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12 articles for “photodetection”
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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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Modeling and Simulation of ZnO/Si Hetreojunction Photodetector for Optical Communication
Abstract: AbstractIn this work, we present numerical simulation and modeling of ZnO/Si Heterojunction photodetectors. We analyze the performance of ZnO/Si Heterojunction photodetectors using commercial device simulation software ATLAS from Silvaco international. Device structure has been created using ATLAS and its electrical and optical characteristics has been simulated using ATLAS. Main figure of merits like dark current, photocurrent, spectral response and quantum efficiency has been extracted.Keywords: ZnO/Si, Heterojunction Photodetector, Silvaco Deckbuild software, …
Published in Trends in Opto-electro & Optical Communication · Vol. 9, Issue 3, 2019 · pp. 19–27 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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Carbon quantum dots (CQDs) and bioinspired photonic nanomaterials have emerged as promising multifunctional platforms for a wide range of applications in optoelectronics, nanomedicine, biosensing, fluorescence imaging, and photodynamic therapy. CQDs are nanoscale carbon-based materials characterized by unique optical and electronic properties, including size-dependent photoluminescence, high photostability, excellent water solubility, low cytotoxicity, and remarkable biocompatibility. These characteristics make them attractive alternatives to conventional semiconductor quantum dots for both technological and biomedical applications. Inspired by natural photonic systems such as photosynthetic light-harvesting complexes, rhodopsin-based photoreceptors, butterfly wings, and bioluminescent organisms, researchers have developed advanced nanostructures capable of efficient photon capture, energy transfer, and photoinduced charge separation. Recent advances in synthesis techniques, including hydrothermal, solvothermal, microwave-assisted, and green synthesis approaches, have enabled precise control over the size, surface chemistry, and optical properties of CQDs. Functionalization and heteroatom doping further enhance their photophysical performance and application versatility. In optoelectronics, CQDs have been incorporated into photodetectors, solar cells, light-emitting diodes, and flexible electronic devices due to their tunable emission characteristics and efficient charge transport properties. In the biomedical field, CQDs are increasingly utilized for targeted drug delivery, bioimaging, biosensing, and photodynamic therapy because of their excellent fluorescence behavior and biological compatibility. Furthermore, bioinspired photonic nanomaterials are being explored for artificial photosynthesis and sustainable energy conversion systems, where efficient light harvesting and electron transfer are critical. This review highlights recent developments in the synthesis, photophysical properties, and multifunctional applications of CQDs and related bioinspired photonic nanomaterials, while discussing current challenges and future opportunities for the development of intelligent nanophotonic and bioelectronic technologies.
Abstract: Carbon quantum dots (CQDs) and bioinspired photonic nanomaterials have emerged as promising multifunctional platforms for a wide range of applications in optoelectronics, nanomedicine, biosensing, fluorescence imaging, and photodynamic therapy. CQDs are nanoscale carbon-based materials characterized by unique optical and electronic properties, including size-dependent photoluminescence, high photostability, excellent water solubility, low cytotoxicity, and remarkable biocompatibility. These characteristics make them attractive alternatives to conventional semiconductor quantum dots for both technological and biomedical …
Published in International Journal of Photochemistry and Photochemical Research · Vol. 4, Issue 2, 2026 · pp. 16–24 Read article
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An Evaluation of Photodynamic Therapy in Dentistry with a Focus on Surgical Applications
Abstract: Throughout the centuries, various forms of light therapy have found applications in medical settings. These include phototherapy for neonatal jaundice, psoralen molecules combined with ultraviolet A light (PUVA) in dermatology, and techniques like photodynamic therapy (PDT) and photodetection. In recent years, the emergence of antibiotic-resistant strains, such as methicillin-resistant Staphylococcus aureus and vancomycin-resistant Enterococcus faecalis, has necessitated the exploration of alternative treatment options. Photodynamic antimicrobial chemotherapy (PACT) has arisen as …
Published in Research and Reviews : Journal of Surgery · Vol. 12, Issue 3, 2023 · pp. 1–9 Read article
