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125 articles for “light absorption”
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A Study on The Optimization of Culture Conditions using NPK, A Commercial Fertilizer for Increase in the Biomass of Microalgae, Scenedesmus Bujigatus
Abstract: Algal biomass is rich in all the required nutrients for human body and acts as food as well as medicine in the treatment of a number of therapeutic and chemo preventive diseases. Algae are capable of enhancing nutrient contents of the conventional human food. This may be assigned to their healthy and balanced chemical composition. The current study aims to investigate the light absorption characteristics of the microalgae, Scenedesmus bujigatus …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 1, Issue 1, 2011 · pp. 1–3 Read article
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Perovskite-Silicon Thin Film Based Tandem Solar Cell
Abstract: A perovskite-microcrystalline silicon-based thin-film tandem solar cell was designed and investigated, where perovskite and microcrystalline cells used as top and bottom cells, respectively, for better and higher light absorption utilizing the very high open-circuit voltage. The study was carried out for simulation results of quantum efficiency and short circuit current based on different thicknesses of the top and bottom cell-intrinsic layer. A very good short circuit matched current has been …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 22, Issue 2, 2020 · pp. 23–29 Read article
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Graphene: A Pathway to Advanced Photonics
Abstract: In this paper, we discuss the potential of graphene with its unique properties to create a new pathway for advancement in photonic devices. Modulators and photodetectors are discussed in detail as these are the foundation of advanced photonics. We begin with an outline of how graphene is discovered and how its production processes sped up its marketing value. In the next section, basic physics of modulator are discussed and how …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 24, Issue 2, 2022 · pp. 17–26 Read article
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Development and Validation of Spectrophotometric and Colorimetric Method for the Determination of Ritonavir in its Bulk and Pharmaceutical Dosage Form
Abstract: A straightforward, exact, precise and sensitive UV spectrophotometric assay technique and a basic and sensitive colorimetric assay method have been created and validated for the quantitative estimation of Ritonavir from bulk drug and tablet formulations. UV spectrophotometric strategy which includes the assurance of Ritonavir in bulk medication and pharmaceutical dosage forms and has an assimilation greatest at 240 nm in methanol. The Beer's law was obeyed over the concentration range …
Published in Trends in Drug Delivery · Vol. 4, Issue 3, 2017 · pp. 32–41 Read article
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Organic Material Based Device of VLSI :Solar Cell
Abstract: This focuses on one of the organic material-based devices of VLSI, which is Solar Cell, an electrical device that absorbs and converts the light energy precisely into electricity. This operates through the absorption of light which produces the pairs of electron-hole. After which it operates through the separation of charge carriers of the opposite one and lastly the separation of those carriers originates to a circuit. This covers the overall …
Published in Journal of VLSI Design Tools and Technology · Vol. 9, Issue 3, 2019 · pp. 16–20 Read article
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Exploring Molecular Spectroscopy: Insights into Chemical Structures and Interactions
Abstract: A key tool for understanding the dynamics, structure, and interactions of molecules is molecular spectroscopy. This abstract outlines the key principles and techniques employed in modern molecular spectroscopy, highlighting its significance in various scientific disciplines. The focus is on the principles of absorption, emission, and scattering of electromagnetic radiation by molecules, leading to valuable insights into molecular properties. The abstract begins by discussing the basic principles of molecular spectroscopy, emphasizing …
Published in International Journal of Photochemistry and Photochemical Research · Vol. 1, Issue 1, 2023 · pp. 11–16 Read article
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Gold Nanoparticles: Preparation, Characterization and Its Stability in Buffer
Abstract: Among the colorimetric detection tactics, metallic nanoparticle based detection is gaining more attention due to quickness and less resource requirement at the point of use. Unique chemical inertness, shape, size and optical attributes of gold nanoparticles (GNPs) make them ideal for various diagnostic tools. In this approach synthesized GNPs were stabilized by citrate counter ions. These GNPs were characterized for their optical properties, shape, size, zeta potential, and dynamic light …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 17, Issue 1, 2015 · pp. 1–10 Read article
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Activation Energy in Photochemical and Thermally Driven Reactions: Mechanistic Insights, Kinetic Modelling and Photocatalytic Applications
Abstract: Chemical reactions constitute fundamental processes in which reactants are transformed into products through the breaking and formation of chemical bonds. In photochemical systems, these transformations are initiated or influenced by the absorption of light, making energy transfer mechanisms particularly significant. A key parameter governing reaction kinetics is activation energy, defined as the minimum energy required for reactant molecules to undergo a successful transformation. This article focuses on the role of …
Published in International Journal of Photochemistry and Photochemical Research · Vol. 4, Issue 1, 2026 · pp. 21–26 Read article
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Nanotechnology Based Solar Cells: A Review
Abstract: In the last few decades, a change in the global climate has given rise to a strong interest in renewable sources of energy and most of all, solar energy, an industry which has gone through steady growth over the last few years. As with most industries, the solar industry also has an equal number of pros and cons. In this scenario, where the biggest and the main pro is the …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 13, Issue 1, 2022 · pp. 37–42 Read article
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Performances of NH3-H2O Vapour Absorption Refrigeration Cycles
Abstract: To achieve vital enhancements on micro-scale to buildings, cooling, heating and power systems for residential and light-weight industrial buildings, absorption cooling technology gift a chance. Their resultant effects are effective, energy economical and economical recent developments in. This study thus contributes a vital information and methodology within the development, fabrication and application of an absorption icebox as a higher various to the normally used mechanical device refrigerators. 2 fluid gas …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 6, Issue 1, 2019 · pp. 9–13 Read article
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Review on UV – Visible Spectroscopy and HPLC
