Enhanced UV transparency in phosphate glasses via multi-wall carbon nanotubes. Issue 41 (5th October 2016)

• Record Type: Journal Article
• Authors: Jiménez, José A.; Sendova, Mariana; Fachini, Esteban Rosim; Zhao, Chunqing
• Is Part Of: Journal of materials chemistry. Volume 4:Issue 41(2016)
• Page Start: 9771
• Page End: 9778
• Publication Date: 2016-10-05
• Subjects: Materials -- Periodicals; Chemistry, Analytic -- Periodicals; Optical materials -- Research -- Periodicals; Electronics -- Materials -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c6tc03398a
• Languages: English
• ISSNs: 2050-7526

Abstract

Abstract : Multi-wall carbon nanotubes (MWCNTs) are demonstrated to be valuable for producing glasses with enhanced UV transparency relevant to high-performance optics. Abstract : Multi-wall carbon nanotubes are systematically explored for the first time as a means to obtain an enhanced ultraviolet (UV) transparency in melt-quenched phosphate glasses. An optical characterization is carried out by UV/Vis transmission and photoluminescence spectroscopy including time-resolved measurements. 31 P nuclear magnetic resonance, Raman microspectroscopy, differential scanning calorimetry and X-ray photoelectron spectroscopy are employed to further investigate the source of the improved UV light transmission. The data suggest that the formation of P–O–C bonds is connected to the enhanced UV transparency. A model is presented accounting for the incorporation of carbon into the phosphate network facilitated by the creation of intermediate reactive oxygen species.