Scholarlink

<p>K<sub>2</sub>Mg<sub>(1-x)</sub>P<sub>2</sub>O<sub>7</sub>Sm<sub>x</sub> (x <i>=</i> 0.5–5&#xa0;mol%) pyrophosphates were synthesized using a self-propagating solution combustion approach with the objective of generating luminous material for applications involving white light-emitting diodes. The structure formation of single-phase phosphor is validated, by the XRD and the presence of pyrophosphate (P<sub>2</sub>O<sub>7</sub>)<sup>4-</sup> group is validated, by the FTIR. The HRTEM and XPS validates the morphological and electronic studies of the synthesized nanophosphor, respectively. The optical bandgap is determined by plotting the Tauc’s plot using diffuse reflectance spectrum. In PL spectroscopy, at <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(\:{\varvec{\lambda\:}}_{\varvec{e}\varvec{x}\varvec{c}}\)</EquationSource> </InlineEquation>= 402 <i>nm</i> the Sm<sup>3+</sup> doped K<sub>2</sub>MgP<sub>2</sub>O<sub>7</sub> nanophosphor shows a sharp emission peak at 603 <i>nm</i>, which corresponds to the transition <sup>4</sup>G<sub>5/2</sub> → <sup>6</sup>H<sub>7/2</sub> of Sm<sup>3+</sup> ions. Furthermore, according to photometric investigations for optimum concentration, the color purity is 87%, the CCT is 1768 <i>K</i>, and the CIE coordinates are (<i>x</i> = 0.58, <i>y</i> = 0.42). The intact studies suggest that the phosphor is specially featured to emit in the amber region and have the potential to be used in the lamp industry, especially in solid-state lighting applications.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Sm3+ Activated Potassium Magnesium Pyrophosphate Nanophosphor: Synthesis, Structure, Optical and Luminescence Studies

  • 期刊论文

  • 发表日期：

    2025年6月7日

查看全文
  • Arti Khajuria,
  • Vishav Deep Sharma,
  • Pooja Khajuria,
  • Ram Prakash

摘要

K2Mg(1-x)P2O7Smx (x = 0.5–5 mol%) pyrophosphates were synthesized using a self-propagating solution combustion approach with the objective of generating luminous material for applications involving white light-emitting diodes. The structure formation of single-phase phosphor is validated, by the XRD and the presence of pyrophosphate (P2O7)4- group is validated, by the FTIR. The HRTEM and XPS validates the morphological and electronic studies of the synthesized nanophosphor, respectively. The optical bandgap is determined by plotting the Tauc’s plot using diffuse reflectance spectrum. In PL spectroscopy, at \(\:{\varvec{\lambda\:}}_{\varvec{e}\varvec{x}\varvec{c}}\) = 402 nm the Sm3+ doped K2MgP2O7 nanophosphor shows a sharp emission peak at 603 nm, which corresponds to the transition 4G5/2 → 6H7/2 of Sm3+ ions. Furthermore, according to photometric investigations for optimum concentration, the color purity is 87%, the CCT is 1768 K, and the CIE coordinates are (x = 0.58, y = 0.42). The intact studies suggest that the phosphor is specially featured to emit in the amber region and have the potential to be used in the lamp industry, especially in solid-state lighting applications.