TY - JOUR
T1 - Novel and thermostable double-perovskite La2ZnTiO6
T2 - Sm3+, Dy3+ phosphors with high quantum efficiency
AU - Chang, Chao Yu
AU - Hsu, Tsung Hsien
AU - Huang, Cheng Liang
N1 - Funding Information:
This work was financially sponsored by the Ministry of Science and Technology of Taiwan under the projects MOST 110-2221-E-006-032-MY2 and MOST 111-2221-E-006-164-MY2. The authors would like to thank Ms. Hui–Jung Shih with the Instrument Center of National Cheng Kung University for supporting the use of high-resolution SEM (Hitachi SU8000). The authors also gratefully acknowledge the use of D8 Discover equipment belonging to the Instrument Center of National Cheng Kung University.
Funding Information:
This work was financially sponsored by the Ministry of Science and Technology of Taiwan under the projects MOST 110-2221-E-006-032-MY2 and MOST 111-2221-E-006-164-MY2 . The authors would like to thank Ms. Hui–Jung Shih with the Instrument Center of National Cheng Kung University for supporting the use of high-resolution SEM (Hitachi SU8000 ). The authors also gratefully acknowledge the use of D8 Discover equipment belonging to the Instrument Center of National Cheng Kung University .
Publisher Copyright:
© 2022 Elsevier B.V.
PY - 2023/1
Y1 - 2023/1
N2 - Double-perovskite samarium- and trivalent dysprosium-doped La2ZnTiO6 (LZTO: Sm3+ and LZTO: Dy3+) phosphors were prepared by a solid-state reaction method, and their luminescence properties were systemically investigated by Rietveld refinement, scanning electron microscopy (SEM) analysis, emission/excitation spectra, and thermal quenching measurement. Under the excitation of a 325 nm laser, the individually Sm3+- and Dy3+-doped phosphors reveal a characteristic and strong red emission peak at 602 nm and yellow emission at 575 nm, respectively. The samples also achieve excellent quantum efficiency (QE), which is as high as 52% for LZTO: Sm3+ and 93% for LZTO: Dy3+. In addition, the thermal stability remains strong and retains >63% and 61.3% of the original luminescence intensity at 475 K for the single Sm3+- and Dy3+-doped phosphors, respectively.
AB - Double-perovskite samarium- and trivalent dysprosium-doped La2ZnTiO6 (LZTO: Sm3+ and LZTO: Dy3+) phosphors were prepared by a solid-state reaction method, and their luminescence properties were systemically investigated by Rietveld refinement, scanning electron microscopy (SEM) analysis, emission/excitation spectra, and thermal quenching measurement. Under the excitation of a 325 nm laser, the individually Sm3+- and Dy3+-doped phosphors reveal a characteristic and strong red emission peak at 602 nm and yellow emission at 575 nm, respectively. The samples also achieve excellent quantum efficiency (QE), which is as high as 52% for LZTO: Sm3+ and 93% for LZTO: Dy3+. In addition, the thermal stability remains strong and retains >63% and 61.3% of the original luminescence intensity at 475 K for the single Sm3+- and Dy3+-doped phosphors, respectively.
UR - https://www.scopus.com/pages/publications/85144454152
UR - https://www.scopus.com/pages/publications/85144454152#tab=citedBy
U2 - 10.1016/j.optmat.2022.113361
DO - 10.1016/j.optmat.2022.113361
M3 - Article
AN - SCOPUS:85144454152
SN - 0925-3467
VL - 135
JO - Optical Materials
JF - Optical Materials
M1 - 113361
ER -