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Komunikasi Fisika Indonesia
Published by Universitas Riau
ISSN : 14122960     EISSN : 2579521X     DOI : 10.31258/jkfi
Core Subject : Science, Engineering,
Earth & Planetary Sciences Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Physics
KFI mempublikasikan artikel hasil penelitian dan review pada bidang fisika, namun tidak terbatas, yang meliputi fisika murni, geofisika, plasma, optik dan fotonik, instrumentasi, dan elektronika, dan fisika terapan (aplikasi fisika).
Arjuna Subject : Fisika dan Astronomi - Fisika dan Astronomi (Lain-Lain)
Articles 15 Documents
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Search results for , issue "Vol 15, No 2 (2018)" : 15 Documents clear
ANALISIS KOMPENSASI DISPERSI MENGGUNAKAN PENGUAT RAMAN PADA JARINGAN WDM (WAVELENGTH DIVISION MULTIPLEXING) DALAM KOMUNIKASI SERAT OPTIK Roby Ikhsan; Romi Fadli Syahputra; Saktioto Saktioto
Komunikasi Fisika Indonesia Vol 15, No 2 (2018)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (130.974 KB) | DOI: 10.31258/jkfi.15.2.88-92

Abstract

The discovery of optical fiber cause widespread revolution of communication system. Optical fiber communication has excellency on data transmission speed, security, flexibility, and broadly bandwidth. The applying of WDM network can broaden the bandwidth so that the transmission performance becomes more splendid. Although some factors such as dispersion, attenuation, and scattering can hinder the performance of fiber optic on sending data. Moreover dispersion can wreck data and spread pulse as it travels alongs fiber so that causing interference. There is some methods  of dispersion compensation. In this paper, Fiber Raman Amplifier is used on WDM network to strengthen signal which is sent to detector. This research utilize simulation approachment  with various bandwidth and length fiber. The results show lowest BER value and highest Q-factor at bandwidth frequency of 30 GHz and fiber length of 20 km.
SINTESIS BAHAN PIEZOELEKTRIK xBZT-BCT MENGGUNAKAN METODE MOLTEN SALT DAN KARAKTERISASINYA Helga Dwi Fahyuan; Oky Lidya Kumala; Nasri Mz
Komunikasi Fisika Indonesia Vol 15, No 2 (2018)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (102.009 KB) | DOI: 10.31258/jkfi.15.2.146-150

Abstract

The research of synthesized xBZT-BCT piezoelectric material have been carried out by using molten salt method. Piezoelectric material is a material that can generate electrical voltage when given voltage or mechanical strain. This material has the potential to be a good piezoelectric material. In this study, the method used is molten salt. Molten salt utilizes molten salt to speed up chemical reactions during the heating process. The xBZT-BCT material was synthesized with variations of composition 0.48, 0.5, and 0.52 mol and sintering temperature is 850 ° C. The crystalline structure generated by 0.48BZT-BCT sintering temperature of 850 ° C is tetragonal-rhombohedral., respectively. The Morphotropic Phase Boundary area is present in a composition of 0.5 mol.
STRATEGI PENANGGULANGAN KEBAKARAN PADA LAHAN GAMBUT DENGAN MENGGUNAKAN PENDEKATAN EKO-TEKNOLOGI PADA MASYARAKAT PETANI DI DESA RIMBO PANJANG KECAMATAN TAMBANG KABUPATEN KAMPAR PROVINSI RIAU Saktioto Saktioto; Defrianto Defrianto; Riad Syech; Syahril Syahril; Joko Risanto
Komunikasi Fisika Indonesia Vol 15, No 2 (2018)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (96.87 KB) | DOI: 10.31258/jkfi.15.2.156-159

