کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9809946 1517720 2005 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Correlation between dielectric properties and strain in Pb0.5 Sr0.5TiO3 thin films prepared by using the sol-gel method
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Correlation between dielectric properties and strain in Pb0.5 Sr0.5TiO3 thin films prepared by using the sol-gel method
چکیده انگلیسی
Pb0.5Sr0.5TiO3 (PST) thin films were fabricated by the alkoxide-based sol-gel process using spin-coating method on Pt/Ti/SiO2/Si substrate. The PST films annealed from 500 °C to 650 °C for 1 h show a perovskite phase and dense microstructure with a smooth surface. The grain size and dielectric constant of PST films increase with the increase in annealing temperature, which reduces the SiO2 equivalent thickness of the PST film. The crystallinity or internal strain in the PST thin films analyzed from the diffraction-peak widths correlates well with the decrease in the dielectric losses. The dielectric constants and dielectric loss (%) of the PST films annealed at 650 °C (teq=0.89 nm) were 549 and 0.21%, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 190, Issues 2–3, 21 January 2005, Pages 190-194
نویسندگان
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