Interface-Induced Modifications in the Ferroelectric properties of 200 MeV Ag+15 Ion-Irradiated ZnO-BaTiO3 Nanocomposite Films.
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| Title: | Interface-Induced Modifications in the Ferroelectric properties of 200 MeV Ag+15 Ion-Irradiated ZnO-BaTiO |
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| Authors: | Kundalia, Hetal1 (AUTHOR) hetal.kundalia@gmail.com, Ravalia, Ashish1 (AUTHOR), Meena, Ramcharan2 (AUTHOR), Asokan, K.2,3 (AUTHOR), Vyas, Brinda4 (AUTHOR), Kuberkar, D. G.1 (AUTHOR) |
| Source: | Journal of Electronic Materials. Oct2024, Vol. 53 Issue 10, p5981-5989. 9p. |
| Subjects: | Space charge, Thin films, Surface morphology, X-ray diffraction, Heavy ions, Irradiation |
| Abstract: | Studies on nanocomposite films with an optimized composition of 0.6ZnO-0.4BaTiO3/Al2O3 were carried out to understand the effect of swift heavy ion (SHI)-induced modifications on the ferroelectric properties inspired by interface mixing. XRD measurements showed the presence of ZnO and BaTiO3 phases in pristine film which was modified by irradiation. Surface modifications induced by SHI irradiation, as studied using AFM, revealed the evolution of nanosized rod and hillock-like microstructure on the film surface with the increase in irradiation dose. The variations in film thickness and elemental compositions were studied using RBS spectrometry, and an intermixing zone ~ 25 nm was identified in the film irradiated by 5 × 1010 ions/cm2 which increased with the ion fluence. Ferroelectric (P-E) loops showed a significant change in the hysteresis characteristics which was understood on the basis of modifications in the surface morphology and the interface between the wurtzite-structured ZnO and the perovskite-structured BaTiO3 responsible for the space charge region. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | Studies on nanocomposite films with an optimized composition of 0.6ZnO-0.4BaTiO3/Al2O3 were carried out to understand the effect of swift heavy ion (SHI)-induced modifications on the ferroelectric properties inspired by interface mixing. XRD measurements showed the presence of ZnO and BaTiO3 phases in pristine film which was modified by irradiation. Surface modifications induced by SHI irradiation, as studied using AFM, revealed the evolution of nanosized rod and hillock-like microstructure on the film surface with the increase in irradiation dose. The variations in film thickness and elemental compositions were studied using RBS spectrometry, and an intermixing zone ~ 25 nm was identified in the film irradiated by 5 × 1010 ions/cm2 which increased with the ion fluence. Ferroelectric (P-E) loops showed a significant change in the hysteresis characteristics which was understood on the basis of modifications in the surface morphology and the interface between the wurtzite-structured ZnO and the perovskite-structured BaTiO3 responsible for the space charge region. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 03615235 |
| DOI: | 10.1007/s11664-024-11367-4 |
