Synthesis of Blue-Green Phosphors Sr<sub><b>4</b></sub>Si<sub><b>3</b></sub>O<sub><b>8</b></sub>Cl<sub><b>4</b></sub>:Eu<sup>2+</sup> by Gel-Combustion Method and Their Luminescent Properties

<table>Excitation spectrum (a) and emission spectrum (b) of Sr<sub>4</sub>Si<sub>3</sub>O<sub>8</sub>Cl<sub>4</sub>:<svg height="16.049999" id="M29" style="vertical-align:-0.16379pt" version="1.1" viewbox="0 0 31.75 16.049999" width="31.75" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,0,0,-.017,.062,15.775)"><path d="M517 162l29 -4q-18 -100 -35 -158h-482v28q68 5 83.5 20t15.5 77v398q0 66 -13 80t-73 19v28h446q0 -8 8 -144l-29 -4q-11 51 -32 85q-11 17 -35 23t-78 6h-76q-23 0 -28 -5t-5 -27v-228h94q67 0 83 12t25 63h29v-191h-29q-10 54 -26 65.5t-81 11.5h-95v-189
q0 -65 24 -81q19 -13 104 -13q57 0 83 7t43 27q28 33 50 94z" id="x45"></path></g><g transform="matrix(.017,0,0,-.017,9.344,15.775)"><path d="M518 50v-26q-32 -4 -77 -16l-37 -11t-33 -9l-6 6v71q-56 -42 -74 -52q-43 -25 -77 -25q-55 0 -89.5 36.5t-34.5 112.5v196q0 38 -6.5 48.5t-26.5 15.5l-28 6v23q19 1 72 7q59 9 71 11q-3 -31 -3 -145v-135q0 -113 88 -113q59 0 108 48v234q0 38 -8 49t-34 15l-36 6v23
q44 2 90 8q37 4 67 10v-334q0 -37 8.5 -47t38.5 -12z" id="x75"></path></g>
<g transform="matrix(.012,0,0,-.012,18.375,7.613)"><path d="M412 140l28 -9q0 -2 -35 -131h-373v23q112 112 161 170q59 70 92 127t33 115q0 63 -31 98t-86 35q-75 0 -137 -93l-22 20l57 81q55 59 135 59q69 0 118.5 -46.5t49.5 -122.5q0 -62 -29.5 -114t-102.5 -130l-141 -149h186q42 0 58.5 10.5t38.5 56.5z" id="x32"></path></g><g transform="matrix(.012,0,0,-.012,24.086,7.613)"><path d="M535 230h-212v-233h-58v233h-213v50h213v210h58v-210h212v-50z" id="x2B"></path></g>
</svg>. </table>

Journal of Chemistry

fig2

Figure 2

Figure 2: Synthesis of Blue-Green Phosphors Sr<sub><b>4</b></sub>Si<sub><b>3</b></sub>O<sub><b>8</b></sub>Cl<sub><b>4</b></sub>:Eu<sup>2+</sup> by Gel-Combustion Method and Their Luminescent Properties 

Journal of Chemistry

Synthesis of Blue-Green Phosphors Sr4Si3O8Cl4:Eu2+ by Gel-Combustion Method and Their Luminescent Properties

Figure 2

Synthesis of Blue-Green Phosphors Sr₄Si₃O₈Cl₄:Eu²⁺ by Gel-Combustion Method and Their Luminescent Properties