Enhanced near-infrared emission of Er3+ as a synergistic effect of energy transfers in Bi3TeBO9:Yb3+/Er3+ phosphors

Taras Zhezhera; Paweł Głuchowski; Marek Nowicki; Maciej Chrunik; Andrzej Majchrowski; Dobrosława Kasprowicz

doi:10.1016/j.jlumin.2023.119774

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Strona główna / Publikacje / Enhanced near-infrared emission of Er3+ as a synergistic effect of energy transfers in Bi3TeBO9:Yb3+/Er3+ phosphors

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Artykuł

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Tytuł

Enhanced near-infrared emission of Er3+ as a synergistic effect of energy transfers in Bi3TeBO9:Yb3+/Er3+ phosphors

Autorzy

Taras Zhezhera (WIMiFT) ^{[ 1 ][ 2.8 ][ P ]}
Paweł Głuchowski
Marek Nowicki (WIMiFT) ^{[ 2 ][ 2.8 ][ P ]}
Maciej Chrunik
Andrzej Majchrowski
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 ]} pracownik

Dyscyplina naukowa (Ustawa 2.0)

[2.8] Inżynieria materiałowa

Rok publikacji

2023

Opublikowano w

Journal of Luminescence

Rocznik: 2023 | Tom: vol. 258

Typ artykułu

artykuł naukowy

Język publikacji

angielski

Słowa kluczowe

EN

Bi3TeBO9
luminescence
rare earth ions
spectral converters
solar cells

Streszczenie

EN Enhanced near-infrared emission at 1531 nm of Er3+ ions excited by Bi3+ and/or Yb3+ ions was revealed in Bi3TeBO9:Yb3+/Er3+ phosphors. The microcrystalline powders investigated: Bi3TeBO9:Er3+, Bi3TeBO9:Yb3+ and Bi3TeBO9:Yb3+/Er3+ were synthesized by means of the modified Pechini method. Their hexagonal structure with P63 space group was confirmed by XRD measurements. The morphology of the above-mentioned samples was analyzed using SEM technique. The results of μ-Raman investigations showed low phonon energy of Bi3TeBO9 matrix. The characteristic Er3+ emission at 1531 nm assigned to the 4I13/2 → 4I15/2 transition in Bi3TeBO9:Er3+ and Bi3TeBO9:Yb3+/Er3+ powders was excited by Bi3+ or Yb3+ ions (the 1S0 → 3P1 or 2F7/2 → 2F5/2 transitions) upon their excitation at 327 or 975 nm, respectively. It was revealed that the effective energy transfer from the excited Bi3+ ions (at 327 nm) directly to Er3+ ions or indirectly to Er3+ ions both via the excitation of Bi3+ ions in VIS range or excitation of Yb3+ ions in the NIR range results in synergistic effect, which produces enhanced emission at 1531 nm of Er3+ ions in Bi3TeBO9:Yb3+/Er3+ system. Moreover, it was found that the effective energy transfer from the excited Yb3+ ions (at 975 nm) directly to Er3+ ions results in the efficient emission at 1531 nm of Er3+ ions. Furthermore, the calculations of energy transfer efficiency and quantum efficiency proved the effective energy transfer from Bi3+ to Yb3+ and from Yb3+ to Er3+ ions. The corresponding mechanisms of energy transfer processes in the investigated materials were discussed on the basis of reflectance, excitation and emission spectra and measured decay times. The results indicate a potential of the use of Bi3TeBO9:Yb3+/Er3+ powders as spectral converters in new generation of photovoltaic devices.

Data udostępnienia online

05.03.2023

Strony (od-do)

119774-1 - 119774-10

DOI

10.1016/j.jlumin.2023.119774

URL

https://www.sciencedirect.com/science/article/pii/S0022231323001072?via%3Dihub

Uwagi

Article number: 119774

Typ licencji

Czasopismo hybrydowe