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INDONESIA
Indonesian Physical Review
Published by Universitas Mataram
ISSN : 26151278     EISSN : 26147904     DOI : -
Core Subject : Science, Education,
Education Physics
Indonesian Physical Review is a peer review journal which is managed and published by Physics Departement, Faculty of Mathematics and Natural Sciences, Universitas Mataram. This journal is published periodically three times a year, in January, May and September. IPR is Open Accsess for all readers and includes research developments in physics both experimentally and analytically. Focus and scope include Theoritical Physics, Computation, Material sciences, Instrumentation, Biophysics, Geophysics, and Optics.
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Articles 6 Documents
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Search results for , issue "Vol. 1 No. 1 (2018)" : 6 Documents clear
EKSTRAK GETAH PEPAYA (Carica Papaya) DENGAN PENAMBAHAN Cu SEBAGAI DYE SENSITIZER SOLAR CELL (DSSC) Kurniawidi, Dian Wijaya; Alaa, Siti; Rahayu, Susi
Indonesian Physical Review Vol. 1 No. 1 (2018)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (485.082 KB) | DOI: 10.29303/ipr.v1i1.5

Abstract

Indonesia is a biodiversity country. Abundance of biological resources may encourage researchers to optimize its use. As an example papaya trees are utilized as raw material for thin films. Sap of papaya latex is doppinged with Cu. This composition is depositioned on top of FTO by spin coating method. The addition of Cu dopping aims to control the rate of crystallinity of the material. This research will add Cu between 10% and 50% solution. Based on FTIR test results, flavonoid compounds might be obtained with O-H group, some aromatic rings C = C and C = O, aliphatic compounds C-H and -CO. Flavonoid compounds are potentially utilized as dye for DSSC. The thickness of dye produced by doping Cu 10% is approximately (0.5-2) μm. Furthermore, dopping Cu from 20% to 40% can produce thickness around 10-50 nm. Meanwhile, the results of the XRD test show an effective Cu between 10% to 40%.
ELECTROMAGNETIC WAVE EQUATION ON DIFFERENTIAL FORM REPRESENTATION Handayana, I Gusti Ngurah Yudi
Indonesian Physical Review Vol. 1 No. 1 (2018)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (489.375 KB) | DOI: 10.29303/ipr.v1i1.12

Abstract

One of the indispensable part of the theoretical physics interest is geometry differential. This one interest of physical area has been developed such as in electromagnetism. Maxwell's equations have been generalized in two covariant forms in differential form representation. A beautiful calculus vector in this representation, such as exterior derivative and Hodge star operator, lead this study. Electromagnetic wave equation has been expressed in differential form representation using Laplace-de Rham operator. Explicitly, wave equation shows the same form in Minkowski space-time like vector representation. This study is able to introduce us to learn application of  differential form in physics.
ANALISIS ANOMALI SUHU PERMUKAAN LAUT DAN PENGARUH FENOMENA EL-NINO DAN LA-NINA TERHADAP PERUBAHAN NILAI ANOMALI SUHU PERMUKAAN LAUT DI PERAIRAN NUSA TENGGARA BARAT TAHUN 2008 - 2017 jamili, Syahrul; Sudiarta, I Wayan; Angraini, Lily Maysari
Indonesian Physical Review Vol. 1 No. 1 (2018)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3886.378 KB) | DOI: 10.29303/ipr.v1i1.14

Abstract

Fenomena El-Nino dan La-Nina yang selanjutnya disebut ENSO sangat berdampak bagi cuaca dan iklim di Indonesia, salah satunya pada Perairan Nusa Tenggara Barat. Oleh karena itu, perlu dilakukan analisis anomali suhu permukaan laut di perairan Nusa Tenggara Barat. Data anomali SPL dan Indeks Nino 3.4 yang digunakan adalah data skunder dari stasiun ESRL-NOAA (Earth System Research-National Oceanic and Atmoshperic Administration) sedangkan data Indeks Osilasi Selatan dari stasiun AG-BOM (Australian Government-Bureau of Meteorology) dari tahun 2008 sampai dengan 2017. Penlitian ini bertujuan untuk mengetahui distribusi anomali SPL di perairan Nusa Tenggara Barat dari tahun 2008-2017 dan untuk mengetahui kondisi perairan NTB saat terjadi El-Nino dan La-Nina berdasarkan Indikator Indeks Nino 3.4 dan Indeks Osilasi Selatan (IOS) tahun 2008-2017. Berdasarkan Indikator Indeks Nino 3.4. Kejadian El-Nino level kuat diikuti dengan menurunnya nilai anomali SPL di Perairan Nusa Tenggara Barat sedangkan kejadian La-Nina level kuat diikuti dengan peningkatan anomali SPL perairan NTB. Untuk melihat hubungan antara data anomali SPL dengan Indeks Nino 3.4 dan IOS digunakan metode analisis regresi dan korelasi. Dari hasil penelitian ini didapatkan bahwa distribusi anomali SPL perairan Nusa Tenggara Barat pada tahun 2008 hingga 2017. Terlihat  nilai anomali SPL bagian utara rata-rata cenderung meningkat dibandingkan dengan perairan Nusa Tenggara barat bagian selatan
THE ANALYSIS OF ATTENUATION COEFFICIENT AND ACOUSTIC IMPEDANCE OF CEILING PANEL USING IMPEDANCE CHAMBER METHOD Putramulyo, Satriogi; Wirawan, Rahadi; Alaa, Siti; Qomariyah, Nurul
Indonesian Physical Review Vol. 1 No. 1 (2018)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (666.803 KB) | DOI: 10.29303/ipr.v1i1.7

