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PENGARUH SUHU ANNEALING TERHADAP STRUKTUR MIKRO DAN SIFAT OPTIK LAPISAN BISMUTH FERRITE (BIFEO3) Iriani, Yofentina; Megasari, Novinda Hary; Nurosyid, Fahru
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 9, No 01 (2019) : IJAP Volume 9 ISSUE 01 YEAR 2019
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v9i01.33262

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh suhu annealing terhadap struktur mikro dan sifat optik lapisan Bismuth Ferrite (BiFeO3). Lapisan BiFeO3 telah berhasil berhasil terdeposisi di atas substrat quartz menggunakan metode Chemical Solution Deposition (CSD). Struktur mikro dikarakterisasi menggunakan XRD dan sifat optik dikarakterisasi menggunakan spektrofotometer UV-Vis. Variasi suhu annealing yang dilakukan yaitu 550oC, 600oC, dan 650oC. Suhu annealing mempengaruhi struktur mikro yaitu ukuran kristal, tingkat kekristalan, parameter kisi serta mempengaruhi sifat optik yaitu absorbansi dan energi gap lapisan BiFeO3. Semakin tinggi suhu annealing maka ukuran kristal, tingkat kekristalan, dan parameter kisi meningkat. Puncak absorbansi mengalami penurunan seiring dengan bertambahnya suhu annealing. Suhu annealing mempengaruhi energi gap lapisan BiFeO3. Energi gap paling rendah yaitu pada suhu annealing 650ºC sebesar (2,45 ± 0,02) eV.
Penumbuhan Lapisan Tipis Cooper Phthalocyanine (CuPc) Sebagai Bahan Dasar Sel Surya Organik Nurosyid, Fahru; Kusumandari, Kusumandari
Jurnal Natur Indonesia Vol 12, No 2 (2010)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (516.967 KB) | DOI: 10.31258/jnat.12.2.186-190

Abstract

Have been conducted a thin film plant of CuPc (Copper Phthalocyanine) and CuPc/Ag (Copper Phthalocyanine/Argentum) at substrat ITO (Indium Tin Oxide) with evaporation method. Coat plant attenuate this use variation ofmass that equal to 50 mg, 100 mg, and 150 mg, with current deposition equal to 40 Ampere. Characterization ofCuPc thin film use Scanning Electron Microscopy (SEM) to know the thickness of the thin film, UV - VisibleSpectrophotometer to know absorbance value of CuPc thin film at wavelength of visible light, and measurement ofvoltage current by two point probe method to know the voltage current characteristics from the thin film in the darksituation and under illumination situation. From result of SEM characterization show the thickness valueprogressively along increase of CuPc materials mass. For the each deposition mass obtained thickness value(0,46 ± 0,01) until (0,92 ± 0,02) μm. UV - Visible Spectrophotometer characterization show light absorption by CuPcthin film layer in visible light, absorption happened at wavelength range 520 nm until 780 nm. From the current -voltage measurement at dark and under illumination situation obtained a current value progressively increasealong its mass increase, but decrease from illuminated to darkness.
Performance of natural chlorophyll Amaranthus and Carica Papaya dye on TiO2 coating in the making of dye sensitized solar cell (DSSC) through the spin coating method Pote, Fernince Ina; Supriyanto, Agus; Nurosyid, Fahru; Kurniawan, Deni
Journal of Physics: Theories and Applications Vol 3, No 2 (2019): Journal of Physics: Theories and Applications
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (934.466 KB) | DOI: 10.20961/jphystheor-appl.v3i2.38292

Abstract

The natural dye extracted from Amaranthus dye and Carica Papaya dye which has been prepared in ethanol solution as a sensitizer on DSSC. The Spin coating method is used so that the deposition on TiO2 gets a homogeneous thin layer on the active area of the FTO substrate. The dye solution was tested for characterization using the Elkahfi I-V Meter and UV-Vis 1601 while the FTO structure substrate that had been prepared as a sandwich was tested using Keithley I-V type 2602A. The result of absorbance of dye is at a wavelength of 400 nm - 800 nm and there is also a shift in wavelength and peak absorption of the dye. The greatest efficiency was obtained from chlorophyll amaranthus which is 0.730% while chlorophyll Carica papaya obtained an efficiency of 0.432%. In the combination of Amaranthus dye and Carica papaya dye, the efficiency was 0.526%. High efficiency on TiO2 electrodes shows good performance on Dye-sensitized solar cells.
Penumbuhan Lapisan Tipis Barium Titanat (BaTiO3) menggunakan Metode Sol-Gel dengan Variasi Mol Setyadi, Ayu Uswatu Lissa Sapta; Iriani, Yofentina; Nurosyid, Fahru
Prosiding SNFA (Seminar Nasional Fisika dan Aplikasinya) 2017: Prosiding SNFA (Seminar Nasional Fisika dan Aplikasinya) 2017
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (783.095 KB) | DOI: 10.20961/prosidingsnfa.v2i0.16360

