[Retracted] Effect of Manganese Ions on Spectroscopic and Insulating Properties of Aluminophosphate Glasses

Table 4

Data on various band positions from the optical absorption spectra of CdO-Al₂O₃-P₂O₅: MnO glasses.

Glass	Band edge (nm)	Band position λ (nm) due to Mn^2+ transitions	Band position λ (nm) due to Mn^3+ transition	Optical band gap energy Eopt	Urbach energy E (eV)
CAPM_0	320.5	—	—	2.56	0.61
CAPM_1	315.7	500	—	2.44	1.03
CAPM_2	308.0	497.5	—	2.52	0.89
CAPM_3	301.5	—	490	2.53	0.67
CAPM_4	300	—	488	2.75	0.55