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All Journal Jurnal Fisika Indonesia PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL)
Rahmi Dewi
Jurusan Fisika Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Riau Kampus Bina Widya Pekanbaru, 28293, Indonesia
Astronomy Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Physics Other

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Karakterisasi Mikrostruktur Material Feroelektrik Ba0.3Sr0,7TiO3 (BST) dengan variasi suhu annealing Rahmi Dewi; Krisman Krisman
Jurnal Fisika Indonesia Vol 21, No 1 (2017)
Publisher : Department of Physics Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1514.316 KB) | DOI: 10.22146/jfi.38655

Abstract

Telah dilakukan pembuatan sampel dari bahan Barium Strontium Titanat (BST) dengan komposisi Ba0,3Sr0,7Tio3 dengan  menggunakan metode sol gel dan di annealing  pada suhu 600oC,650oC dan 700oC.  Ukuran butira dan  ketebalan sampel dikarakterisasi menggunakan Field Emission Scanning Microscopy (FESEM). Ukuran butiran meningkat dengan meningkatnya suhu annealing. Nilai rata-rata ukuran butiran dari temperatur 600oC, 650oC dan 700oC adalah : 21,20 nm; 22,30 nm dan 26.8 nm. Nilai ketebalan sampel masing-masing adalah 31,28 nm;37,5nm dan 39,08nm.   
PENENTUAN CELAH PITA ENERGI FILM TIPIS BARIUM STRONSIUM TITANAT (Ba1-xSrxTiO3) UNTUK x= 0,4 ; 0,5 DAN 0,6 Rahmi Dewi; Krisman Krisman; Taufiq Hidayat
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 5 (2016): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2016
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (596.018 KB) | DOI: 10.21009/0305020220

Abstract

Barium Strontium Titanate (BST) thin film on the substrate glass was successfully fabricated by using sol-gel method. The purpose of this research is to obtain optical energy band gap value by adopting Tauc plot method with various composition and temperature. Obtaining of such information could be through identifying the degree of absorbance, degree of transmittance, the extent of refractive index, the usage of thin film and its quantified coefficients. Subsequently, the optical properties of thin film are characterized by using Ultraviolet-Visible Spectrophotometer with a thin film of Ba1-xSrxTiO3 subjected to temperatures of 650ºC. Upon subjected to temperature stated above, the wide energy band gap optical thin film Ba0,6Sr0,4TiO3 is in the range of 2.0 eV for Ba0,5Sr0,5TiO3 is in the range of 1.55 eV and for Ba0,4Sr0,6TiO3 is in the range of 2.0 eV. Keywords: Thin Film BST, Composition, Temperature, Energy Band Gap.
Co-Authors Krisman Krisman Taufiq Hidayat