Abstract

Abstract: Preparation of Barium Titanate thin film (BaTiO3) has been done on Quartz substrate using sol gel method with spin coating technique. A thin film BaTiO3 wase made with a mole variation of 0.4 mol and 0.8 mol at a rotation speed of 3000 rpm. The samples were annealed at 400 ° C with 30 minutes stand-up time and at 900 ° C with 2 hours stand-up time and a heating rate of 5 ° C per minute. Characterization of optical properties samples was performed using UV-Vis spectrometers and characterization of microstructure samples using X-Ray Diffraction (XRD). The particle size was calculated by Scherer's formula. Based on the results of the analysis it was found that mole variation of the solution influenced the absorbance value, intensity, crystality level and BaTiO3 thin film particle size. The greater mole of BaTiO3 solution the higher then absorbance value. The fewer then number of layers the greater then diffraction peak intensity. More number of layers the greater the level of crystallinity and particle size. Abstrak: Pembuatan lapisan tipis Barium Titanat (BaTiO3) telah dilakukan  diatas substrat Quartz menggunakan metode sol gel dengan teknik spin coating. Lapisan tipis BaTiO3 dibuat dengan variasi mol  0.4 mol dan  0.8 mol pada kecepatan putar 3000 rpm. Sampel diannealing  pada suhu 400oC dengan waktu tahan 30 menit  dan pada suhu 900oC dengan waktu tahan 2 jam dan kenaikan suhunya 5oC per menit. Karakterisasi sifat optik sampel dilakukan  menggunakan spektrometer UV-Vis dan karakterisasi struktrur mikro sampel menggunakan X-Ray Diffraction (XRD).Ukuran partikel dihitung dengan formula Scherer. Berdasarkan hasil analisis didapat bahwa variasi mol larutan mempengaruhi  mempengaruhi nilai absorbansi, intensitas, tingkat kekristalan dan ukuran partikel lapisan tipis BaTiO3. Semakin besar mol larutan BaTiO3 maka semakin tinggi nilai absorbansinya. Semakin sedikit jumlah lapisan maka intensitas puncak difraksi semakin besar. Semakin banyak jumlah lapisan maka semakin besar pula tingkat kekristalan dan ukuran partikel.
ANALYSIS OF STUDENTS CRITICAL THINKING ABILITY IN SOLVING SCIENTIFIC LITERACY BASED ON METACOGNITION ABILITY Pamungkas, Zakaria Sandy; Aminah, Nonoh Siti; Nurosyid, Fahru
EDUSAINS VOL 10, NO 2 (2018): EDUSAINS
Publisher : Faculty of Education and Teacher Training, UIN (State Islamic University) Syarif Hidayatul

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (394.265 KB) | DOI: 10.15408/es.v10i2.7932

