کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1688481 | 1518960 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Consequence of source material on the surface properties of nebulizer spray coated cerium oxide thin films
ترجمه فارسی عنوان
نتیجه مواد منبع بر روی خواص سطحی از فیلم های نازک اکسید سریم پوشش داده شده با اسپری ناپلایزر
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
چکیده انگلیسی
Cerium oxide thin films are coated on glass substrates by nebulizing spray pyrolysis technique using cerium nitrate and cerium chloride as a source material. Their crystallographic structures, surface morphology, optical properties and I-V characteristics are analyzed as a function of substrate temperature (300-500 °C). XRD is used to estimate the crystallographic texture, crystalline size, strain and lattice constant. All films exhibit a cubic fluorite structure with different preferred orientation depending on the preparation conditions. All the films exhibit dense, smooth and crack-free spherical nanostructures with some uneven surfaces in the range 400 nm. PL analysis indicates the presence of indigo and blue emission in the visible region centered at â¼425 and â¼467 nm respectively. UV-ViS spectra revealed that the films are transparent (70%) in the visible region. Optical parameters like refractive index, optical conductivity and band gap are calculated for different Ts. XPS analysis revealed the existence of Ce, O and C in the films. It demonstrates the prevalent occurrence of Ce4+ rather than Ce3+. I-V characteristics confirm the semiconducting behavior of cerium oxide thin films due to its linear response to applied voltage.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vacuum - Volume 109, November 2014, Pages 94-101
Journal: Vacuum - Volume 109, November 2014, Pages 94-101
نویسندگان
R. Suresh, V. Ponnuswamy, R. Mariappan,