Physics – Condensed Matter
Scientific paper
2001-07-11
Physics
Condensed Matter
4 pages, 5 figures, Indonesia German Conference, Bandung July 11-13, 2001, Indonesia
Scientific paper
Bi4Ti3O12 (BIT) has been considered as material for UV detector since it has optical band gap of about 3.5 eV. Unlike the most used material for this purpose, such as GaN and AlN, BIT is a ferroelectric oxide material. It has shown good detection properties in the UV regions. We have developed a Pulsed Laser Ablation Deposition (PLAD) method for preparation of BIT thin films. The BIT films were grown on Si/SiO2/Pt(111) substrates and these films exhibit good crystalline properties with preferential orientation in c-axis. A structure of Al/Bi4Ti3O12/Pt(111)/Si(100) was fabricated for measurement of spectral distribution of the voltage responsivity. The maximum voltage responsivity and the spectral distribution significantly depend on the films preparations and treatments.
Arifin Pepen
Barmawi M.
Darsikin
Fuad A.
Irzaman
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