Abstract

ANALISIS KEMAMPUAN BERPIKIR KRITIS SISWA DALAM MENYELESAIKAN SOAL LITERASI SAINS BERDASARKAN TINGKAT KEMAMPUAN METAKOGNISIAbstractThe purpose of this study is to describe students critical tninking skill in solving scientific literacy based on metacognition ability. This research is descriptive research. The subject of this research is 99 students of grade XI in SMA Batik 2 Surakarta. Data collection methods used are test methods and questionnaires. Data analysis techniques use quantitative descriptive analysis. The results showed that the achievement of scientific literacy in science as a body of knowledge, science as a way of thinking, science a way of investigating, science as interaction between technology and society less than 50%. This is because the students' critical thinking skill in the assessment, inference and strategy in solving scientific literacy problem is still low that is below 20%. The low ability of critical thinking due to the students' metacognition level is still low, 84% of students are at the metacognition ability level on tacit use and awareness use and 16% of students on the strategic use level and no students on reflective use level.AbstrakPenelitian ini bertujuan untuk mendeskripsikan kemampuan berpikir kritis siswa dalam menyelesaikan soal literasi sains berdasarkan tingkat kemampuan metakognisi. Penelitian ini termasuk penelitian deskriptif. Subjek penelitian ini adalah 99 siswa kelas XI SMA Batik 2 Surakarta. Metode pengumpulan data yang digunakan adalah metode tes dan angket. Teknik analisis data mengunakan analisis deskriptif kuantitatif. Hasil penelitian menunjukkan bahwa ketercapaian literasi sains pada kategori science as a body of knowledge, science as a way of thinking, science a way of investigating, science as interaction between technology and society tergolong rendah yakni dibawah 50%. Hal ini dikarenakan kemampuan berpikir kritis siswa pada tahapan penilaian, inferensi dan strategi dalam menyelesaikan masalah literasi sains masih rendah yaitu dibawah 20%. Rendahnya kemampuan berpikir kritis dikarenakan tingkatan metakognisi siswa masih rendah yakni 84% siswa berada pada tingkat kemampuan metakognisi pada tacit use dan aware use dan 16% siswa pada tingkatan strategic use dan tidak ada siswa pada tingkatan reflective use. 
Pengaruh Ketebalan Elektroda Kerja TiO2 Transparan terhadap Kinerja Dye Sensitized Solar Cell (DSSC) sebagai Aplikasi Solar Window Dewi, Nadya Aruma; Nurosyid, Fahru; Supriyanto, Agus; Suryana, Risa
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 6, No 02 (2016): IJAP Volume 06 Issue 02 Year 2016
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v6i02.1362

Abstract

 Senditized Dye Solar Cells (DSSC) consist of photoelectrode, dye, electrolyte and counter electrode which is one of the photochemical electric cells. In this article will discuss the influence of the thickness of the electrode on the electrical properties. Electrodes made by screen printing method. Screen by type T-49. TiO2 deposited on the FTO variation of the number of layers to obtain a thickness of 1, 2, 3 and 4. DSSC tested thickness by Screen Electron Microscopy (SEM), absorbance test by UV Visible Lambda 25 and characterization of current and voltage test by Keithley Measurenment 2602A. The test results showed the thickness of the TiO2 electrode thickness (1.5 ± 0.2) μm, (2.9 ± 0.5) μm, (3.5 ± 0.6) μm, and (4.5 ± 0.8 ) μm. Based on the test results absorbance maximum value contained in thickness (4.5 ± 0.8) μm having a dye adsorbed at most and have the highest efficiency  2.41%. 
Fabrikasi dan Karakterisasi Sel Surya Organik Berbasis ITO/CuPc/PTCDI/Ag Nurosyid, Fahru; Kusumandari, Kusumandari
Jurnal Fisika FLUX Vol 6, No 2 (2009): Jurnal Fisika Flux Edisi Agustus 2009
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v6i2.3053

Abstract

Has been fabricated and characterized an organic solar cell based onCopper phthalocyanine (CuPc) and 3, 4, 9, 10 perylenetetracarboxylic diimide(PTCDI). CuPc and PTCDI layer sandwiched between two different electrode ofITO and Ag by vacuum evaporation so solar cell structure isITO/CuPc/PTCDI/Ag. UV-Vis spectra of ITO/CuPc/PTCDI/Ag is 400 nm to 760nm which is superposition of CuPc layer and PTCDI layer. From characterizationof current density – voltage (J-V) show that current under illumination higher thandark current. The power conversion efficiency of 0.40 % under illumination 100mW/cm2 are obtained with fill factor 0.33.
Absorpsi dan Responsivitas Larutan Porphyrin Alam Hasil Isolasi dari Spirulina sebagai Bahan Material Photonics Supriyanto, Agus; Kusumandari, Kusumandari; Nurosyid, Fahru; Erlina, Antik
Jurnal Fisika FLUX Vol 5, No 2 (2008): Jurnal Fisika Flux Edisi Agustus 2008
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v5i2.3065

