Abstract
Mechanoluminescence (ML) material starts receiving attention as two-dimensionally visualizing physical phenomena such as strain, stress, or load. This paper focused on the synthesis of ML materials with multi-elements using an organic acid-aided method and the optical properties of ML materials such as SrAl2O4 doped with Eu2+, Eu2++Cr3+, Eu2++Nd3+, or Eu2++Cr3++Nd3+ ions, which emit multi-wavelength luminescence including visible, NIR, and SWIR ranges. From the characterizations of the synthesized materials, we conclude that the organic acid-aided method can synthesize even the complex ML material including multi-elements. Moreover, The SrAl2O4 doped with Eu2+, Cr3+, and Nd3+ ions showed the highest ML intensity in the wavelength range of 750 – 1000 nm compared to the other synthesized ML materials, although there was almost no difference in the crystal structure and particle morphology.
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