Enhancement of Yb3+ Emission in Bi3TeBO9 through Efficient Energy Transfer from Bi3+ Ions

Taras Zhezhera; Paweł Głuchowski; Marek Nowicki; Maciej Chrunik; Barbara Szczęśniak; Dobrosława Kasprowicz

doi:10.1021/acs.jpcc.4c04134

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Title

Enhancement of Yb3+ Emission in Bi3TeBO9 through Efficient Energy Transfer from Bi3+ Ions

Authors

Taras Zhezhera (WIMiFT) ^{[ 1 ][ 2.8 ][ P ]}
Paweł Głuchowski
Marek Nowicki (WIMiFT) ^{[ 2 ][ 2.8 ][ P ]}
Maciej Chrunik
Barbara Szczęśniak
Dobrosława Kasprowicz (WIMiFT) ^{[ 1 ][ 2.8 ][ P ]}

^{[ 1 ]} Instytut Badań Materiałowych i Inżynierii Kwantowej, Wydział Inżynierii Materiałowej i Fizyki Technicznej, Politechnika Poznańska | ^{[ 2 ]} Instytut Fizyki, Wydział Inżynierii Materiałowej i Fizyki Technicznej, Politechnika Poznańska | ^{[ P ]} employee

Scientific discipline (Law 2.0)

[2.8] Materials engineering

Year of publication

2024

Published in

The Journal of Physical Chemistry C

Journal year: 2024 | Journal volume: vol. 128 | Journal number: iss. 34

Article type

scientific article

Publication language

english

Keywords

EN

Grain
Granular materials
Ions
Solar cells
Solar energy

Abstract

EN An efficient near-infrared emission of Yb3+ ions sensitized by Bi3+ ions was revealed in Bi3TeBO9:Yb3+ microcrystalline powders. Bi3TeBO9:Yb3+ doped with different concentrations of Yb3+ ions (0.5, 1.0, 2.5, 4.0, and 7.5 at %) were synthesized by means of the modified Pechini method. The structure, morphology, and elemental composition of samples were investigated using X-ray diffraction, scanning electron microscopy, and energy-dispersive X-ray spectroscopy techniques. The μ-Raman spectroscopic measurements of Bi3TeBO9:Yb3+ allowed us to determine the energy vibrations of characteristic molecular groups BO3 and TeO6 present in the Bi3TeBO9 matrix. Emissions of Bi3TeBO9:Yb3+ powders were measured upon excitation at 330 nm by Bi3+ ions (the 1S0 → 3P1 transition) in VIS (Bi3+ ions emission assigned to the 3P0 → 1S0 transition) and NIR (Yb3+ ions emission assigned to the 2F5/2 → 2F7/2) spectral ranges. In particular, the strongest emission band of Yb3+ ions at 975 nm was observed in the spectrum of Bi3TeBO9:Yb3+ doped with 4.0 at % of Yb3+ ions. This suggests that Bi3+ ions present in the Bi3TeBO9 matrix can be used as a UV absorption sensitizer for Yb3+ ions in the considered systems. Moreover, the decay times of 3P0 → 1S0 transitions of Bi3+ ions (emission in VIS with maximum at 550 nm) and 2F5/2 → 2F7/2 transitions of Yb3+ ions (emission in NIR at 975 nm) upon excitation at 330 nm were measured. The calculated energy transfer efficiency and quantum efficiency coefficients confirmed the effective energy transfer from Bi3+ to Yb3+ ions in the Bi3TeBO9:Yb3+ system. The obtained results show that Bi3TeBO9:Yb3+ powders, as efficient UV to NIR spectral converters, can be potentially used in c-Si solar cell technology, enhancing the photovoltaic effect.

Pages (from - to)

14357 - 14367

DOI

10.1021/acs.jpcc.4c04134

License type

CC BY (attribution alone)

Open Access Mode

open journal

Open Access Text Version

final published version

Date of Open Access to the publication

at the time of publication