Bi3+ as an enhancer for down- and upconversion luminescence in ternary vanadate structures. Issue 17 (1st September 2021)

• Record Type: Journal Article
• Authors: Kaczorowska, Nina; Szczeszak, Agata; Lis, Stefan
• Is Part Of: Ceramics international. Volume 47:Issue 17(2021)
• Page Start: 24182
• Page End: 24190
• Publication Date: 2021-09-01
• Subjects: Nanomaterials -- Luminescence -- Vanadates -- Upconversion -- Downconversion -- Bi3+ enhancement; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2021.05.129
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: A series of dual-mode nanomaterials based on Ba2 LaV3 O11 :Yb 3+, Er 3+, Bi 3+, with different bismuth content were synthesized using the hydrothermal method. Various analytical methods, such as x-ray diffraction (XRD) with additional detailed Rietveld analysis, transmission electron microscopy (TEM), inductively coupled plasma mass spectroscopy (ICP-MS) and laser spectroscopy have confirmed that with increasing Bi 3+ content, phase purity, optical absorption and luminescence intensity significantly increased. Moreover, a slight luminescence color tunability was observed along with the gradual introduction of bismuth into the host structure since, among the others, the local crystal field around emitting Er 3+ ions was changing. The use of ultraviolet and near-infrared excitation wavelengths allowed to obtain a dual mode luminescence, which extended the emission range and demonstrated the possibility of using the studied materials, e.g. in solar cells.