<p>A solid-state reaction synthesis method was used to prepare Sm<sup>3+</sup> doped Ca<sub>3</sub>Al<sub>2</sub>Si<sub>2</sub>O<sub>8</sub>Cl<sub>4</sub> phosphors. Body centered cubic structure with space group la3d (No. 230) was confirmed by the X-ray diffraction method (XRD). The size and morphology&#xa0;of the synthesized&#xa0;microparticles were determined by scanning electron microscopy (SEM). The elements that are present in the prepared&#xa0;sample have been confirmed by elemental mapping and EDS. The luminescence emission and excitation spectra of Sm<sup>3+</sup> doped Ca<sub>3</sub>Al<sub>2</sub>Si<sub>2</sub>O<sub>8</sub>Cl<sub>4</sub> phosphors result in peaks of notable intensity and strength. There is significant emission peak in the orange region at 565, 603, and 652&#xa0;nm when the matrix is excited at 403&#xa0;nm due to its <sup>4</sup>G<sub>5/2</sub> <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(\to\)</EquationSource> <EquationSource Format="MATHML"><math> <mo stretchy="false">→</mo> </math></EquationSource> </InlineEquation> <sup>6</sup>H<sub>5/2</sub>, <sup>4</sup>G<sub>5/2</sub> <InlineEquation ID="IEq2"> <EquationSource Format="TEX">\(\to\)</EquationSource> <EquationSource Format="MATHML"><math> <mo stretchy="false">→</mo> </math></EquationSource> </InlineEquation> <sup>6</sup>H<sub>7/2</sub>, and <sup>4</sup>G<sub>5/2</sub> <InlineEquation ID="IEq3"> <EquationSource Format="TEX">\(\to\)</EquationSource> <EquationSource Format="MATHML"><math> <mo stretchy="false">→</mo> </math></EquationSource> </InlineEquation> <sup>6</sup>H<sub>9/2</sub> transitions respectively. Synthetic phosphors have potential applications in LED, lighting- display technology and optical devices.</p> Graphical Abstract <p></p>

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Synthesis and Spectroscopic Analysis of Ca3Al2Si2O8Cl4:Sm3+ Phosphors for Optical Applications

  • Sandip Parkhi,
  • Shaukat A. Shah,
  • Akshay Pimpalkar,
  • Shruti Dhale,
  • Prachita A. Patil,
  • Nilesh S. Ugemuge

摘要

A solid-state reaction synthesis method was used to prepare Sm3+ doped Ca3Al2Si2O8Cl4 phosphors. Body centered cubic structure with space group la3d (No. 230) was confirmed by the X-ray diffraction method (XRD). The size and morphology of the synthesized microparticles were determined by scanning electron microscopy (SEM). The elements that are present in the prepared sample have been confirmed by elemental mapping and EDS. The luminescence emission and excitation spectra of Sm3+ doped Ca3Al2Si2O8Cl4 phosphors result in peaks of notable intensity and strength. There is significant emission peak in the orange region at 565, 603, and 652 nm when the matrix is excited at 403 nm due to its 4G5/2 \(\to\) 6H5/2, 4G5/2 \(\to\) 6H7/2, and 4G5/2 \(\to\) 6H9/2 transitions respectively. Synthetic phosphors have potential applications in LED, lighting- display technology and optical devices.

Graphical Abstract