., Igumnov, S. M., Molchanova, S. I., Nazarov, M. M., Nechaev, A. V., ... Panchenko, V. Y. (2015). Determination of the refractive index of β-NaYF ₄/Yb ³⁺/Er ³⁺/Tm ³⁺ nanocrystals using spectroscopic refractometry. Optics and Spectroscopy (English translation of Optika i Spektroskopiya), 118(4), 609-613. https://doi.org/10.1134/S0030400X15040190

Sokolov, V. I. ; Zvyagin, A. V. ; Igumnov, S. M. ; Molchanova, S. I. ; Nazarov, M. M. ; Nechaev, A. V. ; Savelyev, A. G. ; Tyutyunov, A. A. ; Khaydukov, E. V. ; Panchenko, V. Ya. / Determination of the refractive index of β-NaYF ₄/Yb ³⁺/Er ³⁺/Tm ³⁺ nanocrystals using spectroscopic refractometry. In: Optics and Spectroscopy (English translation of Optika i Spektroskopiya). 2015 ; Vol. 118, No. 4. pp. 609-613.

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title = "Determination of the refractive index of β-NaYF 4/Yb 3+/Er 3+/Tm 3+ nanocrystals using spectroscopic refractometry",

abstract = "A method for measuring refractive index n of nanosize particles in the visible and near-IR spectral ranges is proposed. The method is based on comparing refractive index ncolloid of a colloid solution of nanoparticles in several solvents with refractive indices nsolvent of corresponding pure solvents and has an accuracy of ±2 × 10−4. Upconversion nanosize phosphors (UCNPs) are synthesized in the form of a β-NaYF4 crystalline matrix doped with Yb3+, Er3+, and Tm3+ rare earth ions. UCNPs have a doped core with a diameter of 40 ± 5 nm and undoped shell with a thickness of 3–5 nm. Synthesized nanocrystals possess intense photoluminescence in the blue, green, and red spectral ranges upon excitation by IR radiation with a wavelength of 977 nm. Using a spectroscopic refractometer, the dispersion of the refractive index of β-NaYF4/Yb3+/Er3+/Tm3+ nanocrystals was measured for the first time in the spectral range of 450–1000 nm with an accuracy of ±2 × 10−4.",

author = "Sokolov, {V. I.} and Zvyagin, {A. V.} and Igumnov, {S. M.} and Molchanova, {S. I.} and Nazarov, {M. M.} and Nechaev, {A. V.} and Savelyev, {A. G.} and Tyutyunov, {A. A.} and Khaydukov, {E. V.} and Panchenko, {V. Ya}",

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Sokolov, VI, Zvyagin, AV, Igumnov, SM, Molchanova, SI, Nazarov, MM, Nechaev, AV, Savelyev, AG, Tyutyunov, AA, Khaydukov, EV & Panchenko, VY 2015, 'Determination of the refractive index of β-NaYF ₄/Yb ³⁺/Er ³⁺/Tm ³⁺ nanocrystals using spectroscopic refractometry', Optics and Spectroscopy (English translation of Optika i Spektroskopiya), vol. 118, no. 4, pp. 609-613. https://doi.org/10.1134/S0030400X15040190

Determination of the refractive index of β-NaYF ₄/Yb ³⁺/Er ³⁺/Tm ³⁺ nanocrystals using spectroscopic refractometry. / Sokolov, V. I.; Zvyagin, A. V.; Igumnov, S. M.; Molchanova, S. I.; Nazarov, M. M.; Nechaev, A. V.; Savelyev, A. G.; Tyutyunov, A. A.; Khaydukov, E. V.; Panchenko, V. Ya.

In: Optics and Spectroscopy (English translation of Optika i Spektroskopiya), Vol. 118, No. 4, 01.04.2015, p. 609-613.

Research output: Contribution to journal › Article

TY - JOUR

T1 - Determination of the refractive index of β-NaYF 4/Yb 3+/Er 3+/Tm 3+ nanocrystals using spectroscopic refractometry

AU - Sokolov, V. I.

AU - Zvyagin, A. V.

AU - Igumnov, S. M.

AU - Molchanova, S. I.

AU - Nazarov, M. M.

AU - Nechaev, A. V.

AU - Savelyev, A. G.

AU - Tyutyunov, A. A.

AU - Khaydukov, E. V.

AU - Panchenko, V. Ya

PY - 2015/4/1

Y1 - 2015/4/1

N2 - A method for measuring refractive index n of nanosize particles in the visible and near-IR spectral ranges is proposed. The method is based on comparing refractive index ncolloid of a colloid solution of nanoparticles in several solvents with refractive indices nsolvent of corresponding pure solvents and has an accuracy of ±2 × 10−4. Upconversion nanosize phosphors (UCNPs) are synthesized in the form of a β-NaYF4 crystalline matrix doped with Yb3+, Er3+, and Tm3+ rare earth ions. UCNPs have a doped core with a diameter of 40 ± 5 nm and undoped shell with a thickness of 3–5 nm. Synthesized nanocrystals possess intense photoluminescence in the blue, green, and red spectral ranges upon excitation by IR radiation with a wavelength of 977 nm. Using a spectroscopic refractometer, the dispersion of the refractive index of β-NaYF4/Yb3+/Er3+/Tm3+ nanocrystals was measured for the first time in the spectral range of 450–1000 nm with an accuracy of ±2 × 10−4.

AB - A method for measuring refractive index n of nanosize particles in the visible and near-IR spectral ranges is proposed. The method is based on comparing refractive index ncolloid of a colloid solution of nanoparticles in several solvents with refractive indices nsolvent of corresponding pure solvents and has an accuracy of ±2 × 10−4. Upconversion nanosize phosphors (UCNPs) are synthesized in the form of a β-NaYF4 crystalline matrix doped with Yb3+, Er3+, and Tm3+ rare earth ions. UCNPs have a doped core with a diameter of 40 ± 5 nm and undoped shell with a thickness of 3–5 nm. Synthesized nanocrystals possess intense photoluminescence in the blue, green, and red spectral ranges upon excitation by IR radiation with a wavelength of 977 nm. Using a spectroscopic refractometer, the dispersion of the refractive index of β-NaYF4/Yb3+/Er3+/Tm3+ nanocrystals was measured for the first time in the spectral range of 450–1000 nm with an accuracy of ±2 × 10−4.

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U2 - 10.1134/S0030400X15040190

DO - 10.1134/S0030400X15040190

M3 - Article

VL - 118

SP - 609

EP - 613

JO - Optics and Spectroscopy (English translation of Optika i Spektroskopiya)

JF - Optics and Spectroscopy (English translation of Optika i Spektroskopiya)

SN - 0030-400X

IS - 4

ER -

Sokolov VI, Zvyagin AV, Igumnov SM, Molchanova SI, Nazarov MM, Nechaev AV et al. Determination of the refractive index of β-NaYF ₄/Yb ³⁺/Er ³⁺/Tm ³⁺ nanocrystals using spectroscopic refractometry. Optics and Spectroscopy (English translation of Optika i Spektroskopiya). 2015 Apr 1;118(4):609-613. https://doi.org/10.1134/S0030400X15040190