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All Journal Jurnal Sains dan Teknologi Journal of Teaching and Learning Physics Jurnal Riset Fisika Edukasi dan Sains PALAPA: Jurnal Studi Keislaman dan Ilmu Pendidikan Jurnal Penelitian Pendidikan IPA (JPPIPA) MANAZHIM Islamika: Jurnal Keislaman dan Ilmu Pendidikan Jurnal Penelitian dan Pengkajian Ilmu Pendidikan: e-Saintika Jurnal Pendidikan dan Konseling Lensa : Jurnal Kependidikan Fisika Sainstek : Jurnal Sains dan Teknologi Jurnal Pendidikan dan Kewirausahaan al-fikrah: Jurnal Manajemen Pendidikan Lensa: Jurnal Kependidikan Fisika
Marjoni Imamora Ali Umar
Universitas Islam Negeri Mahmud Yunus Batusangkar, Indonesia
Religion Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Other

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Journal : Lensa : Jurnal Kependidikan Fisika

 1 
SYNTHESIS AND CHARACTERIZATION OF TIO2 SEMICONDUCTOR DOPED BY AGNO3 AND THEIR APPLICATION AS PHOTOANODE IN DYE-SENSITIZED SOLAR CELLS Ali Umar, Marjoni Imamora; Faizil, Nanda; Umar, Akrajas Ali; Saad, Siti Khatijah Md
Lensa: Jurnal Kependidikan Fisika Vol 8, No 1: June 2020 (in Press)
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/j-lkf.v8i1.2728

Abstract

The use of Titanium dioxide (TiO2) semiconductors in Dye-Sensitized Solar Cells (DSSC) devices have been extensively studied and synthesized with various techniques to obtain optimal performance. The TiO2 semiconductors with optimal performance are influenced by the growth method, the time of growth, the shape of the microstructure, and the optical properties. In this study, it was reported about the effect of silver nanoparticles (AgNO3) doping onto TiO2 semiconductors on their microstructure, reflectance, and efficiency of the DSSC device. The synthesis of TiO2 was carried out using liquid phase deposition (LPD) and immersed into an AgNO3 solution with a variation of time namely 0.5 h, 1 h, 2 h, 4 h, and 6 h. The entire TiO2 + AgNO3 sample, then used as a photoanode on DSSC with plastisol as a counter electrode. Characterization of microstructure, reflectance, and DSSC performance was carried out by using field emission scanning electron microscopy (FESEM), Uv-Vis Spectrophotometer, and Gamry Instrument, respectively. The FESEM results show that AgNO3 has successfully grown on the ITO substrate in a spherical shape with an average particle diameter ranging from 1.52-2.29 ?m. From observations using the Uv-Vis Spectrophotometer, obtained the energy band gap values ranged from 0.22 to 2.27 eV. The best results of DSSC device efficiency, with TiO2+AgNO3/Dye/Plastisol structure, have resulted in the Voc of 0.694 V, current density (Jsc) of 0,943 mA/cm2and fill factor (FF) of 43,50% which is obtained at sample 1.
GRAPHENE-AU FILM SYNTHESIZED FROM GRO IN AU-AQUAEUS SOLUTION AS COUNTER ELECTRODE FOR DSSC APPLICATION Umar, Marjoni Imamora Ali
Lensa: Jurnal Kependidikan Fisika Vol 7, No 2: December 2019
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/j-lkf.v7i2.2644

Abstract

The study on the optical, electrical properties of multilayer graphene (MLG) obtained by thermal-reduction of graphene oxide (GrO) which was synthesized directly by mixing graphite oxide (GO) flake in 0.005, 0.01, 0.015, and 0.02 M of Au aqueous solution has been successfully performed. The resultant  GrO was subjected to an annealing temperature of 200°C, 400°C, 500°C for 1h to obtain MLG, and G-Au2x, G-Au4x, and G-Au5x (x=.0.005, 0.01, 0.015, and 0.02). The resultant samples were then characterized using FESEM, UV-VIS, four-point probe measurements to study its morphology, optical, and electrical properties. The transmission G-Au increase and its sheet resistant decrease as an increase of annealing temperature. Besides, the annealing treatment was then achieved of its microstructure which is expected may be used as a counter electrode in solar cell applications. The best DSSC devices with Quartz/FTO/ZnO Nanorods/Dye/G-Au50.01/Quartz structures have resulted in current-density, Voc, and solar cell performance of 0.1 mA/cm2, 0.42 V, and 0.01%, respectively.
Co-Authors Akrajas Ali Umar Akrajas Ali Umar Akrajas Ali Umar Almasri Almasri Dany Kurniawan Demina Demina Demina Demina Elvy Rahmi Elvy Rahmi Mawarnis Faizil, Nanda Fardilla Deviyanda Fitri Ningsih, Fitri Hasan Zaini Hasan Zaini Khairat, Annisaul Mardiani Mardiani Muhammad Fazis Muhammad Fazis Nanda Faizil Novia Lizelwati Novia Lizelwati R, Setia Erlila Rika Agusti Roby Setia Pramana Ronoili, Ronoili Saad, Siti Khatijah Md Siti Khatijah Md Saad Sri Maiyena Sri Maiyena Suswati Hendriani Wiwit Vianora Zulhendri Zulhendri Zulhendri Zulhendri