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Abstrak
Lanthanum Orthoferrite (LaFeO3) merupakan salah satu material perovskite oxide ABO3 dengan struktur ortorombik. Pada penelitian ini telah disintesis LaFeO3 yang disubstitusi Zr pada situs Fe (LaFe0.97Zr0.03O3) yang dipreparasi dengan teknik sol-gel. Tujuan dari penelitian ini adalah untuk menganalisis sifat struktur kristal dan listrik material LaFe0.97Zr0.03O3. LaFe0.97Zr0.03O3 yang telah dipreparasi, diuji menggunakan XRD menunjukkan sampel yang single phase, struktur Orthorhombic dan space group Pbnm. Hasil uji SEM menunjukkan bahwa penambahan jumlah Zr menyebabkan rata-rata ukuran grain menurun yang konsisten dengan hasil dari XRD. Uji listrik pada material dilakukan dengan menggunakan metode impedance spectroscopy sebagai fungsi frekuensi (100Hz –1 MHz) dengan menggunakan RLC meter. Data IS disajikan dalam bentuk Nyquist Plot dan Bode Plot, yang digunakan untuk mengindentifikasi parameter rangkaian yang ekuivalen beserta nilainya. Hasil uji dengan RLC meter menunjukkan diameter semi-sirkular menurun seiring peningkatan temperatur, mengindikasikan material ini bersifat semikonduktor serta adanya peningkatan konduktivitas pada sampel dan penurunan nilai resistansi.
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References
- C. Sunandar, PENUMBUHAN FILM BaxSr1-xTiO3 DAN BaFeSrTiO3 DAN OBSERVASI SIFAT FERROELEKTRIKNYA. 2006.
- E. Aksel, “Structure and Properties of Sodium Bismuth Titanate Ferroelectric Ceramics,†Mater. Sci. Eng., vol. Ph.D., p. 204, 2012, [Online]. Available: http://ufdc.ufl.edu/UFE0043928/00001.
- RichaRd J. d. Tilley, Perovskites Structure–Property Relationships, First., no. c. Cardiff University, UK: SPi Global, Pondicherry, india, 2016.
- A. Abdalla, S. Hossain, P. Petra, and A. Azad, “Effect of Zr addition on structure and electrical properties of SmFeO3 prepared by solid state reaction method,†Process. Appl. Ceram., vol. 11, no. 4, pp. 275–281, 2018, doi: 10.2298/pac1704275a.
- W. Fan, Z. Sun, J. Wang, J. Zhou, K. Wu, and Y. Cheng, “A new family of Ce-doped SmFeO3 perovskite for application in symmetrical solid oxide fuel cells,†J. Power Sources, vol. 312, pp. 223–233, 2016, doi: 10.1016/j.jpowsour.2016.02.069.
- S. Phokha, S. Hunpratup, S. Pinitsoontorn, and B. Putasaeng, “Structure , magnetic , and dielectric properties of Ti-doped LaFeO 3 ceramics synthesized by polymer pyrolysis method,†Mater. Res. Bull., vol. 67, pp. 118–125, 2015, doi: 10.1016/j.materresbull.2015.03.008.
- A. Mitra, A. S. Mahapatra, A. Mallick, A. Shaw, M. Ghosh, and P. K. Chakrabarti, “Simultaneous enhancement of magnetic and ferroelectric properties of LaFeO 3 by co-doping with Dy 3+ and Ti 4+,†J. Alloys Compd., vol. 726, pp. 1195–1204, 2017, doi: 10.1016/j.jallcom.2017.08.074.
- A. Benali, M. Bejar, E. Dhahri, M. Sajieddine, M. P. F. Graça, and M. A. Valente, “Magnetic, Raman and Mössbauer properties of double-doping LaFeO3 perovskite oxides,†Mater. Chem. Phys., vol. 149, no. January, pp. 467–472, 2015, doi: 10.1016/j.matchemphys.2014.10.047.
- A. Kaur, L. Singh, and K. Asokan, “Electrical relaxation and conduction mechanisms in iron doped barium strontium titanate,†Ceram. Int., vol. 44, no. 4, pp. 3751–3759, 2018, doi: 10.1016/j.ceramint.2017.11.158.
- B. K. F. N. O, S. Dash, R. N. P. Choudhary, P. R. Das, and A. Kumar, “Structural , dielectric , and multiferroic properties of,†vol. 744, no. December 2014, pp. 738–744, 2015, doi: 10.1139/CJP-2014-0025.
