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Photoluminescence characteristics of Li-doped CaTiO3:Pr thin films grown on Si (100) substrate by PLD |
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| Authors: | Hyun Kyoung Yang Byung Kee Moon Jung Hyun Jeong Ki-wan Jang Soung Soo Yi |
| Affiliation: | a Department of Physics, Pukyong National University, Busan 608-737, Republic of Korea b Department of Physics, Changwon National University, Changwon 641-773, Republic of Korea c Department of Electronic Materials Engineering, Silla University, Busan, 617-736, Republic of Korea d School of Materials Science and Engineering, Pusan National University, Busan, 609-735, Republic of Korea |
| Abstract: | 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 1D2 → 3H4 transition at 613 nm. The 1D2 emission quenching has also been observed in highly doped sample and is related to the cross-relaxation process between Pr3+ ions. |
| Keywords: | CaTiO3:Pr3+ Lithium doping Thin film Phosphor PLD |
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