Microstructure, transmittance and upconversion luminescence of Y2O3:Er3+ translucent ceramics

• Autorzy: Guo Yanyan , Wu Xinghua , Wang Qingkai , Wang Dianyuan

Identyfikatory

DOI

10.2478/msp-2020-0018

• Języki publikacji: EN

Abstrakty

EN

Y₂O₃:Er³⁺ translucent ceramics was fabricated with addition of La(OH) ₃ nanopowder as a sintering aid. The influence of La(OH) ₃ addition on the microstructure, transmittance and upconversion luminescence of Y₂O₃:Er³⁺ ceramics was investigated in detail. The results show that the ceramics sample with 5 mol % La(OH)₃ additives exhibits finer microstructure with fewer pores and higher optical transmittance than others. It was proved that La(OH) ₃ additives could greatly reduce the porosity and improve the transparency of Y₂O₃:Er³⁺ ceramics. By using a 980 nm diode laser as a pumping source, the Y₂O₃:Er³⁺ ceramics gave bright visible upconversion luminescence, which was ascribed to the radiative transitions of ²H_11/2,⁴S_3/2 →⁴I_15/2 and ⁴F_9/2 →⁴I_15/2 of Er³⁺ ions, respectively. The possible upconversion mechanism has been proposed accordingly.

Słowa kluczowe

EN

ceramics; Y2O3; yttrium oxide; microstructure; upconversion luminescence

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2020
• Tom: Vol. 38, No. 1
• Strony: 159--164
• Opis fizyczny: Bibliogr. 28 poz., rys.

Twórcy

autor

Guo Yanyan

• Faculty of Mechanical and Materials Engineering, Jiujiang University, Jiujiang 332005, PR China

autor

Wu Xinghua

• College of Science, Jiujiang University, Jiujiang 332005, PR China

autor

Wang Qingkai

• College of Science, Jiujiang University, Jiujiang 332005, PR China

autor

Wang Dianyuan

• College of Science, Jiujiang University, Jiujiang 332005, PR China

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).