Improving Upconversion Photoluminescence of GdAlO<sub>3</sub>:Er<sup>3+</sup>, Yb<sup>3+</sup> Phosphors via Ga<sup>3+</sup>, Lu<sup>3+</sup> Doping

<p>UCPL intensity of Gd(<span class="nowrap"><svg height="12.4177pt" id="M22" style="vertical-align:-3.18155pt" version="1.1" viewbox="-0.0498162 -9.23615 45.0166 12.4177" width="45.0166pt" xmlns="http://www.w3.org/2000/svg"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M673 0V28C608 34 594 43 563 129C499 303 432 494 370 665L339 656L132 132C98 43 84 37 20 28V0H238V28C162 35 154 45 175 108C188 150 203 192 219 237H432C454 176 474 122 487 83S491 36 428 28V0H673ZM418 280H234C265 362 296 450 328 535H330L418 280Z"></path></g><g transform="matrix(.013,0,0,-0.013,9.022,0)"><path d="M238 0V26C174 32 166 38 166 104V712C132 700 70 683 18 677V653C81 647 87 645 87 577V104C87 38 78 32 15 26V0H238Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,12.357,3.132)"><path d="M389 0V32C297 38 291 46 291 118V635C234 613 175 595 109 583V556L161 554C203 552 207 547 207 497V118C207 46 201 38 110 32V0H389Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,16.789,3.132)"><path d="M300 253H71L57 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International Journal of Optics

fig3

Figure 3

Figure 3: Improving Upconversion Photoluminescence of GdAlO<sub>3</sub>:Er<sup>3+</sup>, Yb<sup>3+</sup> Phosphors via Ga<sup>3+</sup>, Lu<sup>3+</sup> Doping 

International Journal of Optics

Improving Upconversion Photoluminescence of GdAlO3:Er3+, Yb3+ Phosphors via Ga3+, Lu3+ Doping

Figure 3

Improving Upconversion Photoluminescence of GdAlO₃:Er³⁺, Yb³⁺ Phosphors via Ga³⁺, Lu³⁺ Doping