Preparation of Compensation Ions Codoped SrTiO₃:Pr³⁺ Red Phosphor with the Sol-Gel Method and Study of Its Luminescence Enhancement Mechanism

Table 2

The first set of samples (110) diffraction peak characteristic values ​​and parameters.

Number of samples	Diffraction angle
Pr^3+0.2% mol	32.16
Pr^3+0.2% mol, Mg^2+10% mol	32.18
Pr^3+0.2% mol, Al^3+25% mol	32.3
Pr^3+0.2% mol, Al^3+1% mol	32.24
Pr^3+0.2% mol, Al^3+15% mol	32.26
Pr^3+0.2% mol, Al^3+30% mol	32.2