B-spline Regression Modeling of Strontium Titanate Data in Transmittance Properties with Rutenium Oxide Doping Concentration

  • Asriyanti Ali Departement of Statistics, Faculty of Mathematics and Natural Sciences (FMIPA), IPB University, Bogor 16680, Indonesia
  • Muhammad Nur Aidi Departement of Statistics, Faculty of Mathematics and Natural Sciences (FMIPA), IPB University, Bogor 16680, Indonesia
  • Indahwati Indahwati Departement of Statistics, Faculty of Mathematics and Natural Sciences (FMIPA), IPB University, Bogor 16680, Indonesia
  • Irzaman Irzaman Departement of Physics, Faculty of Mathematics and Natural Sciences (FMIPA), IPB University, Bogor 16680, Indonesia
Keywords: B-spline regression, RuO2, SrTiO3, Transmittance.

Abstract

Strontium titanate (SrTiO3) doped with ruthenium oxide (RuO2) 6% was characterized by the transmittance properties using UV-Vis (Ultraviolet-Visible) spectrophotometer. The application of transmittance properties to electronic devices has different wavelengths. Therefore the wavelength influence of transmittance will be segmented. The model that is feasible to use in this aspect is spline regression. This study used b-spline regression to measure each wavelength segment to the percentage of transmittance strontium titanate materials with various contributions of RuO2. Then it compares the B-spline regression model on strontium titanate with various comparisons of RuO2. Based on the estimated yield curve obtained for SrTiO3 material, it can be recommended the maximum percentage of transmittance from a part of the regression curve obtained at wavelength of 755,067 nm. While the minimum percentage of transmittance reached at wavelength of 435,787 nm. In SrTiO3+RuO2 2%, the rising wavelength of one nm will cause each segmentation to rise by 4.2%, 8.2% and 3.9% respectively.Then the wavelength fired through the material of SrTiO3+RuO2 4% 432.44 nm up to 438,776 nm when the wave rises by one nm it will cause transmittance displacement of 0.374%. In addition, the percentage increase in segmentation was 0.095%, 0.0578% and 0.0089% respectively. The estimated curve of SrTiO3+RuO2 6% material is the most maximum percentage of transmittance obtained from the calculation of regression curve at 744,935 nm wavelength with percentage transmittance value of 63,015%. While the minimum percentage of transmittance reached at wavelength of 436.755 nm with percentage transmittance value of 37.287%.

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Published
2019-07-24
Section
Articles