Abstract

People who care about the environment always reject the use of peat land for large-scale plantation areas, because this can cause an increase in carbon gas and can even cause damage to peat land in Rimbo Panjang Village, Tambang District, Kampar Regency. that there was an event of a land fire which almost hit the residential area in Rimbo Panjang village, Kec. Kampar District Mine on February 24, 2015. That there are complaints from the community in Rimbo Panjang village, Kec. Kampar Regency Mine about environmental conditions or smog. The implementation of Eco-Technology can protect the environment of peatlands to maintain sustainability and avoid fire from peatlands and regulate groundwater management on peatlands.
PENGARUH WAKTU PERENDAMAN TiO2 DALAM LARUTAN EKSTRAK ANTOSIANIN BUNGA ROSELLA PADA KINERJA DYE SENSITIZED SOLAR CELL (DSSC) Rafika Andari; Dona Abrini
Komunikasi Fisika Indonesia Vol 15, No 2 (2018)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (139.419 KB) | DOI: 10.31258/jkfi.15.2.105-111

Abstract

The use of solar panels is still quite expensive in the making, for it needs to be developed solar panels are cheap based DSSC (Dye Sensitized Solar Cell). The use of DSSC is very good developed in Indonesia which is famous for its biological richness. This study used rosella flowers as photosensitizer obtained from the extraction process in the form of maceration for 24 hours. The components used to construct a DSSC outline can be divided into four parts, namely substrate, dye, semiconductor titanium dioxide (TiO2), and electrolyte. In this research the Ti O2 layer was immersed in a solution of rosella flower extract with different time variations, ie 1 hour, 2 hours, and 3 hours. Light sources used are sunlight and 150 watt halogen lamps. It was found that at 3 hours of immersion using the sunlight source was the best result of maximally current (Imax) 0.3 mA, maximum voltage (V) 582,4 mV and its efficiency 0,258%. The results obtained were lower when the DSSC was given a halogen light source, i.e. Maximum current (Imax) 0.08 mA, maximal voltage (Vmax) 125,6 mV and its efficiency 0,167%. The greater the intensity of the light illumination the greater the output power of the DSSC.The use of solar panels is still quite expensive in the making,  for it needs to be developed solar panels are cheap based DSSC (Dye Sensitized Solar Cell). The use of DSSC is very good developed in Indonesia which is famous for its biological richness. This study used rosella flowers as photosensitizer obtained from the extraction process in the form of maceration for 24 hours. The components used to construct a DSSC outline can be divided into four parts, namely substrate, dye, semiconductor titanium dioxide (TiO2), and electrolyte. In this research the TiO2 layer was immersed in a solution of rosella flower extract with different time variations, ie 1 hour, 2 hours, and 3 hours. Light sources used are sunlight and 150 watt halogen lamps. It was found that at 3 hours of immersion using the sunlight source was the best result of maximally current (Imax) 0.3 mA, maximum voltage (Vmax) 582,4 mV and its efficiency 0,258%. The results obtained were lower when the DSSC was given a halogen light source, i.e. Maximum current (Imax) 0.08 mA, maximal voltage (Vmax) 125,6 mV and its efficiency 0,167%. The greater the intensity of the light illumination the greater the output power of the DSSC.
MORFOLOGI DAN EFISIENSI SEL SURYA FOTOELEKTROKIMIA BERBASIS NANOSTRUKTUR ZnO DILAPISI TEMBAGA Iwantono Iwantono; Sella Natalia; Rinaldo Abdi; Awitdrus Awitdrus; Zulkarnain Zulkarnain
Komunikasi Fisika Indonesia Vol 15, No 2 (2018)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (69.231 KB) | DOI: 10.31258/jkfi.15.2.131-134

Abstract

ZnO nanostructures coated Cu (Copper) have been successfully grown using a method of seed mediated hydrotermal. The growth of Cu coated ZnO nanostructures were used as an active material of DSSC. The Cu on ZnO nanostructures has been coated at a concentration of 10 mM at room temperature in 30 minutes. The samples were characterized using Field Emission Scanning Electron Microscope (FESEM), Energy Dispersive X-ray (EDX). The FESEM images showed that the geometrical shape of ZnO nanostructures was nanoflower. Spectra of EDX showed Cu was really exist in all samplesof about 0.8%. A DSSC was fabricated by using the ZnO nanostructured coated Cu as an active material.The results of I-V measurements under iluminattion of halogen lamp its intensity of 100 mW/cm2 has produced efficiency 0.35% (DSSC without copper) and increasedto 0,43% whenCuwas coated on ZnO.

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