The luminescent nanocrystalline Yb3+ and Er3+ codoped KLa(WO4)(2) has been prepared by Pechini method. X-ray diffraction and transmission electron microscope were used to study the structure of the obtained samples. The average grain size of these samples depended on the annealing temperature, increasing with the increase of the temperature. The cell parameters and the crystallite size of KYbxEr0.02La0.98-x(WO4)(2) nanocrystalline decreased with the increase of x value. Luminescence studies showed that the intensity of upconversion emission of the Yb3+ and Er3+ codoped samples was much stronger than that of the Er3+ single doped samples (pumped by 980 nm LD). The upconversion emission mechanisms suggested that all the three bands of upconversion emissions were two-photon process. (C) 2010 Elsevier Inc. All rights reserved.
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Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350003, Fujian, Peoples R China
Chinese Acad Sci, Grad Sch, Beijing 100037, Peoples R ChinaChinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350003, Fujian, Peoples R China
Zhao, Yunxia
Huang, Yisheng
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Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350003, Fujian, Peoples R ChinaChinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350003, Fujian, Peoples R China
Huang, Yisheng
Zhang, Lizhen
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Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350003, Fujian, Peoples R ChinaChinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350003, Fujian, Peoples R China
Zhang, Lizhen
Lin, Zhoubin
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Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350003, Fujian, Peoples R ChinaChinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350003, Fujian, Peoples R China
Lin, Zhoubin
Wang, Guofu
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Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350003, Fujian, Peoples R ChinaChinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350003, Fujian, Peoples R China
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NE Normal Univ, Ctr Adv Optoelect Funct Mat Res, Minist Educ, Changchun 130024, Peoples R China
NE Normal Univ, Minist Educ, Key Lab UV Emitting Mat & Technol, Changchun 130024, Peoples R ChinaNE Normal Univ, Ctr Adv Optoelect Funct Mat Res, Minist Educ, Changchun 130024, Peoples R China
Cong, Tie
Ding, Yadan
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NE Normal Univ, Ctr Adv Optoelect Funct Mat Res, Minist Educ, Changchun 130024, Peoples R China
NE Normal Univ, Minist Educ, Key Lab UV Emitting Mat & Technol, Changchun 130024, Peoples R ChinaNE Normal Univ, Ctr Adv Optoelect Funct Mat Res, Minist Educ, Changchun 130024, Peoples R China
Ding, Yadan
Liu, Junping
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NE Normal Univ, Ctr Adv Optoelect Funct Mat Res, Minist Educ, Changchun 130024, Peoples R China
NE Normal Univ, Minist Educ, Key Lab UV Emitting Mat & Technol, Changchun 130024, Peoples R ChinaNE Normal Univ, Ctr Adv Optoelect Funct Mat Res, Minist Educ, Changchun 130024, Peoples R China
Liu, Junping
Zhao, Huiying
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Jilin Univ, Dept Basic Med, Gerontol Dept, Bethune Hosp 1, Changchun 130021, Peoples R ChinaNE Normal Univ, Ctr Adv Optoelect Funct Mat Res, Minist Educ, Changchun 130024, Peoples R China
Zhao, Huiying
Hong, Xia
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NE Normal Univ, Ctr Adv Optoelect Funct Mat Res, Minist Educ, Changchun 130024, Peoples R China
NE Normal Univ, Minist Educ, Key Lab UV Emitting Mat & Technol, Changchun 130024, Peoples R ChinaNE Normal Univ, Ctr Adv Optoelect Funct Mat Res, Minist Educ, Changchun 130024, Peoples R China