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1.3 PHYSICAL SCIENCES, Optics
The distribution of Tm3+ and Ni2+ ions is unambiguously exhibited in 80GeS2-20Ga2S3 chalcogenide glass ceramics (GCs) containing Ga2S3 nanocrystals (NCs) by using advanced analytical transmission electron microscopy. Distinctively different distribution patterns of Tm3+ and Ni2+ ions are observed in the GCs obtained by controlled crystallization. The distribution of the dopants imposes strong influence on their optical properties which are revealed by absorption and photoluminescence (PL) spectra. Detailed discussions are given of the mechanisms of the crystallization-induced PL enhancement and quenching of the Tm3+ mid-infrared and Ni2+ near-infrared emissions, respectively.
Xiaosong Lu, Zhiqiang Lai, Jing Ren, Lukas Strizik, Tomas Wagner, Yanqiu Du, Gerald Farrell, Pengfei Wang, Distribution of Tm3+ and Ni2+ in chalcogenide glass ceramics containing Ga2S3 nanocrystals: Influence on photoluminescence properties, Journal of the European Ceramic Society, Volume 39, Issue 7, 2019, Pages 2580-2584, ISSN 0955-2219, DOI: 10.1016/j.jeurceramsoc.2019.01.055.
Key Program for International S&T Cooperation Projects of China; National Natural Science Foundation of China; Natural Science Foundation of Heilongjiang Province of China; State Key Laboratory on Integrated Optoelectronics; Fundamental Research Funds for the Central Universities; Harbin Engineering University