Abstract

Telah dilakukan pengujian karakteristik absorpsi larutan porphyrin dan responsivitas cahaya. Larutan senyawa molekul porphyrin diisolasi dari mikroalgae spirulina. Pengujian fotokonduktivitas dalam kondisi gelap diperoleh sekitar 0,9x10-4 ohm-1.cm-1 sedangkan pada kondisi diberi intensitas radiasi 0,5 W.m-2, 10 W.m-2 dan 16 W.m-2 diperoleh fotokonduktivitas sekitar 1,5x10-4 ohm-1 cm-1. Spektrum absorbansi larutan porphyrin mempunyai soret band sekitar 410 nm dan Q-band sekitar 660 nm. Dari hasil perhitungan responsivitas cahaya pada larutan porphyrins dengan panjang gelombang 410 nm dan 660 nm mempunyai tanggapan cahaya yang baik yaitu sekitar 3,92x10-2 ampere/watt dan 5,53x10-2 ampere/watt. Sedangkan pada panjang gelombang lainnya diperoleh sekitar 1,39x10-9 ampere/watt. Hal ini cukup potensial bahwa material porphyrins alam dapat digunakan sebagai material photonics pada devais foto.
Pengaruh Waktu terhadap Efisiensi Dye-Sensitized Solar Cell (DSSC) Ridha Alfidharisti, Sistha; Nurosyid, Fahru; Iriani, Yofentina
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 8, No 1 (2018) : IJAP Volume 8 ISSUE 01 YEAR 2018
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v8i1.14462

Abstract

Penelitian ini mengkaji pengaruh waktu terhadap effisiensi Dye Sensitized Solar Cell (DSSC). Jarak elektroda divariasi sebesar 76 µm dan 114 µm. Karakterisasi sifat listrik menggunakan Keithley I-V meter yang dilakukan selama 21 hari dengan selang 7 hari untuk mengetahui kestabilannya. Karakterisasi I-V dengan selang waktu pengukuran menunjukkan bahwa DSSC dengan jarak elektroda 76 µm stabil hingga hari ke-7 dengan efisiensi 0,0347%. Pada jarak 114 µm stabil hingga hari ke-14 dengan efisiensi 0,0117%.
Pengaruh Komposisi Campuran Antosianin-Klorofil sebagai Fotosensitizer terhadap Efisiensi Dye Sensitized Solar Cell Maya Dwi Fistiani; Fahru Nurosyid; Risa Suryana
Jurnal Fisika dan Aplikasinya Vol 13, No 1 (2017)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (528.717 KB) | DOI: 10.12962/j24604682.v13i1.2132

Abstract

IntisariArtikel ini membahas fabrikasi Dye Sensitized Solar Cell (DSSC) dengan menggunakan campuran dye antosianin dan klorofil sebagai fotosensitizer. Pencampuran dye bertujuan untuk memperlebar daerah serapan dye alami. Antosianin diekstraksi dari kol merah sedangkan klorofil dari daun bayam dengan metode maserasi. Komposisi dye divariasikan dengan perbandingan larutan antosianin:klorofil, yaitu 1:3, 1:1, dan 3:1. Variasi komposisi dilakukan untuk mengetahui pengaruh perubahan serapan dye terhadap efisiensi DSSC. Karakterisasi sifat optik menggunakan spektrofotometer UV-Vis, sedangkan karakterisasi sifat listrik denganI-V meter. Hasil karakterisasi menunjukkanbahwa pada perbandingan 1:3memiliki absorbansi tertinggi pada rentang panjang gelombang 400 nm hingga 450 nm dan efisiensi sebesar0,15%.ABSTRACTThis article is about fabrication of Dye Sensitized Solar Cell (DSSC) using mixture of anthocyanin and chlorophyllas fotosensitizer. Mixing dye aims to widen the absorbance area of natural dye.Anthocyanin is extracted from red cabbage andchlorophyll from spinach leaves with maseration methode. Mixture composition of dye anthocyanin:chlorophyll varying at 1:3, 1:1, and 3:1. Composition variation is performed to determine the effect of absorbance change on the efficiency of DSSC. Optic characterization using UV-Vis spectrophotometer and electric characterization using I-V meter. The characterization result showed that rasio 1:3 hasthe highest absorbance at wavelength 400 nm to 450 nm with highest efficiency 0,15%.