Tạp chí Khoa học Đại học Huế: Khoa học Tự nhiên (Jun 2023)

Energy-transfer phenomenon and color-tunable properties of Ca2Al2SiO7: Dy3+/Eu3+ phosphors

  • Do Thanh Tien,
  • Nguyen Manh Son,
  • Nguyen Dang Nhat,
  • Ho Van Tuyen,
  • Le Xuan Diem Ngoc,
  • Tran Quoc Toan

DOI
https://doi.org/10.26459/hueunijns.v132i1B.6816
Journal volume & issue
Vol. 132, no. 1B

Abstract

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Ca2Al2SiO7 (CAS) doped with Eu3+ and Dy3+ was successfully synthesised with the solid-phase reaction method, in which the sample was sintered at 1,280 °C for one hour. The energy-transfer phenomenon from Dy3+ to Eu3+ was observed in the CAS matrix. The optimal doping concentration of Dy3+ and Eu3+ is 1.5 and 1% mol. In addition, the energy-transfer mechanism, CIE colour coordinate, and CCT colour temperature of CAS/Dy3+/Eu3+ were also presented and discussed.

Keywords