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68 articles for “Optical conductivity”
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Effect of Electrochemically Synthesized Zno/CoO Nanocomposites on Optical, Electrical and Viscosity Properties of Polyvinyl Alcohol Films
Abstract: AbstractZnO/CoO nanocomposites doped poly vinyl alcohol films were prepared by casting method using water as a solvent. X-ray diffraction, IR spectroscopy UV-visible spectroscopy, and scanning electron microscopy techniques were used to characterize the synthesized nanocomposite films. Study of the structural changes and complexation of nanoparticles with polymer matrix were performed using X-ray and IR techniques. Optical characterization studies revealed a blue shift in the absorption edge with increasing nanoparticle concentration …
Published in Journal of Polymer & Composites · Vol. 4, Issue 2, 2016 · pp. 52–62 Read article
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Aluminium-Doped Zinc Ferrite Nanoparticles Synthesized by Combustion Method for Polymer Composite Applications
Abstract: ZnFe₂₋xAlₓO₄ (x = 0 and 0.5) nanoparticles were synthesized via a combustion method owing to its simplicity, cost efficiency, and ability to produce highly crystalline nanomaterials. Powder X-ray diffraction (XRD) analysis confirmed the formation of a single-phase cubic spinel structure without detectable secondary phases, indicating high phase purity. The average crystallite size was estimated to be in the range of 14–20 nm, confirming the nanocrystalline nature of the samples. Field-emission …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 272–282 Read article
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Exploring Carbon Nanotubes in Nanotechnology: Functional Properties, Surface Modifications, and Biomedical Innovations
Abstract: Significant progress has been made in nanotechnology in recent years, especially in the creation of sensors with a broad range of uses. Among these, carbon nanotubes (CNTs) are cylindrical structures composed of carbon, with diameters in the nanometer range. CNTs originate from graphite sheets, where the graphite layers resemble a rolled-up, continuous, and robust hexagonal mesh. These hexagons have carbon atoms at their vertices. The fabrication of CNTs typically involves …
Published in International Journal of Photochemistry and Photochemical Research · Vol. 2, Issue 2, 2024 · pp. 24–31 Read article
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Investigation of Electro-optical Characteristic and Structure Optimization of PMMA: Bepq2/BCP/Tpbi Blue Highly Efficient OLED Device
Abstract: In this Investigation, the energy level structure of the Spiro-MeOTAD/PMMA: Bepq2/BCP/Tpbi/LiF OLED has been investigated to explain the method of electron-hole charge carrier pair recombination and the light generation. The Maxwell-Boltzmann statistics model was applied to optimize the structure to reduce the band gap between conductive layers. We found the simulated results J–V, J-Illumination flux, and Current Efficiency (CE) characteristics when we applied forward bias. Inconclusive results determined the threshold …
Published in Journal of Polymer & Composites · Vol. 11, Issue 5, 2023 · pp. 56–68 Read article
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Retinal Nerve Fibre Layer (RNFL) Thickness and Its Correlation with High Myopia: A Preliminary Normogram
Abstract: To evaluate the association of high myopia with Retinal Nerve Fibre Layer (RNFL) thickness especially in the peripheral retina after ruling out other causes of RNFL thinning. An observational cross-section study was conducted. Excluding concomitant ophthalmic diseases we have selected Fifty highly myopic eyes and forty emmetropic eyes for RNFL thickness measurment using the Fourier domain optical coherence tomography (FD OCT). Average thickness of RNFL in myopic eye was 87.89 …
Published in Research and Reviews : A Journal of Medical Science and Technology · Vol. 4, Issue 2, 2015 · pp. 31–38 Read article
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Anti-Soiling Coating Technologies for PV Panels Under Dust Storm Conditions
Abstract: Background: Deployment of photovoltaics (PV) in arid and semi-arid areas where there is ample sunlight has been increasing quickly because of their high solar irradiation. The rising number of dust storms, as well as depositing particulate matter into the air, has caused a significant decrease in energy production due to reduced transmittance of light through the surface of the PV panel from the dust on the panel’s surface. This has …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 13, Issue 2, 2026 · pp. 28–38 Read article
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Polymer Encapsulants for Photovoltaic Modules: Electrical Insulation Performance and Long-Term Durability under Accelerated UV Exposure
Abstract: Influence on the reliability and service life of PV modules is a major issue, which is influenced by the encapsulant degradation in long-term exposure to the sun's ultraviolet (UV) radiation. A systematic accelerated UV aging study of Ethylene Vinyl Acetate (EVA), Polyolefin Elastomer (POE), and Polyvinyl Butyral (PVB) films under IEC 61215-2:2021 specified test chamber conditions of Q-UV is conducted. The material properties were tested at various exposure intervals including …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 384–408 Read article
