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Number of results: 3
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Abstract

Growing energy demands are expected to render existing energy resources insufficient. Solar energy faces challenges in terms of providing continuous and reliable power supply to consumers. However, it has become increasingly important to implement renewable energy (RE) and energy management (EM) systems to increase the supply of power, improve efficiency, and maintain the stability of energy systems. As such, this present study integrated energy storage (ES) devices; namely, batteries and direct current (DC) to DC converters; into energy systems that support battery operation and effectively manage power flow, especially during peak load demands. The proposed system also addresses low solar irradiation and sudden load change scenarios by enabling the battery to operate in a discharge state to supply power to the load. Conversely, when the demand matches or exceeds the available solar energy, the battery is charged using solar power. The proposed system highlights the significance of RE systems and EM strategies in meeting growing energy demands and ensuring a reliable supply of power during solar variability and fluctuating loads. A MATLAB® Simulink model was used to evaluate the integration of a 200 kW photovoltaic (PV) array with a 380 V grid and 150 kW battery. The loads, consisting of a 100 kW and a 150 kW unit, were parallel connected. The results indicated that boost and three-phase (3Ph) inverters can be used to successfully integrate PV systems to the power grid to supply alternating current (AC) power. The inclusion of a battery also addressed power shortages during periods of insufficient power generation and to store surplus power.
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Authors and Affiliations

Baqer Saleh Mahdi
1
Nasri Sulaiman
1
ORCID: ORCID
Mohanad Abd Shehab
2
Siti Lailatul Mohd Hassan
3
Suhaidi Shafie
1
ORCID: ORCID
Hashim Hizam
1
ORCID: ORCID

  1. Department of Electrical and Electronic Engineering, Universiti Putra Malaysia, 43400 UPM Serdang, Malaysia
  2. Electrical Engineering Department, College of Engineering, Mustansiriyah University, Baghdad, Iraq
  3. School of Electrical Engineering, College of Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia
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Abstract

This paper presents research on the deposition of an indium tin oxide (ITO) layer which may act as a recombination layer in a silicon/perovskite tandem solar cell. ITO was deposited by magnetron sputtering on a highly porous surface of silicon etched by the metal-assisted etching method (MAE) for texturing as nano and microwires. The homogeneity of the ITO layer and the degree of coverage of the silicon wires were assessed using electron microscopy imaging techniques. The quality of the deposited layer was specified, and problems related to both the presence of a porous substrate and the deposition method were determined. The presence of a characteristic structure of the deposited ITO layer resembling a "match" in shape was demonstrated. Due to the specificity of the porous layer of silicon wires, the ITO layer should not exceed 80 nm. Additionally, to avoid differences in ITO thickness at the top and base of the silicon wire, the layer should be no thicker than 40 nm for the given deposition parameters.
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Authors and Affiliations

Grażyna Kulesza-Matlak
1
ORCID: ORCID
Marek Szindler
2
ORCID: ORCID
Magdalena M. Szindler
2
ORCID: ORCID
Anna Sypień
1
ORCID: ORCID
Łukasz Major
1
ORCID: ORCID
Kazimierz Drabczyk
1
ORCID: ORCID

  1. Institute of Metallurgy and Materials Science, Polish Academy of Sciences, ul. W. Reymonta 25, 30-059 Kraków, Poland
  2. Faculty of Mechanical Engineering, Silesian University of Technology, ul. Akademicka 2A, 44-100 Gliwice, Poland
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Abstract

In recent years, metal halide perovskites have gained significant attention due to their unique optical and electronic properties of semiconductor materials, which make them ideal for use in sustainable and energy-efficient devices. These devices include solar cells, lasers, and light-emitting diodes. Therefore, this review aims initially to provide an overview of the most important characteristics of metal halide perovskites, including their engineering development in various types, such as those based on lead or lead-free materials, like tin or germanium. Additionally, perovskites made from purely inorganic compounds like caesium bromide, chloride, or iodide, as well as hybrids mixed with organic compounds like formamidinium and methylammonium halides will be discussed. The goal is to improve their stability and efficiency. Secondly, some of the studies have proposed technologies combining electronic and mechanical characteristics of flexibility or rigidity as required, promoting their synthesis with different materials such as polymers (poly methyl methacrylate, polyvinylidene fluoride), biopolymers (starch, cyclodextrin, polylactic acid, and polylysines), among others. Finally, the subject of this work is to establish the main purpose of the research carried out so far, which is to develop simpler and more scalable processes at industrial level to achieve greater efficiency and duration in storage, exposure to visible light, critical environments, humid or high temperatures.
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Authors and Affiliations

Hariana I. Farfan
1
ORCID: ORCID
Karol L. Roa
1 2
ORCID: ORCID
Hugo F. Castro
1
ORCID: ORCID

  1.  Universidad Pedagógica y Tecnológica de Colombia, Sogamoso, Boyacá, Colombia
  2. National Polytechnic Institute, Ciudad de México, Mexico

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