Penerbit: Department of Physics, Faculty of Mathematics and Natural Science, University of Lampung
P-ISSN: 2747-2043
E-ISSN: 2747-299X
DOI: 10.23960/jemit
Fakultas Matematika dan Ilmu Pengetahuan Alam Fisika dan Astronomi Arsitektur
Artikel (130)
Morphological Study of Electrospun Polyvinylpyrrolidone Fibers at High Concentration Using Water and Ethanol Solvents
Nugroho, Doni Bowo, Kamal, Nada Nadzira Ayasha, Sidabalok, Jenni Bunga Enjelita
In this study, polyvinylpyrrolidone (PVP) (Mw ~40,000 g/mol) fibers were fabricated using distilled water and ethanol via an electrospinning approach. Morphological evaluations were carried out with a Scanning Electron Microscopy (SEM). Fiber diameters were analyzed with ImageJ. Solution Concentrati...
Journal of Energy, Material, and Instrumentation Technology; Vol. 6 No. 4 (2025): Journal of Energy, Material, and Instrumentation Technology; 182-189 | 2025
Improvement of TiO2 Performance with 10% Cu–TiO2/BiVO4 Heterojunction Composite Using Sonication in Photoelectrochemical Water Splitting
Bunga Nurkhalifah, Vera Pangni Fahriani, Sarah Dampang
The global energy crisis, driven by the depletion of fossil fuels, has accelerated the search for renewable energy solutions, including hydrogen production via solar-driven photoelectrochemical (PEC) systems. A major limitation of PEC is the UV-only activity of semiconductors such as TiO2. This stud...
Journal of Energy, Material, and Instrumentation Technology; Vol. 6 No. 4 (2025): Journal of Energy, Material, and Instrumentation Technology; 209-219 | 2025
Enhancement of Corrosion Resistance and Electromagnetic Wave Absorption in Aluminium 6061 through Plasma Electrolytic Oxidation Coating with Ethylenediaminetetracetic Acid
Jessica Valenthine Lantang, Nur Asriyani, Mutmainnah
Aluminium 6061 is well known for its good tensile strength and high corrosion resistance due to the natural protective oxide layer formed on its surface. However, the phenomenon of corrosion can still occur, particularly in aggressive environments, leading to material degradation. To further enhance...
Journal of Energy, Material, and Instrumentation Technology; Vol. 6 No. 4 (2025): Journal of Energy, Material, and Instrumentation Technology; 190-197 | 2025
The Effect of Biaxial Strain on The Thermoelectric Properties of 2D SiBi
Anshory, Muhammad, Y. Hanna, Muhammad
This study investigates the electronic and thermoelectric properties of two-dimensional silicon bismuth (2D SiBi) using first-principles Density Functional Theory (DFT) calculations. The 2D SiBi monolayer is identified as a semiconductor with an indirect band gap of 0.67 eV. Solving the Boltzmann tr...
Journal of Energy, Material, and Instrumentation Technology; Vol. 6 No. 4 (2025): Journal of Energy, Material, and Instrumentation Technology; 220-229 | 2025
Enhancing BLDC Motor Performance with Wheel-Hub Design by Modify Coil Configurations
Putranto, Rifki Dwi , Hafidz, Isa , Kholima, Henko
This paper presents an analysis of the design method of a BLDC (Brushless DC) motor with a wheel-hub structure. This study examines how variations in winding configuration affect motor performance. A 650W wheel-hub BLDC motor will be tested by modifying its stator design, including variations in the...
Journal of Energy, Material, and Instrumentation Technology; Vol. 6 No. 3 (2025): Journal of Energy, Material, and Instrumentation Technology; 166-173 | 2025
Sustainable Lithium Battery Development in Indonesia: The Role of Natural Materials and Recycling Processes in Future Challenges
Latif, Chaironi, Yogianto, Mohammad Fahmi Ilmi , Hafidz, Isa
The development of sustainable lithium-ion batteries is essential to meet the global demand for efficient, high-capacity, and environmentally friendly energy storage systems. This study reviews recent advancements in lithium battery technologies in Indonesia, emphasizing the utilization and performa...
Journal of Energy, Material, and Instrumentation Technology; Vol. 6 No. 3 (2025): Journal of Energy, Material, and Instrumentation Technology; 154-165 | 2025
Development of a Portable Low-Cost Multispectral Sensor Integrated with IoT and Machine Learning for Classifying Honey Types
Muhammad, Riki, Isroni, wisesa, Tri Pujian
Accurate honey type authentication is a significant challenge for small-scale producers, as conventional methods are often costly and impractical. This study aims to design and develop a low-cost honey classification prototype by integrating the AS7265X multispectral sensor with Internet of Things (...
Journal of Energy, Material, and Instrumentation Technology; Vol. 6 No. 3 (2025): Journal of Energy, Material, and Instrumentation Technology; 143-153 | 2025
Effect of Layer Deposition and Thermal Treatment on the Structural, Optical, and Electrical Characteristics of Spin-Coated CaTiO3 Thin Films
Yusron, Darojat, Mustafida, Aulia, Abdul, Rajak
This study investigates the effect of coating repetition and annealing temperature on the structural, optical, and electrical characteristics of calcium titanate (CaTiO3) thin films synthesized via a sol-gel spin coating method. The number of coatings (2, 4, 6, and 8 layers) and annealing temperatur...
Journal of Energy, Material, and Instrumentation Technology; Vol. 6 No. 3 (2025): Journal of Energy, Material, and Instrumentation Technology; 135-142 | 2025
Analysis of Aluminium Alloy 6061 Material Coating with the Addition of Malonic Acid Additive in the Plasma Electrolytic Oxidation Method to Improve Corrosion Resistance Properties
Lubis, Muhammad Ihsan, Mutmainnah, Kamil, Muhammad Prisla
Aluminum alloy 6061 is extensively used in structural and engineering applications due to its favorable strength-to-weight ratio, good mechanical properties, and inherent corrosion resistance. However, it remains vulnerable to localized corrosion, especially in chloride-rich environments. This study...
Journal of Energy, Material, and Instrumentation Technology; Vol. 6 No. 3 (2025): Journal of Energy, Material, and Instrumentation Technology; 124-134 | 2025
The Effect of NaOH on the Synthesis of Nano ZnO Using Red Betel Leaves (Piper crocatum) by Green Synthesis Method
Nurcahayaniati, Hikmah, Manurung, Posman, Suciyati, Sri Wahyu
ZnO has been produced using a green synthesis method. This research aims to determine the effect of  NaOH variations on ZnO nanoparticles obtained using red betel leaf extract. The variation of  NaOH used is 0,2; 0,4; 0,6;  the characterization carried out was Fourier Transformation Infra Red (FT...
Journal of Energy, Material, and Instrumentation Technology; Vol. 6 No. 3 (2025): Journal of Energy, Material, and Instrumentation Technology; 117-123 | 2025