Efficient fluorescence emission and photon conversion of LaOF: Eu3+ nanocrystals

被引：45

作者：

Gao, Dangli ^{[1
]}

Zheng, Hairong ^{[1
]}

Zhang, Xiangyu ^{[2
]}

Fu, Zhenxing ^{[1
]}

Zhang, Zhenglong ^{[1
]}

Tian, Yu ^{[1
]}

Cui, Min ^{[1
]}

机构：

[1] Shaanxi Normal Univ, Coll Phys & Informat Technol, Xian 710062, Shaanxi, Peoples R China

[2] Qinghai Nationalities Univ, Coll Phys & Elect Informat Engn, Xining 810007, Qinghai, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2011年 / 98卷 / 01期

关键词：

DOPED LAF3 NANOPARTICLES;

D O I：

10.1063/1.3535983

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Efficient spectral conversion of 325-550 nm light to 570-710 nm light has been demonstrated in LaOF: Eu3+ nanocrystals. When levels above the D-5(0) level of Eu3+ are optically excited, strong emission arising from the D-5(0) level is obtained in the range of 570-710 nm, a highly efficient working range for organic solar cells. The influences of ambient temperature, particle size, dopant concentration, and codoped ions on the fluorescence intensity of Eu3+ are discussed in detail. The photon conversion efficiency can reach 3.91% in LaOF: Eu3+ codoped with Tm3+, if light reflection and scattering effects are ignored (C) 2011 American Institute of Physics. [doi: 10.1063/1.3535983]

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