Photoluminescence characteristics of Li-doped CaTiO3:Pr3+ thin films grown on Si (100) substrate by PLD

作者：Yang Hyun Kyoun; Chung Jong Won; Moon Byung Kee; Choi Byung Chun; Jeong Jung Hyun^*; Jang Ki Wan; Lee Ho Sueb; Yi Soung Soo; Kim Kwang Ho

来源：Thin Solid Films, 2010, 518(22): 6219-6222.

DOI：10.1016/j.tsf.2010.03.171

• CaTiO3:Pr3+
• Lithium doping
• Thin film
• Phosphor
• PLD

The effects of Li-doped CaTiO3:Pr3+ thin films have been investigated by varying the lithium ion concentrations from 0 to 5 wt.%. The films have been deposited on Si (100) substrate using a pulsed laser deposition technique. Structural properties of these films have been studied by the measurement of their XRD, SEM, and AFM. The variation of Li+ concentration influences the crystallinity and surface morphology of the CaTiO3:Pr3+ thin films. As Li+ content increases from 0 to 1 wt.%. the crystallinity and intensity of emission increases. The dominant emission is from D-1(2)-> H-3(4) transition at 613 nm. The D-1(2) emission quenching has also been observed in highly doped sample and is related to the cross-relaxation process between Pr3+ ions.

• 出版日期2010-9-1