Diamond–Rare Earth Composites with Embedded NaGdF4:Eu Nanoparticles as Robust Photo- and X-ray-Luminescent Materials for Radiation Monitoring Screens
Source abstract
Abstract
Thin-film diamond–rare earth fluoride nanocomposites have been produced by chemical vapor deposition to be used as a source of intensive photo- and X-ray luminescence. The composites with embedded Eu-containing nanoparticles show high-intensity orange narrow-band photoluminescence near the wavelength of 612 nm. Using β-NaGdF4:Eu instead of Eu(III) tri-(2,6-pyridine dicarboxylic acid) and europium fluoride in the diamond matrix resulted in enhanced signal/noise ratio in the luminescence. The mapping of the spatial distribution of photoluminescence intensity on macro- and micro scale revealed highly uniform emission originated from the composite. The developed composite material with mechanically strong, highly thermally conducting and transparent diamond matrix opens a way to use the diamond–fluoride composites as photo- and X-ray luminescent screens (scintillators) capable to withstand high photon fluxes.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Diamond and Carbon-based Materials Research · Luminescence Properties of Advanced Materials · High-pressure geophysics and materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow 119991, Russia
Harbin Institute of Technology, Harbin 150001, P.R. China
Institute of Radio Engineering and Electronics, Russian Academy of Sciences, 141190 Fryazino, Russia
Physics Faculty of Lomonosov Moscow State University, Moscow 119991, Russia
Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119991, Russia
MIREA - Russian Technological University, Moscow 119454, Russia
Funding
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