Near-Infrared-to-Green Upconversion in Yb³⁺/Er³⁺ Co-Doped BaYF₅ by Chemical Co-Precipitation Method

Abstract:

Barium yttrium fluorides ( BaYF5 ) co-doped with Er3+ and Yb3+ were synthesized by the chemical co-precipitation method and the structural and optical properties of solution-processed Er3+/Yb3+ co-doped BaYF5 were characterized. Intense visible emissions centered at around 523, 546 and 658 nm, originated from the transitions of 2H11/2 → 4I15/2, 4S3/2 → 4I15/2, and 4F9/2 → 4I15/2 of Er3+, respectively, have been observed in samples upon excitation with a 980nm laser diode, and the involved mechanisms have been explained.

• Periodical: Materials Science Forum (Volumes 663-665)
• Pages: 328-331
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.663-665.328
• Online since: November 2010
• Authors: Hai Yan Du, Wei Hang Zhang, Jia Yue Sun
• Keywords: Chemical Co-Precipitation Method, Energy Transfer, Luminescence Property

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