Abstract

The purposed of this research is to determine the attenuation coefficient and acoustic impedance of ceiling panel like plywood, calsiboard and bamboo woven.  The influence thickness, paint coated, air cavity increment of the attenuation coefficient and acoustic impedance of these ceiling panel are also mesured. The impedance chamber method with range of frequency 100 Hz – 5000 Hz are used here. The result shows that the average of attenuation coefficient for plywood panel, calsiboard panel and bamboo woven panel are 0,37 Npmm-1, 0,62 Npmm-1 and 0,28 Npmm-1 respectively. In addition, the acoustic impedance of these panel is 1,33 x 106 kgm-2s-1, 3,74 x 106 kgm-2s-1 and 1,15 x 106 kgm-2s-1. The attenuation coefficient is decreased with the increasing thickness of the panel and the same trend is founded of the acoustic impedance. Meanwhile, the paint coated can increase attenuation coefficient and acoustic impedance. For the air cavity increment ceiling panel, the attenuation coefficient and acoustic impedance are less than the solid panel.
TWO-PARTICLE THERMAL DENSITY MATRICES IN ONE DIMENSION USING FINITE DIFFERENCE TIME DOMAIN (FDTD) METHOD subhan, subhan; Sudiarta, I Wayan; Angraini, Lily Maysari
Indonesian Physical Review Vol. 1 No. 1 (2018)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (654.925 KB) | DOI: 10.29303/ipr.v1i1.13

Abstract

A quantum system in the thermal equilibrium state is a mixed state consisting of statistical ensembles of several different quantum systems can be represented by a thermal density matrix. In this research, the thermal density matrix is calculated for two-particle system case non-interaction in one-dimensional square well and one-dimensional harmonic oscillator using finite difference time domain (FDTD) method. In addition, thermal density matrix calculations are also performed for the case of two particle systems interacting in a one-dimensional harmonic oscillator. We present results of probability densities, partition functions, and internal energies for three cases: two distinguishable particles, two fermions and two bosons. Validation of numerical results of thermal density matrix and probability density is accurate with analytical solutions. Then, the result of partition function and internal energy the system is strongly effect by temperature. At low temperatures, internal energy the system will lead to the lowest energy or ground state.
MAKING PROTOTYPE DYE-SENSITIZED SOLAR CELLS (DSSC) BASED ON TiO2 NANOPORY USING EXTRACTION OF MANGOSTEEN PEEL (Garnicia mangostana) Hardani, Hardani; Hidayatullah, Alpiana; Angraini, Lily Maysari
Indonesian Physical Review Vol. 1 No. 1 (2018)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (647.469 KB) | DOI: 10.29303/ipr.v1i1.2

Abstract

Dye-sensitized solar cell (DSSC) is one of the photochemical electrical cells consisting of a photoelectrode, dye, electrolyte, and counter electrode. The manufacture of prototype Dye-sensitized solar cell (DSSC) utilizes carotene from the dye extract of mangosteen peel pigment (Garnicia mangostana). This study aims to create a Dye-sensitized solar cell (DSSC) and know the efficiency it produces. This Dye-sensitized solar cell (DSSC) consists of a pair of FTO (Flour-doped in oxide) glass intercepts facing each other. The glass acts as an electrode and counter electrode and separated by a redox electrolyte (I- / I3-), arranged to flank each other to form a wafer. In the electrode, is deposited a porous nanocrystalline TiO2 layer, as well as dye extract of mangosteen peel pigment (Garnicia mangostana). While on the counter electrode coated with a layer of platinum. This article presents some experimental data on absorbance properties and the conductivity of dye extract of mangosteen peel pigment (Garnicia mangostana) as an application in 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 peel pigment (Garnicia mangostana) with coating spin coating technique. The results showed that the dye extract of mangosteen peel pigment (Garnicia mangostana) had an absorbance spectrum of 380-520 nm range. From the test results using AM 1.5G solar simulator (100 mW / cm2), it was found that the volume of TiO2 precursors affected the performance of DSSC solar cells and the overall conversion efficiency was 0.092%.

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