Cooperative downconversion and near-infrared luminescence of Tb3+-Yb3+ codoped lanthanum borogermanate glasses

被引：80

作者：

Liu, X. ^{[2
,3
]}

Ye, S. ^{[1
]}

Qiao, Y. ^{[2
,3
]}

Dong, G. ^{[2
,3
]}

Zhu, B. ^{[1
]}

Chen, D. ^{[3
]}

Lakshminarayana, G. ^{[1
]}

Qiu, J. ^{[1
]}

机构：

[1] Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China

[2] Chinese Acad Sci, State Key Lab High Field Laser Phys, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China

[3] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2009年 / 96卷 / 01期

基金：

中国国家自然科学基金;

关键词：

STILLWELLITE LABGEO5; CRYSTALLIZATION;

D O I：

10.1007/s00340-009-3478-z

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In the present paper, we investigate the near-infrared (NIR) luminescence of Tb3+-Yb3+ codoped lanthanum borogermanate (LBG) glasses under visible and ultraviolet light excitation. The results indicate that NIR quantum cutting occurs through cooperative energy transfer from Tb3+ to Yb3+ ions when only 4f (8) levels of Tb3+ ions are excited in the wavelength region of 300-490 nm. The highest quantum efficiency under the excitation (5) D (4) level of Tb3+ at 484 nm is 146%. Ultraviolet excitation that populates the charge transfer band (CTB) of Yb3+ near 270 nm does not result in quantum cutting as the fast nonradiative decay from CTB to (2) F (5/2) level dominates. These materials are expected to be used as a converting layer for silicon solar cells to enhance their efficiency by splitting each high-energy photon into two NIR photons.

引用

页码：51 / 55

页数：5

共 19 条

[1]

Blasse G., 1994, LUMINESCENT MAT, P1, DOI [10.1007/978-3-642-79017-1_1, DOI 10.1007/978-3-642-79017-1_1, 10.1007/978-3-642-79017-11, DOI 10.1007/978-3-642-79017-11]

[2] Near-infrared quantum cutting in transparent nanostructured glass ceramics [J].

Chen, Daqin ;

Wang, Yuansheng ;

Yu, Yunlong ;

Huang, Ping ;

Weng, Fangyi .

OPTICS LETTERS, 2008, 33 (16) :1884-1886

[3]

Duffy JA, 2001, PHYS CHEM GLASSES, V42, P151

[4] Spectroscopic properties, concentration quenching, and prediction of infrared laser emission of Yb3+-doped Ky3F10 cubic crystal [J].

Ito, M. ;

Boulon, G. ;

Bensalah, A. ;

Guyot, Y. ;

Goutaudier, C. ;

Sato, H. .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 2007, 24 (12) :3023-3033

[5]

Jorgensen C.K., 1970, PROG INORG CHEM, V12, P101

[6] Co-operative downconversion luminescence in Tm3+/Yb3+ : SiO2-Al2O3-LiF-GdF3 glasses [J].

Lakshminarayana, G. ;

Yang, Hucheng ;

Ye, Song ;

Liu, Yin ;

Qiu, Jianrong .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2008, 41 (17)

[7] CHARGE-TRANSFER TYPE LUMINESCENCE OF YB3+ IONS IN YPO4,LAPO4,LUPO4 AND Y2O2S,LA2O2S,LU2O2S [J].

NAKAZAWA, E .

JOURNAL OF LUMINESCENCE, 1979, 18-9 (JAN) :272-276

[8]

PIETERSON LV, 2001, J LUMIN, V91, P177

[9] Luminescent layers for enhanced silicon solar cell performance: Down-conversion [J].

Richards, BS .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2006, 90 (09) :1189-1207

[10]

Sigaev V. N., 1994, Glass Physics and Chemistry, V20, P398

← 1 2 →