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<p>Zn<sub>3</sub>V<sub>2</sub>O<sub>8</sub> (or ZVO) nanophosphor was prepared using a simple solution-combustion technique and sintered at 700–800°C for 5 h. The effects of additive and sintering temperatures on structural, morphological and optical properties have been investigated. The structural studies revealed an orthorhombic phase structure. The <i>d</i>-spacing and lattice constants also increased with the sintering temperature. The microplate-shaped morphology of ZVO sintered at 750°C is confirmed by SEM and TEM pictures, with an average grain size of roughly 3–5 μm. The optical energy gap of the direct transition is also estimated, and it decreases from 3.4 to 3.1 eV with the increase in sintering temperature. The ZVO also demonstrated a broad photoluminescence (PL) emission range between 450 and 600 nm, with a peak at 534 nm, indicating green luminescent emission. Large grains with microplate shapes emit the highest PL intensity in ZVO phosphor at 750°C.</p>

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Effects of additive and sintering temperatures on solution-combustion Zn3V2O8 green phosphor

  • 期刊论文

  • 发表日期：

    2025年2月4日

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  • Moges Tsega

摘要

Zn3V2O8 (or ZVO) nanophosphor was prepared using a simple solution-combustion technique and sintered at 700–800°C for 5 h. The effects of additive and sintering temperatures on structural, morphological and optical properties have been investigated. The structural studies revealed an orthorhombic phase structure. The d-spacing and lattice constants also increased with the sintering temperature. The microplate-shaped morphology of ZVO sintered at 750°C is confirmed by SEM and TEM pictures, with an average grain size of roughly 3–5 μm. The optical energy gap of the direct transition is also estimated, and it decreases from 3.4 to 3.1 eV with the increase in sintering temperature. The ZVO also demonstrated a broad photoluminescence (PL) emission range between 450 and 600 nm, with a peak at 534 nm, indicating green luminescent emission. Large grains with microplate shapes emit the highest PL intensity in ZVO phosphor at 750°C.