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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA)
Aris Doyan
Physics Education, Faculty of Teacher Training and Education, University of Mataram, Lombok, West Nusa Tenggara, Indonesia.
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Physics

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Synthesis of SnO2 Thin Coatings by Indium and Aluminum Mixed Doping using the Sol-Gel Spin-Coating Technique Haris Munandar; Aris Doyan; Susilawati Susilawati
Jurnal Penelitian Pendidikan IPA Vol. 6 No. 2 (2020): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v6i2.391

Abstract

This research succeeded in creating a thin layer of SnO2 and SnO2: In+Al through a synthesis process with the sol-gel spin-coating technique on a glass substrate. The manufacture of this thin layer uses the basic material SnCl2.2H2O, and the doping material InCl3.4H2O and AlCl3. This thin layer is made with variations in doping concentration, number of layers, and heating temperature. The results of the synthesis of SnO2: In+Al films show that the thin film formed is more transparent when the doping concentration and the number of layers is increased. Meanwhile, the thin layer that forms is increasingly not transparent when heated at higher temperatures
Synthesis of M-Hexaferrites Material Based on Natural Iron Sand with Metal Co Doping Using the Coprecipitation Method Susilawati Susilawati; Aris Doyan; Lalu Muliyadi
Jurnal Penelitian Pendidikan IPA Vol. 7 No. 1 (2021): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v7i1.461

Abstract

The synthesis of M-hexaferrite with metal doping Co (BaFe12-3xCoxO19 ) based on natural iron sand at Ketapang beach in Pringgabaya Subdistrict, East Lombok using the coprecipitation method has been successful. The basic ingredients used in this study were natural iron sand and BariumCarbonate (BaCO3) powder, while the doping material used was Cobalt (II) Chloride Hexahydrate (CoCl2.6H2O) powder with a variety of mole fraction (X = 0.0, 0.2, 0.4, 0.6, 0.8 and 1.0). The solvent uses 37% hydrochloric acid (HCl), 25% NH4OH solution, and distilled water. The sample formed was then calcined at 200 0C, 400 0C, 600 0C, 800 0C and 1000 0C. The resulting sample shows that there is an effect of Co doping and calcination temperature in the formation of barium M-hexaferrite. The higher the mole fraction of Co doping ions and the calcination temperature, the darker the color of the powder produced. 
The Effectiveness of Teaching Materials for the Introductory Core Physics Course Based on the Use of PhET to Improve the Activity and Learning Outcomes of Physics Education Students Susilawati; Aris Doyan; Lalu Muliyadi
Jurnal Penelitian Pendidikan IPA Vol 9 No 12 (2023): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i12.6587

Abstract

This study aims to examine the effectiveness of teaching materials for the introductory core physics course based on the use of PhET to improve the activity and learning outcomes of physics education students. The device was developed using a 4D model which includes define, design, develop and disseminate. The sample of this research was all 20 undergraduate students taking the core physics course. The data obtained in this study are in the form of activity data and student learning outcomes data. Student activity data obtained was then analyzed and adjusted to the value of activity criteria, while the increase in student learning out-comes was analyzed using the N-gain test. The results showed that the value of student activity ranged from 0.8 to 0.96 so that it was categorized as active and very active. The N-gain analysis shows that student learning outcomes have in-creased with a value of 0.73 to 0.77 and are in the high category. This means that the teaching materials for introductory core physics courses based on the use of PhET are effective in increasing the activities and learning outcomes of physics education students
Co-Authors Haris Munandar Muliyadi, Lalu Susilawati Susilawati -