visible light-emitting diodes
Communication Networks of Visible Light Emitting Diodes with Intra-Frame Bidirectional Transmission
... In this paper, we presented the design, implementation, and performance evaluation of the CSMA/CD-HA protocol for communication networks using visible light. By exploit- ing the OOK modulation used in VLC ...
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WATER DISINFECTION USING ULTRAVIOLET-A AND VISIBLE LIGHT-EMITTING DIODES
... 149 | P a g e Treatment of water sample having a depth of 0.75 cm by using UV-A LEDs and White LEDs achieved a 4 log reduction in faecal coliforms within 5 hours. Treatment using Blue LEDs also showed 3.36 log reduction ...
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Light emitting diodes enhanced by localized surface plasmon resonance
... laser diodes are promising light sources to gen- erate SP in these optoelectronic chips because of the low cost, ease of integration into traditional integrated circuit technologies, and large-area ...the ...
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Recent advances in light outcoupling from white organic light emitting diodes
... OLEDs, light was emitted by relatively simple fluorescent compounds that were often derived from commonly used laser ...of light, have been ...the visible spectrum, including fairly saturated blues, ...
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Multispectral time-of-flight imaging using light-emitting diodes
... more light in the expected channels, such as the intense reflection of red (659 - 623 nm) light by the bricks at the wall edge ...although visible, is difficult to make out due to glare from the ...
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Influence of indium-tin-oxide and emitting-layer thicknesses on light outcoupling of perovskite light-emitting diodes
... perovskite light-emitting diodes (PeLEDs) are emerging as a promising option for next-generation flexible displays and lighting applications due to their outstanding optoelectrical characteristics, ...
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Determination of Planck’s Constant using Light Emitting Diodes
... Consider an electron in the Bohr orbit of a hy- drogen atom and its interaction with electro- magnetic radiation especially visible light wave. It’s clear that an electron in a particular state at time t = ...
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Investigation of Nanoscale Photonic Crystal Arrays on Gallium Nitride Blue Light emitting Diodes
... based light- emitting diodes (LED) have been gradually adopted as solid lighting sources ...the light extraction efficiency of light-emitting diodes, and the photonic ...
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Title: AN OVERVIEW OF VISIBLE LIGHT COMMUNICATION SYSTEMS
... Abstract— Visible light communication technology similar to wireless routers will enter our lives and complement the existing RF technology ...of visible light communication technology which ...
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Solvent immersion nanoimprint lithography of fluorescent conjugated polymers
... semiconducting light-emitting polymers make them attractive materials for inexpensive photonic and optoe- lectronic ...organic light-emitting diodes (OLEDs), 1,2 ...
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Substrate Free InGaN/GaN Nanowire Light Emitting Diodes
... The first demonstration of nanowire flexible LEDs has been done using ZnO nanowires grown in solution on plastic substrate [14] demonstrating the electrolumines- cence in the visible range. However, the direct ...
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AlGaInP light emitting diodes with SACNTs as current spreading layer
... of light- emitting diodes (LEDs) ...of visible wavelength LEDs as the current-spreading layer owing to its good physical proper- ties of high optical transmittance and low sheet resistance ...
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Enhanced light emission from top emitting organic light emitting diodes by optimizing surface plasmon polariton losses
... Furthermore, we have found that the combination of the opaque aluminum anode and the proposed low refractive index HTL produces an oSPP resonance propagating as a nonevanescent plane wave within the layers of the optical ...
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The Reflected-Shifted-Truncated-Gamma Distribution for Negatively Skewed Survival Data with Application to Pediatric Nephrotic Syndrome
... performance visible LEDs are already being used in many appli- cations such as, solid-state full color display, residential, commercial and automotive ...As visible LED technology was reaching its maturity, ...
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A Review On Data Transmission Through Illumination
... future, light fidelity (Li-Fi) technology came into existence since year ...which light is used as a carrier signal instead of conventional ...uses light emitting diodes to transmit ...
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Measuring and structuring the spatial coherence length of organic light emitting diodes
... Organic light-emitting diode (OLED) technology has at- tracted great attention due to its promising applications in lighting and displays ...in visible-light communication and biomedical ...
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Light-Emitting Diodes in the Solid-State Lighting Systems
... fact, visible and infrared LEDs were extremely costly until, in 1968, Monsanto Company organized a mass-production of visible LEDs for indicators, using gallium arsenide phosphide (GaAsP) ...the ...
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Theoretical Studies on Light- Emitting Diodes : A Review
... and light. In germanium and silicon diodes, almost the entire energy is given up in the form of heat and emitted light is ...of light energy is sufficient to produce quite intense ...
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Efficacy of Red or Infrared Light-Emitting Diodes in a
... Tissue samples of mice were taken 2 weeks after P . acnes injection. Eight tissue samples were collected from group A, 6 tissue samples from group B, and 6 tissue samples from group C. Paraffin-embedded tissue sections ...
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Synthesis And Characterization of Zno-Nanorods By Sol-Gel Method For White Led Phosphors
... The Znonanorods phosphors coated on a commercially available blue LED. The 480nm emissions of blue LED act as the excitation source for Znonanorods phosphors. The electroluminescence measurements carried out for white ...
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