Visible to near infrared conversion in Ce3+-Yb3+ Co-doped YAG ceramics

被引：182

作者：

Ueda, Jumpei ^{[1
]}

Tanabe, Setsuhisa ^{[1
]}

机构：

[1] Kyoto Univ, Grad Sch Human & Environm Studies, Sakyo Ku, Kyoto 6068501, Japan

来源：

JOURNAL OF APPLIED PHYSICS | 2009年 / 106卷 / 04期

关键词：

CHARGE-TRANSFER LUMINESCENCE; YTTERBIUM OXYORTHOSILICATE; DOWNCONVERSION; DEPENDENCE; EFFICIENCY; PHOSPHOR; GARNETS;

D O I：

10.1063/1.3194310

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In Ce3+-Yb3+ co-doped Y3Al5O12 (YAG) ceramics, possibility of quantum cutting mechanism converting one visible photon into two NIR photons with optimum quantum efficiency approaching 200% have been investigated. In this material, Yb3+ emissions due to the F-2(5/2)-F-2(7/2) in the range of 1 mu m were observed upon the excitation of 5d level of Ce3+. In addition, excitation spectra of Yb3+ emission corresponded to that of Ce3+ emission completely. Lifetime of the 5d level of Ce3+ decreased with increasing Yb3+ content. These result's indicate the energy transfer (ET) from the 5d levels of Ce3+ to the F-5(5/2) level of Yb3+. In (Y0.945Ce0.005Yb0.05) 3Al5O12 sample, the directly measured quantum yield (QY) of Yb3+ emission upon the excitation of 5d level of Ce3+ was about 12% and lower than QY (96%) that estimated from the ET efficiency which was calculated with the measured lifetime of Ce3+. (C) 2009 American Institute of Physics. [DOI: 10.1063/1.3194310]

引用

页数：5

共 27 条

[1] Temperature-dependent luminescence of cerium-doped ytterbium oxyorthosilicate [J].

Cooke, DW ;

Muenchausen, RE ;

Bennett, BL ;

McClellan, KJ ;

Portis, AM .

JOURNAL OF LUMINESCENCE, 1998, 79 (03) :185-190

[2] POSSIBILITY OF LUMINESCENT QUANTUM YIELDS GREATER THAN UNITY [J].

DEXTER, DL .

PHYSICAL REVIEW, 1957, 108 (03) :630-633

[3] Luminescence Characteristics of YAG Glass-Ceramic Phosphor for White LED [J].

Fujita, Shunsuke ;

Sakamoto, Akihiko ;

Tanabe, Setsuhisa .

IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, 2008, 14 (05) :1387-1391

[4] X-ray excited charge transfer luminescence of ytterbium-containing aluminium garnets [J].

Guerassimova, N ;

Garnier, N ;

Dujardin, C ;

Petrosyan, AG ;

Pedrini, C .

CHEMICAL PHYSICS LETTERS, 2001, 339 (3-4) :197-202

[5]

*JCPDS PDF, 231476 JCPDS PDF

[6]

*JCPDS PDF, 330040 JCPDS PDF

[7] Temperature dependence of the charge transfer and f-f luminescence of Yb3+ in garnets and YAP [J].

Kamenskikh, I ;

Dujardin, C ;

Garnier, N ;

Guerassimova, N ;

Ledoux, G ;

Mikhailin, V ;

Pedrini, C ;

Petrosyan, A ;

Vasil'ev, A .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2005, 17 (36) :5587-5594

[8] Cooperative downconversion in Yb3+-RE3+ (RE=Tm or Pr) codoped lanthanum borogermanate glasses [J].

Liu, Xiaofeng ;

Qiao, Yanbo ;

Dong, Guoping ;

Ye, Song ;

Zhu, Bin ;

Lakshminarayana, Gandham ;

Chen, Danping ;

Qiu, Jianrong .

OPTICS LETTERS, 2008, 33 (23) :2858-2860

[9] Phosphor-conversion white light emitting diode using InGaN near-ultraviolet chip [J].

Narukawa, Y ;

Niki, I ;

Izuno, K ;

Yamada, M ;

Murazaki, Y ;

Mukai, T .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 2002, 41 (4A) :L371-L373

[10] Charge transfer luminescence in Yb3+-containing compounds [J].

Nikl, M ;

Yoshikawa, A ;

Fukuda, T .

OPTICAL MATERIALS, 2004, 26 (04) :545-549

← 1 2 3 →