Luminescence and energy transfer of Eu3+ or/and Dy3+ co-doped in Sr3AlO4F phosphors with NUV excitation for WLEDs

被引：106

作者：

Bandi, Vengala Rao ^{[1
]}

Grandhe, Bhaskar Kumar ^{[1
]}

Woo, Hyun-Joo ^{[1
]}

Jang, Kiwan ^{[1
]}

Shin, Dong-Soo ^{[2
]}

Yi, Soung-Soo ^{[3
]}

Jeong, Jung-Hyun ^{[4
]}

机构：

[1] Changwon Natl Univ, Dept Phys, Chang Won 641773, South Korea

[2] Changwon Natl Univ, Dept Chem, Chang Won 641773, South Korea

[3] Silla Univ, Dept Photon, Pusan, South Korea

[4] Pukyong Natl Univ, Dept Phys, Pusan, South Korea

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2012年 / 538卷

基金：

新加坡国家研究基金会;

关键词：

Sr3AlO4F phosphor; Optical properties; Energy transfer; PHOTOLUMINESCENCE PROPERTIES; WHITE; EMISSION; OXYFLUORIDE; EFFICIENT; FAMILY; AL;

D O I：

10.1016/j.jallcom.2012.05.057

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Eu3+/Dy3+ single doped and codoped Sr3AlO4F phosphors were prepared in a reducing atmosphere by the conventional solid-state reaction method. The XRD was used to confirm the crystal structure of the phosphors and their photoluminescence (PL) properties were studied by the excitation and emission spectra. These phosphors have intense absorption in NUV region, which is suitable for the emission wavelength of NUV LED. The dependence of luminescence intensity on doping concentration is investigated with respect to the energy transfer process in between Eu3+ and Dy3+ ions. The CIE color coordinates of the prepared phosphors were calculated. The obtained results have been rationalized in order to provide useful information for the development of a suitable material for the NUV based white-light emitting phosphors technology. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：85 / 90

页数：6

共 29 条

[1] Citric based sol-gel synthesis and luminescence characteristics of CaLa2ZnO5:Eu3+ phosphors for blue LED excited white LEDs [J].

Bandi, Vengala Rao ;

Grandhe, Bhaskar Kumar ;

Jang, Kiwan ;

Lee, Ho-Sueb ;

Shin, Dong-Soo ;

Yi, Soung-Soo ;

Jeong, Jung-Hyun .

JOURNAL OF ALLOYS AND COMPOUNDS, 2012, 512 (01) :264-269

[2] SINGLE-PHASED AND EMISSION-TUNABLE CaLa2-xEuxZnO5 PHOSPHORS WITH BLUE LIGHT EXCITATION FOR WLEDS [J].

Bandi, Vengala Rao ;

Grandhe, Bhaskar Kumar ;

Jang, Kiwan ;

Lee, Ho-Sueb ;

Yi, Soung-Soo ;

Jeong, Jung-Hyun .

FUNCTIONAL MATERIALS LETTERS, 2011, 4 (01) :79-82

[3] Enhancement of white light emission from novel Ca3Y2Si3O12:Dy3+ phosphors with Ce3+ ion codoping [J].

Bandi, Vengala Rao ;

Nien, Yung-Tang ;

Chen, In-Gann .

JOURNAL OF APPLIED PHYSICS, 2010, 108 (02)

[4]

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]

[5] Photoluminescence and cathodoluminescence properties of Tb3+ activated Sr3AlO4F emitting-color tunable phosphor [J].

Chen, W. ;

Liang, H. ;

Ding, X. ;

Liu, Y. ;

Su, Q. .

APPLIED PHYSICS B-LASERS AND OPTICS, 2011, 102 (03) :699-704

[6] Reduction of Eu3+ to Eu2+ in NaCaPO4:Eu phosphors prepared in a non-reducing atmosphere [J].

Grandhe, Bhaskar Kumar ;

Bandi, Vengala Rao ;

Jang, Kiwan ;

Kim, Sang-Su ;

Shin, Dong-Soo ;

Lee, Yong-Ill ;

Lim, Jae-Min ;

Song, Taekwon .

JOURNAL OF ALLOYS AND COMPOUNDS, 2011, 509 (30) :7937-7942

[7] Warm-White-Emitting from Eu2+/Mn2+-Codoped Sr3Lu(PO4)3 Phosphor with Tunable Color Tone and Correlated Color Temperature [J].

Guo, Ning ;

Zheng, Yuhua ;

Jia, Yongchao ;

Qiao, Hui ;

You, Hongpeng .

JOURNAL OF PHYSICAL CHEMISTRY C, 2012, 116 (01) :1329-1334

[8] Recent Developments in the Field of Inorganic Phosphors [J].

Hoeppe, Henning A. .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2009, 48 (20) :3572-3582

[9] Efficient and Color-Tunable Oxyfluoride Solid Solution Phosphors for Solid-State White Lighting [J].

Im, Won Bin ;

George, Nathan ;

Kurzman, Joshua ;

Brinkley, Stuart ;

Mikhailovsky, Alexander ;

Hu, Jerry ;

Chmelka, Bradley F. ;

DenBaars, Steven P. ;

Seshadri, Ram .

ADVANCED MATERIALS, 2011, 23 (20) :2300-+

[10] Thermally Stable, Dye-Bridged Nanohybrid-Based White Light-Emitting Diodes [J].

Kwak, Seung-Yeon ;

Yang, SeungCheol ;

Kim, Na Ree ;

Kim, Jae Hong ;

Bae, Byeong-Soo .

ADVANCED MATERIALS, 2011, 23 (48) :5767-+

← 1 2 3 →