Ultrasound assisted fabrication of SrTiO3 nanopowders: Effect of electron beam induced structural and luminescence properties for solid state lightning and high temperature dosimetry applications
Source abstract
Abstract
Abstract Strontium titanate (SrTiO3) nanopowders are prepared by ultrasound assisted sonochemical route using Polyethylene glycol as a surfactant. The obtained product is irradiated with 8 MeV electrons with electrons dose strength of 2 kGy, 4 kGy, 6 kGy and 8 kGy. The powder X-ray diffraction studies reveals well indexed cubic structure in both pristine and electron beam irradiated samples. Morphological results evidence the spherical shaped nanopowders. The energy band gap was found to be decrease with increase of electron beam irradiation strength. The photoluminescence emission spectra of pristine and electron beam irradiated samples exhibit defects related peaks at ∼424, 444, 460, 483 and 520 nm. Upon electron beam irradiation, the Commission International de I'Eclairage color coordinates are engineered from deep blue color to cyan color. A single thermoluminescence glow peak is recorded at ∼213 °C in all the electron beam irradiated samples up to given dose range 2 kGy, 4 kGy, 6 kGy and 8 kGy. The trapping parameters (E, s) are calculated by employing various methods. Linear dose response, less fading and high reproducibility of electron beam irradiated SrTiO3 samples broadly indicated its suitability for thermoluminescence dosimetry applications.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Photorefractive and Nonlinear Optics · Photoacoustic and Ultrasonic Imaging
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (68)
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