Characterization of Te nanoparticles synthesized by plasma processing. (October 2020)

• Record Type: Journal Article
• Authors: Iesari, Fabio; Hatada, Keisuke; Patel, Jigar; Balasubramanian, Chidambara; Miyanaga, Takafumi; Ikemoto, Hiroyuki
• Is Part Of: Radiation physics and chemistry. Volume 175(2020:Oct.)
• Publication Date: 2020-10
• Subjects: tellurium -- Nanoparticle -- EXAFS; Radiation chemistry -- Periodicals; Radiometry -- Periodicals; Radiation -- Periodicals; Chimie sous rayonnement -- Périodiques; 539.2
• DOI: 10.1016/j.radphyschem.2019.05.024
• Languages: English
• ISSNs: 0969-806X

Abstract

Abstract: The local structure of Tellurium nanoparticles synthesized by arc plasma were studied by X-ray absorption spectroscopy. Nanoparticles were characterized by using different techniques to reveal particles size, morphology and composition. Te K-edge EXAFS spectra reveal a structure similar to trigonal Te, where both the inter-chain and intra-chain bonds, typical of Te crystal structure, are present. Evolution of the Debye-Waller factor with temperature reveals an increased static disorder in the nanoparticles respect to the trigonal material. Highlights: Size of Te nanoparticles created by plasma processing is around 100 nm. Inter-chain interactions are preserved. Increase of static disorder respect to crystal Te.