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sensitized luminescence of Rare Earths

Chemical Research in Chinese Universities 1996年第1期12卷 10-15页

作者： SI Zhi-kun HU Jing-tian JIANG Wei and ZHU Gui-yun(Department of Chemistry, Shandong University, Jinan, 250100)LI Shu-hua(Department of Basic Courses, Shandong Institute of Light Industry, jinan, 250100) SHANDONG UNIV DEPT CHEMJINAN 250100PEOPLES R CHINA SHANDONG INST LIGHT IND DEPT BASIC COURSESJINAN 250100PEOPLES R CHINA

The enhancement effect on the fluorescence intensities of an Eu3+ (or/and Sm3+ )-thenoyltrifluoroacetone (TTA )-dibenzo-18-crown-6 (18-C-6 ) system and Eu 3+ (or /and Sm3+ ) -benzoyltrifluoroacetone (BTA )-cetyltrimethylammonium bromide (CTMAB) system by dysprosium has been studied. In the presence of enhancing ions, the fluorescence intensities of the above systems were enhanced by a factor of about 40-150, respectively. The above systems were used for the determination of europlum or/and samarium in rare earths oxides and gave satisfactory results.

关键词： sensitized luminescence Rare earths Fluorescence

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Enhancement of sensitized photoluminescence of erbium chloride silicate through regulating annealing

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Journal of Rare Earths 2023年第10期41卷 1512-1518,I0002页

作者： Huabao Shang Hao Shen Deren Yang Dongsheng Li State Key Laboratory of Silicon Materials and School of Materials Science and Engineering Zhejiang UniversityHangzhou310027China Institute of Fluid Physics China Academy of Engineering PhysicsMianyang621900China

Erbium chloride silicate(ECS)nanocrystals and Si nanocrystals(Si NCs)co-embedded in silica films were *** the sensitized luminescence of ECS was realized through interparticle energy transfer(IPET)in solid *** focus on the effect of annealing temperature on the film microstructure and sensitized *** samples annealed at 1100℃have a moderate level of energy transfer efficiency and total Er3+concentration capable of radiative *** the same time,they also have high luminescence intensity of Si ***,the samples annealed at 1100℃have good sensitizing luminescence performance of *** strong luminesce nce intensity of sensitizers Si NCs and adjacent crystalline ECS nanocrystals are the keys to achieve excellent IPET in the solid *** results provide a basis for optimizing sensitized luminescence of erbium compounds by regulating annealing.

关键词： Erbium chloride silicate Si nanocrystals Interparticle energy transfer sensitized luminescence Annealing Rare earths

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