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All Journal Jurnal Bahan Alam Terbarukan Kappa Journal
Hidayatulloh, Alpiana
Semarang State University
Astronomy Materials Science & Nanotechnology Physics Other

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THE EFFICIENCY OF DYE-SENSITIZED SOLAR CELL (DSSC) IMPROVEMENT AS A LIGHT PARTY TiO2-NANO PARTICLE WITH EXTRACT PIGMENT MANGOSTANA PEEL (Garcinia Mangostana) WITH VARIOUS SOLVENTS Hardani, Hardani; Hidayatulloh, Alpiana; A., Lily Maesary
Jurnal Bahan Alam Terbarukan Vol 7, No 2 (2018): December 2018 [Nationally Accredited]
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jbat.v7i2.14488

Abstract

The dye-sensitized solar cell (DSSC) is one of the photochemical electrical cells consisting of a photoelectrode, dye, electrolyte, and counter electrode. The purpose of using dyes in the DSSC is to extend the absorption spectrum to visible light because visible light has about 96% energy from sunlight. This article presents some experimental data on the nature of absorbance and the conductivity of natural dyes extracted from the plant as an application in the DSSC. Absorbance test using Spectrophotometer UV Visible 1601 PC and electrical properties test using Elkahfi 100 / Meter I-V. DSSC fabrication has been done using dye extract of mangosteen skin pigment (Garcinia mangostana) with a variety of coating technique of Spin Coating and Slip Casting. The results show that natural dyes from natural material extraction have an absorbance spectrum of 380-520 nm range and the greatest conductivity is owned by mangosteen fruit skin pigment (Garcinia mangostana). From the results of the test using AM Simulator 1.5G (100 mW / cm2) diesel simulator, it was found that the volume of TiO2 precursors affected the performance of DSSC solar cells and the overall conversion efficiency was 0.084% for the mangosteen skin dye by slip casting technique and 0.092% for the mangosteen skin dye by spin coating technique.
Peningkatan Metakognitif Mahasiswa Fisika Pada Mata Kuliah Fisika Kuantum Hidayatulloh, Alpiana; Hr, Baiq Malikah; Hardani, Hardani
Kappa Journal Vol 2, No 1 (2018): KAPPA JOURNAL
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (525.063 KB) | DOI: 10.29408/kpj.v2i1.757

Abstract

Penelitian ini dilakukan di Universitas Hamzanwadi pada fakultas keguruan dan ilmu pendidikan program studi pendidikan fisika. Penelitian ini bertujuan untuk melihat lebih banyak metakognitif dari siswa pada kuantum, untuk melihat tidak ada tindakan yang dilakukan untuk melihat dan melihat berapa banyak siswa yang menggunakan data tersebut sebagai siswa angket metakognitif. Analisis data yang digunakan untuk angket dan angket hanya menggunakan nilai rata-rata dari hasil evaluasi dan biaya angket siswa secara keseluruhan. Dari hasil tes dapat disimpulkan bahwa metakognitif dari hasil evaluasi 75%.
Co-Authors A., Lily Maesary Hardani, H Hr, Baiq Malikah