- S. . Khetre, H. . Jadhav, P. . Jagadale, S. . Kulal, and S. . Bamane, “Studies on electrical and dielectric properties of LaFeO 3,†Pelagia Res. Libr., vol. 2, no. 4, pp. 503–511, 2011.
- S. Irfan et al., “The Gadolinium (Gd3+) and Tin (Sn4+) Co-doped BiFeO3 Nanoparticles as New Solar Light Active Photocatalyst,†Sci. Rep., vol. 7, no. August 2016, pp. 1–12, 2017, doi: 10.1038/srep42493.
- D. R. Patil et al., “Studies on electrical and dielectric properties of Ba1−xSrxTiO3,†Mater. Chem. Phys., vol. 104, no. 2–3, pp. 254–257, 2007, doi: 10.1016/j.matchemphys.2007.02.027.
References
C. Sunandar, PENUMBUHAN FILM BaxSr1-xTiO3 DAN BaFeSrTiO3 DAN OBSERVASI SIFAT FERROELEKTRIKNYA. 2006.
E. Aksel, “Structure and Properties of Sodium Bismuth Titanate Ferroelectric Ceramics,†Mater. Sci. Eng., vol. Ph.D., p. 204, 2012, [Online]. Available: http://ufdc.ufl.edu/UFE0043928/00001.
RichaRd J. d. Tilley, Perovskites Structure–Property Relationships, First., no. c. Cardiff University, UK: SPi Global, Pondicherry, india, 2016.
A. Abdalla, S. Hossain, P. Petra, and A. Azad, “Effect of Zr addition on structure and electrical properties of SmFeO3 prepared by solid state reaction method,†Process. Appl. Ceram., vol. 11, no. 4, pp. 275–281, 2018, doi: 10.2298/pac1704275a.
W. Fan, Z. Sun, J. Wang, J. Zhou, K. Wu, and Y. Cheng, “A new family of Ce-doped SmFeO3 perovskite for application in symmetrical solid oxide fuel cells,†J. Power Sources, vol. 312, pp. 223–233, 2016, doi: 10.1016/j.jpowsour.2016.02.069.
S. Phokha, S. Hunpratup, S. Pinitsoontorn, and B. Putasaeng, “Structure , magnetic , and dielectric properties of Ti-doped LaFeO 3 ceramics synthesized by polymer pyrolysis method,†Mater. Res. Bull., vol. 67, pp. 118–125, 2015, doi: 10.1016/j.materresbull.2015.03.008.
A. Mitra, A. S. Mahapatra, A. Mallick, A. Shaw, M. Ghosh, and P. K. Chakrabarti, “Simultaneous enhancement of magnetic and ferroelectric properties of LaFeO 3 by co-doping with Dy 3+ and Ti 4+,†J. Alloys Compd., vol. 726, pp. 1195–1204, 2017, doi: 10.1016/j.jallcom.2017.08.074.
A. Benali, M. Bejar, E. Dhahri, M. Sajieddine, M. P. F. Graça, and M. A. Valente, “Magnetic, Raman and Mössbauer properties of double-doping LaFeO3 perovskite oxides,†Mater. Chem. Phys., vol. 149, no. January, pp. 467–472, 2015, doi: 10.1016/j.matchemphys.2014.10.047.
A. Kaur, L. Singh, and K. Asokan, “Electrical relaxation and conduction mechanisms in iron doped barium strontium titanate,†Ceram. Int., vol. 44, no. 4, pp. 3751–3759, 2018, doi: 10.1016/j.ceramint.2017.11.158.
B. K. F. N. O, S. Dash, R. N. P. Choudhary, P. R. Das, and A. Kumar, “Structural , dielectric , and multiferroic properties of,†vol. 744, no. December 2014, pp. 738–744, 2015, doi: 10.1139/CJP-2014-0025.
S. . Khetre, H. . Jadhav, P. . Jagadale, S. . Kulal, and S. . Bamane, “Studies on electrical and dielectric properties of LaFeO 3,†Pelagia Res. Libr., vol. 2, no. 4, pp. 503–511, 2011.
S. Irfan et al., “The Gadolinium (Gd3+) and Tin (Sn4+) Co-doped BiFeO3 Nanoparticles as New Solar Light Active Photocatalyst,†Sci. Rep., vol. 7, no. August 2016, pp. 1–12, 2017, doi: 10.1038/srep42493.
D. R. Patil et al., “Studies on electrical and dielectric properties of Ba1−xSrxTiO3,†Mater. Chem. Phys., vol. 104, no. 2–3, pp. 254–257, 2007, doi: 10.1016/j.matchemphys.2007.02.027.