Near-UV-to-red light conversion through energy transfer in Ca2Sr(PO4)2:Ce3+,Mn2+ for plant growth,Journal of Materials Chemistry C

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Near-UV-to-red light conversion through energy transfer in Ca2Sr(PO4)2:Ce3+,Mn2+ for plant growth
Journal of Materials Chemistry C ( IF 5.7 ) Pub Date : 2017-10-31 00:00:00 , DOI: 10.1039/c7tc04262k
Jingchen Zhang _{1,

2,

3,

4,

5} , Xinguo Zhang _{4,

6,

7,

8,

9} , Jilin Zhang _{1,

2,

3,

4,

5} , Wentao Ma _{1,

2,

3,

4,

5} , Xiaoyu Ji _{1,

2,

3,

4,

5} , Shuzhen Liao _{4,

10,

11,

12} , Zhongxian Qiu _{1,

2,

3,

4,

5} , Wenli Zhou _{1,

2,

3,

4,

5} , Liping Yu _{1,

2,

3,

4,

5} , Shixun Lian _{1,

2,

3,

4,

5}

Affiliation

A series of Ca₂Sr(PO₄)₂:Ce³⁺,Mn²⁺,Na⁺ phosphors were synthesized by a high-temperature solid-state reaction. Under ∼320 nm excitation, the Ce³⁺ and Mn²⁺ co-doped phosphors exhibit two emission bands peaking at 370 and 645 nm, which originate from 5d–4f and 3d–3d transitions of Ce³⁺ and Mn²⁺, respectively. Luminescence properties, diffuse reflectance spectra, and decay curves indicate that energy transfer (ET) occurs from Ce³⁺ to Mn²⁺, and the ET efficiency reaches its maximum (91%) at an Mn²⁺ content of 0.35. The diffuse reflectance spectrum shows that the co-doped phosphors have strong absorption around 320 nm, which is good for the anti-aging ability of an agricultural film. The absolute quantum efficiency of the Ca_1.6Sr(PO₄)₂:0.15Ce³⁺,0.10Mn²⁺,0.15Na⁺ phosphor is ∼94%. And the co-doped phosphors exhibit good stability in water. Therefore, Ca₂Sr(PO₄)₂:Ce³⁺,Mn²⁺,Na⁺ phosphors have potential application as a light conversion material in agricultural films.

中文翻译：

通过Ca ₂ Sr（PO ₄）₂：Ce ³⁺，Mn ^2+中的能量转移将近紫外光转换为红光，以促进植物生长

通过高温固相反应合成了一系列Ca ₂ Sr（PO ₄）₂：Ce ³⁺，Mn 2 ⁺，Na ⁺荧光粉。下~320 nm激发，Ce的³⁺和Mn ²⁺共掺杂的磷光体显示出2个发射带在370和645纳米，这选自Ce的5D-4F和3D-3D转换起源峰值³⁺和Mn ²⁺，分别。发光特性，漫反射光谱，和衰减曲线表明，能量转移（ET）选自Ce发生³⁺与Mn ²⁺，和ET效率的Mn达到它的最大值（91％）²⁺含量为0.35。漫反射光谱表明，共掺杂的磷光体在320nm附近具有强吸收，这对于农用膜的抗老化能力是有利的。Ca _1.6 Sr（PO ₄）₂：0.15Ce ³⁺，0.10Mn 2 ⁺，0.15Na ⁺荧光粉的绝对量子效率为〜94％。并且共掺杂的磷光体在水中表现出良好的稳定性。因此，Ca ₂ Sr（PO ₄）₂：Ce ³⁺，Mn 2 ⁺，Na ⁺荧光粉具有潜在的应用作为农用薄膜中的光转换材料。

更新日期：2017-11-16

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