Ultrabroadband mid-infrared emission from Cr2+-doped infrared transparent chalcogenide glass ceramics embedded with thermally grown ZnS nanorods. Issue 11 (September 2019)

• Record Type: Journal Article
• Authors: Lu, Xiaosong; Lai, Zhiqiang; Zhang, Runan; Guo, Haitao; Ren, Jing; Strizik, Lukas; Wagner, Tomas; Farrell, Gerald; Wang, Pengfei
• Is Part Of: Journal of the European Ceramic Society. Volume 39:Issue 11(2019)
• Page Start: 3373
• Page End: 3379
• Publication Date: 2019-09
• Subjects: Mid-infrared (MIR) emission -- Chalcogenide glass -- Glass ceramics; Ceramic materials -- Periodicals; Composite materials -- Periodicals; Matériaux céramiques -- Périodiques; Composites -- Périodiques; Ceramic materials; Composite materials; Periodicals; Electronic journals; 666.05
• DOI: 10.1016/j.jeurceramsoc.2019.04.048
• Languages: English
• ISSNs: 0955-2219

Abstract

Abstract: We report, for the first time to our knowledge, an ultrabroadband mid-infrared (MIR) emission in the range of 1800–2800 nm at room temperature from a Cr 2+ -doped chalcogenide glass ceramic embedded with pure hexagonal (wurtzite) β-ZnS nanorods and study the emission-dependent properties on the doping concentration of Cr 2+ . A new family of chalcogenide glasses based on (100 − x ) Ge1.5 As2 S6.5 – x ZnSe (in mol.%) was prepared by melt-quenching method. The Cr 2+ : β-ZnS nanorods of ˜150 nm in diameter and ˜1 μm in length were grown in the Cr 2+ -doped glass after thermal annealing. The compositional variations of glass structures and optical properties were studied. The crystalline phase, morphology of the thermally grown nanorods, and the microscopic elemental distributions were characterized using advanced nanoscale transmission electron microscopy analyses.