Infrared to visible upconversion luminescence of trivalent erbium tetrafluoroborate complexes

Karina Nigoghossian; Tsumugi Miyashita; Asuto Omura; Gil Yeroslavsky; Doan Thi Kim Dung; Kyohei Okubo; Masakazu Umezawa; Masao Kamimura; Kohei Soga

doi:10.1364/OME.395626

Infrared to visible upconversion luminescence of trivalent erbium tetrafluoroborate complexes

Karina Nigoghossian, Tsumugi Miyashita, Asuto Omura, Gil Yeroslavsky, Doan Thi Kim Dung, Kyohei Okubo, Masakazu Umezawa, Masao Kamimura, Kohei Soga

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

Upconverting erbium(III) complexes in N, N-dimethylformamide (DMF) were prepared via chloride ligand replacement by tetrafluoroborate, as suggested by changes in the spectral profile. Cl^- removal as precipitated salts was evidenced by X-ray diffraction (XRD) analysis. The systematic spectroscopic work indicated optimal condition for complex preparation. Ions in the coordination site were controlled by adjusting the water phase, thus the amount of removed chloride salts. Maximum emission intensity, lower red-to-green ratio and narrower emission lines were achieved at molar ratios Er³⁺:BF₄^- = 1:7 and H₂O:DMF = 0.23. Studies extended to downshifted luminescence of Eu³⁺-complex provided more evidences of effective BF₄^- coordination, through dependence of relative intensities between ⁵D₀ electric dipole and magnetic dipole (⁵D₀→⁷F₁) transitions. Infrared spectra suggest BF₄^- coordination to RE.

Original language	English
Pages (from-to)	1749-1766
Number of pages	18
Journal	Optical Materials Express
Volume	10
Issue number	10
DOIs	https://doi.org/10.1364/OME.395626
State	Published - 1 Jul 2020
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2020 Optical Society of America.

Funding

Ministry of Education, Culture, Sports, Science and Technology (15H05950, S1511012); Japan Science and Technology Agency.

Funders	Funder number
Ministry of Education, Culture, Sports, Science and Technology	15H05950, S1511012
Japan Science and Technology Agency

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title = "Infrared to visible upconversion luminescence of trivalent erbium tetrafluoroborate complexes",

abstract = "Upconverting erbium(III) complexes in N, N-dimethylformamide (DMF) were prepared via chloride ligand replacement by tetrafluoroborate, as suggested by changes in the spectral profile. Cl- removal as precipitated salts was evidenced by X-ray diffraction (XRD) analysis. The systematic spectroscopic work indicated optimal condition for complex preparation. Ions in the coordination site were controlled by adjusting the water phase, thus the amount of removed chloride salts. Maximum emission intensity, lower red-to-green ratio and narrower emission lines were achieved at molar ratios Er3+:BF4- = 1:7 and H2O:DMF = 0.23. Studies extended to downshifted luminescence of Eu3+-complex provided more evidences of effective BF4- coordination, through dependence of relative intensities between 5D0 electric dipole and magnetic dipole (5D0→7F1) transitions. Infrared spectra suggest BF4- coordination to RE.",

author = "Karina Nigoghossian and Tsumugi Miyashita and Asuto Omura and Gil Yeroslavsky and {Kim Dung}, {Doan Thi} and Kyohei Okubo and Masakazu Umezawa and Masao Kamimura and Kohei Soga",

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year = "2020",

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doi = "10.1364/OME.395626",

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T1 - Infrared to visible upconversion luminescence of trivalent erbium tetrafluoroborate complexes

AU - Nigoghossian, Karina

AU - Miyashita, Tsumugi

AU - Omura, Asuto

AU - Yeroslavsky, Gil

AU - Kim Dung, Doan Thi

AU - Okubo, Kyohei

AU - Umezawa, Masakazu

AU - Kamimura, Masao

AU - Soga, Kohei

PY - 2020/7/1

Y1 - 2020/7/1

N2 - Upconverting erbium(III) complexes in N, N-dimethylformamide (DMF) were prepared via chloride ligand replacement by tetrafluoroborate, as suggested by changes in the spectral profile. Cl- removal as precipitated salts was evidenced by X-ray diffraction (XRD) analysis. The systematic spectroscopic work indicated optimal condition for complex preparation. Ions in the coordination site were controlled by adjusting the water phase, thus the amount of removed chloride salts. Maximum emission intensity, lower red-to-green ratio and narrower emission lines were achieved at molar ratios Er3+:BF4- = 1:7 and H2O:DMF = 0.23. Studies extended to downshifted luminescence of Eu3+-complex provided more evidences of effective BF4- coordination, through dependence of relative intensities between 5D0 electric dipole and magnetic dipole (5D0→7F1) transitions. Infrared spectra suggest BF4- coordination to RE.

AB - Upconverting erbium(III) complexes in N, N-dimethylformamide (DMF) were prepared via chloride ligand replacement by tetrafluoroborate, as suggested by changes in the spectral profile. Cl- removal as precipitated salts was evidenced by X-ray diffraction (XRD) analysis. The systematic spectroscopic work indicated optimal condition for complex preparation. Ions in the coordination site were controlled by adjusting the water phase, thus the amount of removed chloride salts. Maximum emission intensity, lower red-to-green ratio and narrower emission lines were achieved at molar ratios Er3+:BF4- = 1:7 and H2O:DMF = 0.23. Studies extended to downshifted luminescence of Eu3+-complex provided more evidences of effective BF4- coordination, through dependence of relative intensities between 5D0 electric dipole and magnetic dipole (5D0→7F1) transitions. Infrared spectra suggest BF4- coordination to RE.

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SN - 2159-3930

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SP - 1749

EP - 1766

JO - Optical Materials Express

JF - Optical Materials Express

IS - 10

ER -

Infrared to visible upconversion luminescence of trivalent erbium tetrafluoroborate complexes

Abstract

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