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Suitability of Additive Manufacturing Process in Optical Lens Production
Abstract: Additive Manufacturing is one of the non-conventional methods of manufacturing that is gaining immense popularity for its ease to manufacture customized parts. The lenses have always been manufactured using a continuous process of Blanking, Surface generation, Edging and Centering, Grinding, Polishing, and Coating. But the conventional processes demand large inventories and more time. Customization of lenses may also be possible if a process like Additive Manufacturing is implemented. Also, the …
Published in Trends in Mechanical Engineering & Technology · Vol. 11, Issue 3, 2021 · pp. 39–46 Read article
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Tactile Sensing Technologies in Robotics: A Review of Sensors, Materials, and Applications
Abstract: Tactile sensing, which closely resembles the human sense of touch, is an essential capability in modern robotics. It enables robots to detect and interpret physical interactions with objects, surfaces, and living beings, thereby allowing them to operate more intelligently and adaptively in complex environments. Unlike visual or auditory sensors, tactile sensors provide direct feedback about contact, pressure, texture, force, temperature, and even vibration. These sensory cues are vital for improving …
Published in International Journal of Robotics and Automation in Mechanics · Vol. 3, Issue 1, 2025 · pp. 17–23 Read article
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Synthesis and Structural Characterization of Nanocrystalline CeO2 and Ce0.95Cu0.05O2 Solid Solution Catalysts: Properties and Applications
Abstract: The main study and the development of CeO2 and Cu-doped CeO2 nanocrystals containing transition- metal species are of crucial importance for understanding the preparation and fabrication of CeO2 and Cu-doped CeO2 nanoparticles by solution combustion technique to taken glycine as fuel. The structural properties of Ce1-xCuxO2 nanocrystals were examined by investigating the influence of cerium dioxide and Cu dopant ions. The CeO2 single-phase cubic system was successfully incorporated with Cu …
Published in Journal of Catalyst & Catalysis · Vol. 11, Issue 3, 2024 · pp. 29–38 Read article
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Au@Sio2@PVP-DCMD Membranes: A Breakthrough in Heavy Metal Removal and Antibacterial Defense
Abstract: This study investigates the development and characterization of multifunctional gold-doped silica (Au@SiO₂) membranes for water distillation and antibacterial applications. The manufacturing process integrated gold nanoparticles into silica matrices using sol-gel techniques. Structural analysis was conducted using SEM (showing uniform pore distribution with an average pore size of 40-50 nm), FTIR (confirming Si-O-Si and Si-Au-Si bonding peaks at 525 cm⁻¹ and 1310 cm⁻¹ respectively), EDX (revealing gold nanoparticle content of 1.5 …
Published in Journal of Polymer & Composites · Vol. 13, Issue 3, 2025 · pp. 13–27 Read article
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Optimization of a new Bebq2/BCP-based OLED structure for optimum performance
Abstract: Opto-electronic devices exhibit highly nonlinear current–voltage (I–V) characteristics that significantly affect charge injection, transport, and recombination, evaluating their performance remains a difficult challenge. Device optimization is a key research goal in organic light-emitting diodes (OLEDs), as the thickness and arrangement of individual functional layers greatly influence electrical and optical responses. For a suggested Bebq2/BCP-based OLED structure, this work methodically examines the movement of charge carriers, their transport behavior, and the …
Published in Journal of Semiconductor Devices and Circuits · Vol. 13, Issue 2, 2026 Read article
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Detailed Study On Physical Properties Of Silicon Nitride Films Deposited By Plasma Enhanced Chemical Vapour Deposition System
Abstract: Amorphous silicon nitride films have been deposited by radio frequency plasma enhanced chemical vapor deposition (RF-PECVD) technique using silane (SiH4) and ammonia (NH3) as source gases. Investigations have been made in detail to understand the influence of process parameters such as RF power, substrate temperature, gas flow ratio, working pressure etc, on the optical, electrical and surface properties in order to obtain dielectric Si3N4 films for semiconductor device applications. Amorphous …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 3, Issue 1, 2016 · pp. 1–8 Read article
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Image-Based Crack Morphology Characterisation for Electrical Failure Analysis in Conductive Polymer Composites
