Sintesis dan Karakterisasi Film BiFeO3 didadah Barium (II) Asetat (Ba(CH3COO)2).

Abstract

Sintesis film BiFeO3 dengan pendadah Barium (II) Asetat (Ba(CH3COO)2), variasi konsentrasi pendadah yang digunakan 0%; 0,5%; 1%; dan 1,5% diatas substrat Si (100) tipe-p dibuat dengan metode chemical solution deposition (CSD) dengan teknik spin coating telah berhasil dilakukan. Proses annealing dimulai dari suhu ruang kemudian dinaikan hingga suhu annealing 850oC dengan kenaikan suhu 1.67oC/menit dan ditahan konstan selama 8 jam pada suhu annealing tersebut. Selanjtnya dilakukan proses pendinginan sampai kembali pada suhu kamar selama 12 jam. Menghitung ketebalan film yang dihasilkan dengan menggunakan metode volumetrik, ketebalan yang dihasilkan yaitu 1,667 μm, 1,9047 μm, 2,1164 μm, dan 2,3809 μm. Analisis data XRD dengan metode Cramer-Cohen menghasilkan nilai parameter kisi a=b sebesar 5,4247 Å, 5,4326 Å, 5,4993 Å, dan 5,5691 Å. Serta parameter kisi c yaitu 14,1241 Å, 14,1533 Å, 14,3525 Å, dan 14,5720 Å, dengan struktur kristal heksagonal. Nilai energi bandgap yang dihasilkan dari analisis dengan fungsi Kubelka Munk untuk indirect transition berada pada kisaran 2,6246 – 2,5751 eV.

Synthesis of BiFeO3 film with Barium (II) Acetate (Ba(CH3COO)2), the concentration variation of the solvent used are 0%; 0.5%; 1%; and 1.5% above the p-type Si (100) substrate that are made by chemical solution deposition (CSD) method with spin coating technique has been successfully carried out. The annealing process is started from room temperature, it is increased to 850oC of annealing temperature with 1.67oC/minutes of temperature increase. It is constantly held for 8 hours at the annealing temperature. After that, the cooling process is carried out until the temperature returns to room temperature for 12 hours. The results of thickness film are calculated using the volumetric method, including 1.667 m, 1.9047 m, 2.1164 m, and 2.3809 m. The results of XRD data analysis is lattice parameter values a=b, which is using the Cramer-Cohen method; they are 5.4247, 5.4326, 5.4993, and 5.5691. In addition, for lattice parameters c with a hexagonal crystal structure are 14.1241, 14.1533, 14.3525, and 14.5720. The results of band gap energy values, which is using the Kubelka Munk function for indirect transitions, ranged from 2.6246 – 2.5751 eV.