LIAO Jin-sheng, KONG Li-yun, WANG Ming-hua etc. Hydrothermal Systheis and Upconversion Emission Properties of GdInO<sub>3</sub>: Yb<sup>3+</sup>/Ho<sup>3+</sup> Phosphors[J]. Chinese Journal of Luminescence, 2019,40(12): 1486-1493
LIAO Jin-sheng, KONG Li-yun, WANG Ming-hua etc. Hydrothermal Systheis and Upconversion Emission Properties of GdInO<sub>3</sub>: Yb<sup>3+</sup>/Ho<sup>3+</sup> Phosphors[J]. Chinese Journal of Luminescence, 2019,40(12): 1486-1493 DOI: 10.3788/fgxb20194012.1486.
Hydrothermal Systheis and Upconversion Emission Properties of GdInO3: Yb3+/Ho3+ Phosphors
phosphor has been synthesized by hydrothermal process and further heat treatment. The crystal structure and phase purity were checked by means of powder X-ray diffraction (PXRD)
and the refinement results showed that pure phase GdInO
3
:Yb
3+
/Ho
3+
phosphors were obtained. The morphology of the synthesized materials was characterized by SEM and TEM. The upconversion (UC) luminescence properties of the phosphor were investigated. Green emission at 539 nm (
5
S
2
/
5
F
4
5
I
8
) and red emission at 665 nm (
5
F
5
5
I
8
) of Ho
3+
were observed upon 980 nm laser excitation. Moreover
it has been found that tuneable emission characteristics from green to yellow were obtained
via
the Ho
3+
concentration modulation. The tunable emission is due to the cross-relaxation process (
5
F
4
/
5
S
2
+
5
I
7
5
F
5
+
5
I
6
). The GdInO
3
:Yb
3+
/Ho
3+
can be a good candidate for upconversion material in lighting and display fields.
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Keywords
references
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