| Effect of Yb^3＋ concentration on Er^3＋ luminescence properties of sol-gelderived silica-alumina xerogels |
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| 作者姓名： | K.Tran Ngoc H. Pham Thanh C. Nguyen Duc C. Armellini A. Chiaserat M. Ferrari Y. Jestin M. Montagna E. Moser S. Pelli G.C. Righini |
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| 作者单位： | [1]CNR-IFN Istituto di Fotonica e Nanotecnologie , CSMFO group, via Somrnarie 74,1-38050 Povo, Trento, Italy [2]ITIMS-Hanoi University of Tecl~ology, No 1, Dai Co Viet, Hanoi, Vietnam [3]Dipartimento di Fisica, Universita di Trento, CSMFO group, via Sommarive 74,1-38050 Povo, Trento, Italy [4]CNR-IFAC Nello Carrara Institute of Applied Physics, Lab. of Optoelectronic Technologies, Via Madonna del Piano70,50079 Sesto Fiorentino, Firenze, Italy |
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| 基金项目： | This research is performed in the context of the Italy-Vietnamre-search project 6 BS 2 MAE2006-2008 .MIUR-FIRB RBNE012N3X,PAT FAPVU2004-2006 ,MIUR-PRIN2004-2006 . |
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| 摘 要： | Er~(3 )-activated silicate glasses are recognized of tech-nological interest in several areas and,in particular ,it iswell known for their successful application in opticalamplification at the C band (1530 -1565 nm) of tele-communications1].Inside this l…
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| 关 键 词： | 铒离子 二氧化硅 干凝胶 光致发光 |
| 文章编号： | 1673-1905（2006）05-0354-04 |
| 收稿时间： | 2006-03-01 |
| 修稿时间： | 2006-08-02 |
Effect of Yb3+ concentration on Er3+ luminescence properties of sol-gelderived silica-alumina xerogels |
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| K.Tran Ngoc H. Pham Thanh C. Nguyen Duc C. Armellini A. Chiaserat M. Ferrari Y. Jestin M. Montagna E. Moser S. Pelli G.C. Righini.Effect of Yb3+ concentration on Er3+ luminescence properties of sol-gelderived silica-alumina xerogels[J].Opto-electronics Letters,2006,2(5):354-357. |
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| Authors: | K Tran Ngo H Pham Thanh C Nguyen Du C Armellini A Chiaser M Ferrari Y Jestin M Montagn E Moser S Pelli and G C Righini |
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| Affiliation: | (1) CNR-IFN Istituto di Fotonica e Nanotecnologie, CSMFO group, via Sommarie 14, I-38050 Povo, Trento, Italy;(2) ITIMS-Hanoi University of Technology, No. 1, Dai Co Viet, Hanoi, Vietnam;(3) Dipartimento di Fisica, Università di Trento, CSMFO group, via Sommarive 14, I-38050 Povo, Trento, Italy;(4) CNR-IFAC Nello Carrara Institute of Applied Physics, Lab. of Optoelectronic Technologies, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Firenze, Italy |
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| Abstract: | Er3+ / Yb3+ co-doped silica-alumina monolithic xerogels were prepared with the same concentration on 2 000 Er/Si ppm and 6 000 Al/Si
ppm. The Yb/Si content was varied from 0 to 4 000 ppm Densification of the samples was achieved by thermal treatment in air
at 950 °C for 120 hours with a heating rate 0.1 °C/min. Photoluminescence spectroscopy was used to obtain information about
the effective excitation efficiency of Er3+ ions by co-doping with Yb3+ ions. The infrared-to-visible up-conversion luminescence has been investigated upon continuous wave excitation at 980 nm.
The samples exhibit red, green and blue up-conversion emission. It is found that the intensity of up-conversion luminescence
increases with increasing Yb3+ doping concentration. An opposite behavior is observed for the4l13/2 luminescence of the Er3+ ions.
This research is performed in the context of the Italy-Vietnam research project 6 BS 2 MAE 2006–2008. MIUR-FIRB RBNE012 N3X,
PAT FAPVU2004–2006, MIUR-PRIN 2004–2006. |
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| Keywords: | CLC number" target="_blank">CLC number O614 344 |
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