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Cutting- Edge Gravitational-Wave Detectors: Technology & Innovations
Abstract: Gravitational wave detectors using laser interferometry are sophisticated instruments designed to measure the ripples in spacetime caused by cosmic events such as the merging of black holes or neutron stars. This schematic outlines the fundamental components and working principle of a typical laser interferometric gravitational wave detector, such as those used in the LIGO and Virgo observatories. The core of the detector is an interferometer, typically a Michelson interferometer, with …
Published in International Journal of Universe · Vol. 1, Issue 1, 2025 Read article
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Influence of Dielectric and Active layer Thickness on MgZnO Thin Film Transistor Electrical Characteristics
Abstract: From last decades, Thin Film Transistors Technology uses low-k dielectric material as an insulator. Insulator thickness plays an important role in device dimension. The insulating layer also known as the gate oxide separates the gate electrode from the channel region of the transistor. If the insulating layer is too thin, there is a greater chance that electrons can tunnel through the oxide layer, leading to leakage current. To mitigate this …
Published in Journal of Polymer & Composites · Vol. 11, Issue 5, 2023 · pp. 17–26 Read article
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How Optical Communication Powers the Digital World and Lights the Way
Abstract: Optical communication has become the backbone of modern digital infrastructure, allowing huge volumes of data to be sent quickly and reliably around the world. This technology is far better than standard electrical communication systems because it uses light to carry information over optical fibres. Its bandwidth is larger, signal loss is reduced, and it is resistant to electromagnetic interference. This article talks about the basic ideas behind optical communication, such …
Published in Trends in Opto-electro & Optical Communication · Vol. 16, Issue 1, 2026 · pp. 15–21 Read article
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When Light Talks The Realm of Opto-Electronic Communication
Abstract: The basic principles of opto-electronics systems are discussed. In these systems the electrical signals are changed to optical signals for high speed and long distance communication and then converted back to electrical form at the receiver. This study underscores the essential elements including light sources, optical fibres, modulators, and photodetectors that facilitate the effective transmission of information with less loss and interference. The paper also discusses the benefits of opto-electronic …
Published in Trends in Opto-electro & Optical Communication · Vol. 16, Issue 1, 2026 · pp. 1–14 Read article
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Study of Nano Germanium and Composited Forms
Abstract: This article has reviewed refinement synergism to same as earlier bulk semi-conduction. Colloidal 5 nm suspension from photolysis and pyrolysis for aerogel of II-VI quantum dots has subsidized extinction contour of semiconductor nano-crystal. Thereby transitional has accused between 0.6 to 5 eV to access from size-dependent optical and electrical effect instead of precipitation technique. Structure-oriented electronic and optical property has relevance to nano-semiconductor preparation method synergistic to earlier bulk. Nano-crystals …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 8, Issue 2, 2021 · pp. 8–15 Read article
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Analysis of M-ary Signaling for Weak Turbulence Regime in FSO Communication System
Abstract: Abstract: The need for high data rate LOS communication is accomplished using the Free Space Optical communication. Being a very cost-effective approach, it contributes to the easy set-up and deployment of point to point terrestrial link. It transmits the light signal in free space channel (air, vacuum etc.) using LASERs or LEDs and received via photodetector. In this paper, the channel is modelled using Lognormal turbulence model. This channel model …
Published in Trends in Opto-electro & Optical Communication · Vol. 9, Issue 1, 2019 · pp. 24–31 Read article
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Li-Fi’s Marketplace in the Future
Abstract: In this work, we are describing our project on the Li-Fi system. The full form of Li-Fi is “light fidelity”. It is the forerunner of Wi-Fi. Li-Fi is a type of data transmission technology that will be used in the future because of its causes and benefits. Wi-Fi and Li-Fi are not similar to each other. There are many differences between them in every aspect. In terms of speed, Li-Fi …
Published in Journal of Communication Engineering & Systems · Vol. 12, Issue 3, 2022 · pp. 1–5 Read article