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 (<span class="nowrap"><svg height="14.724pt" id="M52" style="vertical-align:-5.48785pt" version="1.1" viewbox="-0.0498162 -9.23615 58.7712 14.724" width="58.7712pt" xmlns="http://www.w3.org/2000/svg"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M692 302H438V274C537 267 543 260 543 188V103C543 61 531 48 511 37C489 26 458 20 424 20C231 20 146 188 146 333C146 517 258 630 411 630C507 630 582 597 606 474L634 480C627 546 622 601 619 636C586 643 510 665 426 665C230 665 44 552 44 321C44 122 191 -15 411 -15C491 -15 573 7 635 21C629 49 628 81 628 116V202C628 261 632 266 692 274V302Z"></path></g><g transform="matrix(.013,0,0,-0.013,9.399,0)"><path d="M517 51L485 54C448 58 441 63 441 115V712C404 700 337 684 285 678V653C357 648 362 645 362 580V437C339 446 309 449 295 449C159 449 38 340 38 201C38 61 143 -12 223 -12C234 -12 261 -6 301 17L362 53V-12C420 9 495 22 517 26V51ZM362 85C338 67 301 51 266 51C201 51 128 109 128 228C128 373 212 411 259 411C296 411 338 395 362 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110V444C429 441 405 437 377 434C348 430 314 427 287 426V403L323 397C356 392 365 386 365 333V99C331 66 293 51 257 51C212 51 169 75 169 164V299C169 366 169 413 172 444C156 441 128 437 101 433C75 430 50 427 29 426V403L57 397C82 391 90 386 90 333V137C90 29 147 -12 214 -12C241 -12 262 -4 291 13S342 48 365 65V-6L371 -12C390 -7 415 1 441 8C468 15 496 21 518 24V50Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,53.716,3.132)"><path d="M488 439H302V409C359 401 366 390 354 354C333 287 289 177 262 107L171 356C158 391 163 402 210 409L209 439H3V409C59 401 68 388 90 336C119 267 164 144 204 31C211 16 211 0 206 -15C202 -27 195 -48 176 -81C153 -124 134 -146 102 -166C85 -177 77 -187 77 -203C77 -228 107 -253 136 -253C151 -253 164 -248 169 -228C185 -175 203 -120 273 41C342 204 375 284 399 337C425 392 435 401 488 409V439Z"></path></g></svg>)</span>AlO<sub>3</sub>: <span class="nowrap"><svg height="14.8825pt" id="M53" style="vertical-align:-3.2911pt" version="1.1" viewbox="-0.0498162 -11.5914 38.8876 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International Journal of Optics

fig7

Figure 7

Figure 7: 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 7

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