Prabha Materials Science Letters, Год журнала: 2025, Номер 4(2), С. 170 - 178
Опубликована: Март 1, 2025
We have synthesized Eu3+ doped poly vinyl alcohol (PVA) polymer film by the solution-casting method. The vibration features of are analyzed using FTIR spectrum. In spectrum, many peaks observed and correlate with different branches vibrations. On excitation 325 nm, ions emit at 579 592 615 649 698 nm through transitions 5D0→7F0, 5D0→7F1, 5D0→7F2, 5D0→7F3, 5D0→7F4 respectively. These verified help energy level diagram. addition, we a broad peak Eu2+ in range 450 to 550 centered 500 nm. Some stark splitting also has been 5D0 →7F0 5D0→7F4. micron - second lifetime is correlated emission
Язык: Английский