Abstract: Electrical performance in conductive polymer composites is strongly governed by crack-network evolution, yet failure analysis typically relies on qualitative image inspection or electrical anomaly detection in isolation. This work proposes an end-to-end framework that converts optical/SEM crack imagery into a standardised crack morphology signature and quantitatively links it to electrical degradation indicators. A two-stage learning strategy is adopted: crack-representation pretraining using the public Concrete Crack Images for Classification dataset, followed …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 1375-1386 Read article
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Characterization and Fabrication of Hybrid Matrix Composites of AZ91E Metal with Distinct Reinforcements of Fly Ash and ZrO2
Abstract: The current work choose the characteristics of (Magnesium composite) AZ91E-ZrO2-Fly ash Hybrid Metal Matrix using the regular analytic system. The chosen materials for this purpose are fly ash and ZrO2 in equivalent load extents, Stir casting uses a vortex technique to produce composite materials. A comprehensive experimental investigation was conducted to assess the performance characteristics of AZ91E-ZrO2-Fly ash during the cold upsetting process. The study involved utilizing AZ91E magnesium alloy …
Published in Journal of Polymer & Composites · Vol. 11, Issue 8, 2023 Read article
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Polymer-Nanowire Hybrid Composites Based on PEDOT: PSS and AgNWs for High-Performance Conductive Films in Flexible Devices
Abstract: The growing demand for flexible photovoltaic and wearable optoelectronic devices has intensified research into polymer-based conductive composites that provide transparency, flexibility, and electrical efficiency. In this work, we report the fabrication and characterization of a hybrid polymer nanocomposite electrode comprising silver nanowires (AgNWs) embedded within a PEDOT:PSS matrix, deposited on flexible polyethylene terephthalate (PET) substrates. The PEDOT:PSS polymer phase, modified with 5 vol% dimethyl sulfoxide (DMSO) and 0.1 vol% Zonyl …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 236–250 Read article
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Nanowire Photodetectors and Applications: A Review Study
Abstract: The utilization of nanowires and nanowire structures as photodetectors is an arising research subject. Novel gadget structures incorporated in single nanowire gadgets are additionally being effectively contemplated and created. Here, general NW-PD ideas are investigated, along with a point-by-point depiction of the actual phenomenon happening in nanowire photoconductors & phototransistors. Low dimensional frameworks like nanotubes and nanowires have intriguing, and technologically valuable, optical and electrical properties. Studies on these frameworks …
Published in Journal of Semiconductor Devices and Circuits · Vol. 10, Issue 2, 2024 · pp. 15–19 Read article
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Nanowire Photodetectors and Applications: A Review Study
Abstract: The utilization of nanowires and nanowire structures as photodetectors is an arising research subject. Novel gadget structures incorporated in single nanowire gadgets are additionally being effectively contemplated and created. Here, general NW-PD ideas are investigated, along with a point-by-point depiction of the actual phenomenon happening in nanowire photoconductors & phototransistors. Low dimensional frameworks like nanotubes and nanowires have intriguing, and technologically valuable, optical and electrical properties. Studies on these frameworks …
Published in Journal of Semiconductor Devices and Circuits · Vol. 10, Issue 2, 2024 · pp. 15–19 Read article
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Optical, Thermal Properties of Cadmium Chloride Reinforced PVA:PVP Blend Films
Abstract: In this study, pure polymer blend film (PVA:PVP) and salt (CdCl2.H2O) reinforced polymer blend films were prepared at different weight ratios (10, 20, 30) wt% using the casting method. The optical and thermal properties of all polymer blend films were studied.The transmittance and absorbance spectra were recorded within the wavelength range (190-1100) nm. The effect of salt weight ratio on the energy gap of salt (CdCl2.H2O) reinforced polymer blend films …
Published in Journal of Polymer & Composites · Vol. 8, Issue 1, 2020 · pp. 46–52 Read article
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Development and Performance Evaluation of GO–ZnO/PU Hybrid Nanocomposite Coatings for Improved Optical Transmission, Cooling, and Self-Cleaning in PV Systems
Abstract: The performance of solar photovoltaic (PV) modules with time is affected by thermal heating, dust buildup, and exposure to ultraviolet (UV) light; as a result, the power loss increases rapidly during the use condition. In this study, a polyurethane (PU) nanocomposite, fabricated with graphene oxide and zinc oxide (GO–ZnO), is invented and examined. Improvements in heat management, light transmission, and dirt resistance are planned for PV glass surfaces. The nanocomposite …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 243–249 Read article