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SrTiO: Sm, Na-codoped orange-emitting nanophosphor for pc-WLEDs

Journal of Materials Science: Materials in Electronics, ISSN: 1573-482X, Vol: 33, Issue: 11, Page: 1-15
2022
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Article Description

The advent of modernization is signified by the comprehensive effort given to the production of white light-emitting diodes (WLEDs), which have the potential of serving with elevated photoluminescence (PL) properties. One of the essential components that are required for the widespread production of WLEDs is the orange phosphor that said its shortfall is the substantial barrier for WLEDs to flourish. The following work deals with solving this problem by utilizing Na-coactivated SrTiO (STO): Sm which is a fine candidate for the production of single-phase high-intensity orange light. The main mode of synthesis has been the sol–gel technique where the average particle sizes are around 50 nm to 80 nm. The phosphor resonated with the desired high-intensity orange emission when it is excited by light of the wavelength 408 nm. Besides, verification of the fact that the Sm-doped STO with Na yields nearly 1.5 times higher intensity and ameliorated thermal stability than the normal Sm-doped STO, is shown. Thus, when Na-coactivated Sm doped STO is utilized in the production of WLEDs, it will leave a prominent mark in the manifestation of highly efficient white light.

Bibliographic Details

Angshuman Santra; Nisnat Chakraborty; Uttam Kumar Ghorai; Karamjyoti Panigrahi; Kalyan K. Chattopadhyay

Springer Science and Business Media LLC

Materials Science; Physics and Astronomy; Engineering

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