发光学报, 2018, 39 (4): 488, 网络出版: 2018-05-07
Er,Yb∶(LaLu)2O3透明陶瓷制备及上转换发光性能
Preparation of Er,Yb∶(LaLu)2O3 Ceramic and Its Upconversion Luminescent Properties
铒镱掺杂氧化镧镥 柠檬酸燃烧法 冷等静压-真空烧结法 光谱性质 erbium and ytterbium co-doped lanthanum lutetium o citric combustion method cold isostatic-vacuum sintering spectroscopic properties
摘要
采用柠檬酸燃烧法制备Er,Yb∶(LaLu)2O3陶瓷粉体,用X射线衍射对其进行了物相鉴定,研究表明1 000 ℃时已经得到纯相的(LaLu)2O3。采用冷等静压-真空烧结法制备了Er,Yb∶(LaLu)2O3和Er∶(LaLu)2O3陶瓷,对陶瓷的结构和光谱性能进行了详细的研究,研究发现掺杂5%Yb3+和10%La3+样品的上转换发光强度与未掺Yb3+、La3+样品相比明显增大,根据上转换光谱显示较强发射峰位于564 nm和661 nm处,对应Er3+的4S3/2(2H11/2)→4I15/2能级跃迁和4F9/2→4I15/2能级跃迁,并讨论了Er3+-Yb3+的能量传递过程及其上转换发光机制。
Abstract
Er,Yb∶(LaLu)2O3 ceramic powders were prepared via citric combustion method. XRD patterns show that the production prepared at 1 000 ℃ is pure phase of (LaLu)2O3. Er,Yb∶(LaLu)2O3 and Er∶(LaLu)2O3 ceramic was synthesized by cold isostatic-vacuum sintering method. The structural and spectroscopic properties of the ceramics were investigated in detail. The upconversion emission increases obviously when 5%Yb3+ and 10%La3+ are doped in the ceramic compared with the samples without Yb3+ and La3+ doping. The upconversion fluorescence spectra show that the intense green and red emissions located at around 564 nm and 661 nm are attributed to the radiant transitions of 4S3/2(2H11/2)→4I15/2 and 4F9/2→4I15/2 of Er3+, respectively. The energy transfer process and upconversion luminescence mechanism of Er3+-Yb3+ in co-doped system were studied.
代雨航, 李剑, 张莹, 朱忠丽. Er,Yb∶(LaLu)2O3透明陶瓷制备及上转换发光性能[J]. 发光学报, 2018, 39(4): 488. DAI Yu-hang, LI Jian, ZHANG Ying, ZHU Zhong-li. Preparation of Er,Yb∶(LaLu)2O3 Ceramic and Its Upconversion Luminescent Properties[J]. Chinese Journal of Luminescence, 2018, 39(4): 488.