Synthesis and luminescence characteristics of terbium(Ⅲ) activated NaSrBO_3

作     者：P.A. Nagpure S.K. Omanwar 

作者机构：Department of Physics SGB Amravati University Amravati-444602 (M.S.) India 

出 版 物：《Journal of Rare Earths》 (稀土学报（英文版）)

年 卷 期：2012年第30卷第9期

页      面：856-859页

核心收录：

学科分类：0709[理学-地质学] 0819[工学-矿业工程] 081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0708[理学-地球物理学] 0703[理学-化学] 070301[理学-无机化学] 

基　　金：University Grants Commission  UGC 

主　　题：thermoluminescence photoluminescence terbium NaSrBO3 combustion synthesis rare earths 

摘      要：The thermoluminescence （TL） and photohmainescence （PL） properties of the phosphor NaSrBO3：Tb3＋ were reported and discussed. The combustion technique was used for the synthesis of polycrystalline samples of NaSrBO3：Th3＋. The TL glow curve of the compound had a simple structure with a single peak at 434 K. TL sensitivity of the phosphor was found to be more than that of （LiF：Mg,Cu,P）. The TL glow curve was studied as a function of concentration of dopant and dose of gamma ray irradiation. The kinetic parameters of the thermolumines- cence of NaSrBO3： Tb3＋were calculated employing the peak shape method. The photoluminescence （PL） properties of Tb3＋ doped in NaS- rBO3 were studied over the 200-400 nm excitation range. The excitation spectra of NaSrBO3：Tb3＋ consisted of single narrow band peaking at about 236 nm. The emission spectra monitored at 236 nm excitation consisted of a series of sharp lines peaking at 489, 544, 586 and 622 nm corresponding to the 5D4→7Fj （j=3,4,5,6） transitions within the 4f8 configurations of Tb3＋.