Abstract: Like Fourier-transform infrared spectroscopy, UV-visible spectroscopy is used to determine the purity of pharmaceutical compounds. Many substances have chromospheres, which absorb certain wavelengths of ultraviolet or visible light. Using the Beer–Lambert equation, the absorption of spectra obtained from these samples at given wavelengths can be directly related to the sample concentration. Normally, UV and UV-visible spectra are recorded at high and low pH, and the results of both are compared …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 13, Issue 1, 2022 · pp. 43–54 Read article
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Selection of Appropriate Porous Material for Designing and Developing Hybrid Absorptive Muffler: A Wave 1-D Based Approach
Abstract: In this study, glass wool and rock wool are used as sound-absorbing materials to assess the sound transmission loss (STL) of hybrid absorptive mufflers. Improving the muffler's acoustic performance and assessing how well these materials attenuate noise are the main goals. Rock wool, which offers greater thermal resistance and broader frequency absorption, is contrasted with glass wool, which is renowned for its lightweight construction and high-frequency absorption. Wave 1-D simulation …
Published in Journal of Polymer & Composites · Vol. 13, Issue 3, 2025 · pp. 148–160 Read article
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Aerosol Loadings in Association with Vegetative Properties: A Case Study Over North Indian Region
Abstract: Aerosols play an important role in the atmospheric absorption and scattering of light, thereby leading to both warming and cooling of atmosphere. In the Indian subcontinent, the concentration of the aerosols is increasing due to anthropogenic activities which in turn could affect the vegetative properties in the region. The paper presents the study of aerosol optical depth (AOD) in association with vegetative properties using Level 3 data from Multi-angle Imaging …
Published in Journal of Remote Sensing & GIS · Vol. 6, Issue 3, 2015 · pp. 1–5 Read article
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Development of Environmentally Friendly Concrete by Incorporating Rubber and Leather Waste
Abstract: The valorization of post-consumer polymeric waste into high-performance composite materials offers a sustainable strategy for advancing circular economy principles and reducing environmental impacts.This study investigates the feasibility of utilizing recycled crumb rubber from end-of-life tires and leather-derived polymeric waste from the footwear industry as sustainable fillers in polymer-modified cementitious composites. Crumb rubber and processed leather waste were incorporated as partial replacements for natural fine aggregate at replacement levels of 0%, …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 · pp. 547–563 Read article
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AR Coatings in Solar Efficiency: A Study
Abstract: In the global race toward renewable energy dominance, the focus often fixes upon the exotic materials within the photovoltaic cell: silicon type, junction structure, or emergent perovskites. Yet, the most immediate and profound efficiency gains are often secured by a layer so thin it is invisible, a film of optimized material applied directly to the glass interface: the Anti-Reflective (AR) coating. These coatings are not merely an expensive aesthetic choice; …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 12, Issue 3, 2025 · pp. 26–35 Read article
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Photonic Polymer Composites for Light-Modulating Displays and High-Throughput Optical Data Transmission
Abstract: The combination of PMMA-based composites recently received substantial attention from the photonic applications field since these materials combine excellent optical transparency, mechanical flexibility and straightforward fabrication capabilities. The material performance of pure PMMA requires functional additives because it shows limited thermal properties and optical attenuation in addition to sensitivity against UV rays. The research explores developmental pathways for PMMA composites through combined use of nanoparticles and electro-optic polymers with dopants …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 838–860 Read article
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Al-MMC Foam: Synthesis and Characterisation
Abstract: Aluminium alloy composite foams are produced in the laboratory using TiH2-CaCO3 dual foaming agents. The density of the developed material varied along various cross sections. There exists a more pronounced variation in density along the direction of foaming. Compressive and tensile tests are performed on Aluminium Metal Matrix composite (Al-MMC) specimens of different relative density. The compressive stress-strain response of the material establishes their engineering utility in terms of their …
Published in Journal of Materials & Metallurgical Engineering · Vol. 1, Issue 1-3, 2011 · pp. 18–27 Read article
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Photoreceptor Dynamics: Light Sensing and Cellular Responses for Photochemistry
Abstract: Photoreceptor dynamics represent a fundamental aspect of photochemistry, encompassing the mechanisms by which biological systems detect and respond to light stimuli. Photoreceptors are specialized proteins that undergo structural and functional changes upon photon absorption, initiating a cascade of molecular events that translate light signals into cellular responses. These proteins are ubiquitous across life forms, including microbial rhodopsins, plant phytochromes, and animal opsins, each finely tuned to specific wavelengths and light …
Published in International Journal of Photochemistry and Photochemical Research · Vol. 3, Issue 2, 2025 · pp. 28–32 Read article
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Characterization and Fabrication of Particle Board from Banana Fiber and Sawdust as A Hybrid Composite
Abstract: The current global landscape emphasizes the search for eco-friendly and regenerative materials. Utilizing environmentally available fibers in conjunction with polymeric resins through efficient manufacturing processes offers a cost-effective solution with high-quality standards. Polymer matrix composites with fiber reinforcements possess several advantages, including low production costs, ease of fabrication, and improved material properties, making them applicable in a wide range of industrial contexts. This paper emphasizes the creation of Particle boards …
Published in Journal of Polymer & Composites · Vol. 13, Issue 3, 2025 · pp. 192–200 Read article
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Degradation in Energy Yield of Solar Photovoltaic Power Plant due to Soiling Effect
Abstract: Renewable energy resources are the future of the world. Solar photovoltaic energy conversion is one such type of clean and sustainable energy resource. Solar photovoltaic power plant’s performance is directly dependent on the sun’s incoming solar radiation availability and its intensity. Solar energy conversion of photovoltaic power plants is limited by local climatic parameters such as temperature, wind, humidity, dust deposition, etc. and geographical factors of latitude, longitude, etc. Accumulation …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 8, Issue 1, 2017 · pp. 6–11 Read article