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Investigation of up-conversion luminescence of Er3+ and Er3+/Yb3+ ions doped in PLZT for active electro-optical applications |
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| Authors: | Baozeng LI Anting WANG Hai GUO Xuesheng CHEN Hua JIANG Zhiqiang ZHENG Hai MING |
| Affiliation: | 1. Department of Physics, University of Science and Technology of China, Hefei 230026, China 2. Department of Physics and Astronomy, Wheaton College, Norton, MA 02766, USA 3. Boston Applied Technologies, Inc., 150H New Boston Street, Woburn, MA 01801, USA 4. Department of Physics, Fujian Normal University, Fuzhou 350007, China |
| Abstract: | The up-conversion luminescence of Er3+ and Er3+/Yb3+ ions doped in lanthanum-modified lead zirconate titanate (PLZT) under 980 nm excitation at room temperature has been investigated. The green upconversion luminescence at 540 and 566 nm was observed in Er3+:PLZT; the greater the concentration of Er3+ ions, the stronger the intensity. In Er3+-Yb3+:PLZT, other than the green up-conversion luminescence at 540 and 566 nm, a relatively weak red up-conversion luminescence at 668 nm was also observed. Both green and red up-conversion luminescence intensities presented an approximately quadratic dependence on excitation power, which indicated that two excitation photons are involved in the up-conversion process of Er3+:PLZT and Er3+-Yb3+:PLZT. The characteristics of PLZT ceramic material were also studied by Raman spectroscopy. This work shows a promising future for developing multifunctional up-conversion electrooptical devices using Er3+ and Er3+/Yb3+ ions doped PLZT. |
| Keywords: | up-conversion luminescence Er3+ and Er3+/Yb3+ doped lanthanum-modified lead zirconate titanate (PLZT) |
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