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521
Highly efficient green InP/ZnSe/ZnS quantum dots synthesized using tris(diethylamino)phosphine
Published 2025-01-01“…Quantum dot light-emitting diodes (QLEDs) with green InP multishell QDs achieved a peak luminance of 1862.7 cd/m² and a current efficiency of 3.5 cd/A. …”
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522
High Step-Up ZVT Converter Based on Active Switched Coupled Inductors
Published 2025-01-01“…In addition, thanks to the leakage inductance, the reverse recovery problem of diodes is resolved. The working principle of the proposed converter is analyzed in detail, also the characteristics including voltage gain, the condition of ZVT is discussed. …”
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523
From source to sink: the path to efficient energy harvesting with LEDs and displays
Published 2025-02-01“…Abstract In the last three decades, light emitting diodes (LEDs) have represented a breakthrough innovation for optoelectronic applications. …”
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524
An Overview and State of The Art in Reconfigurable Antennas with Their Applications
Published 2024-01-01“…By integrating technologies like PIN diodes, MEMS, and tunable materials, reconfigurable antennas can adjust to varying environmental and operational conditions, providing enhanced performance in terms of bandwidth, efficiency, and interference mitigation. …”
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525
New structure of step-up DC-DC converter based on three winding coupled inductor with high gain capability featuring integrated renewable energy applications
Published 2024-12-01“…The converter offers several benefits, including reduced voltage stress on both power switches and diodes, a common ground, high efficiency, a simple structure and control mechanism, and fewer components. …”
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526
Estimation and Control for Industrial Products Reliability under Failure Trials
Published 2020-01-01“…The proposed reliability estimation and control approach is demonstrated using a case of light-emitting diodes under failure trials at production process. …”
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527
Double-Grating Displacement Structure for Improving the Light Extraction Efficiency of LEDs
Published 2012-01-01“…To improve the light extraction efficiency of light-emitting diodes (LEDs), grating patterns were etched on GaN and silver film surfaces. …”
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528
A low‐rating 40‐pulse AC–DC rectifier based on a new passive harmonic mitigation circuit
Published 2022-12-01“…This PHMC is based on 2 harmonic suppression circuits and contains four tapped reactor and 4 auxiliary diodes. 50 Hz simulations of the improved 40PR indicate that THD of the input current and voltage is less than 2%, which meets the IEEE‐519 standard. …”
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529
A review on conducting organic polymers: Concepts, applications, and potential environmental benefits
Published 2025-02-01“…It then provides an insight into the various applications enabled by their unique optical and electronic properties, including their use in light-emitting diodes, electrochromic displays, smart windows, fuel cells, solar cells, supercapacitors and batteries. …”
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530
Feature analysis aided design of lightweight heat sink from network structures
Published 2025-02-01“…The refined heat sink designs were successfully implemented to cool light emitting diodes (LEDs) in practical applications.…”
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531
A combined capacitor current balancing method with weighting factor control for multi‐string LED drivers
Published 2023-05-01“…Since CLL resonant converters operate at fixed resonant frequency, primary‐side MOSFETs can achieve zero voltage switching, while secondary‐side rectifier diodes achieve zero current switching. A prototype of the proposed system was constructed to verify the theoretical results by practical implementation. …”
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532
Analysis of RF Front-End Performance of Reconfigurable Antennas with RF Switches in the Far Field
Published 2014-01-01“…The RF front-end performances in the far-field condition of reconfigurable antennas employing two commonly used RF switching devices (PIN diodes and RF-MEMS switches) were compared. Two types of antennas (monopole and slot) representing general direct/coupled feed types were used for the reconfigurable antennas to compare the excited RF power to the RF switches by the reconfigurable antenna types. …”
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533
Improved Performances of a Fluidized Bed Photoreactor by a Microscale Illumination System
Published 2009-01-01“…The performances of a gas-solid two-dimensional fluidized bed reactor in photocatalytic selective oxidation reactions, irradiated with traditional UV lamps or with a microscale illumination system based on UV emitting diodes (UVA-LEDs), have been compared. In the photocatalytic oxidative dehydrogenation of cyclohexane to benzene on MoOx/TiO2-A12O3 catalyst the use of UVA-LEDs modules allowed to achieve a cyclohexane conversion and benzene yield higher than those obtained with traditional UV lamps. …”
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534
Bioinspired interfacial engineering for highly stretchable electronics
Published 2025-02-01“…Various electronic components, such as light-emitting diodes (LEDs) and solar cells, are affixed onto the flexible island, showcasing its versatility as a robust platform for rigid components while ensuring the entire substrate maintains high stretchability. …”
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535
Realization of Wireless-Controlled Gear Shifter for Shaft-Driven Bicycle Gearbox
Published 2024-12-01“…Secondly, a remote controller module with information organic light-emitting diodes (OLEDs) and shift operation buttons was developed. …”
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536
E. coli Bacteriostatic Action Using TiO2 Photocatalytic Reactions
Published 2018-01-01“…This experimental research comparatively investigates the Escherichia coli (E. coli) bacterial inactivation of the TiO2 photocatalytic thin films fabricated by the sol–gel dip-coating (SG) and low-temperature spray-coating (SP) techniques, with low-intensity (12 μW·cm−2) UVA-light-emitting diodes (UVA-LED) as the light source. The bacteriostatic experiments were undertaken using the nutrient broth (NB) and 0.85% NaCl with the initial E. coli concentrations of 102, 104, 106, and 108 CFU·mL−1. …”
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537
Improving Light Extraction of Organic Light-Emitting Devices by Attaching Nanostructures with Self-Assembled Photonic Crystal Patterns
Published 2014-01-01“…The patterned nanostructures acted as a scattering medium to extract the trapped photons from substrate mode of optical-electronic device for improving the overall external quantum efficiency of the organic light-emitting diodes (OLEDs). With an optimum latex concentration, the distribution of self-assembled polystyrene (PS) nanosphere patterns on PET films can be easily controlled by adjusting the rotation speed of spin-coater. …”
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538
Three-dimensional photoluminescence imaging of threading dislocations in GaN by sub-band optical excitation
Published 2025-01-01“…Here, we discuss a novel implementation of photoluminescence (PL) imaging to study TDs in regions within vertically structured p-i-n GaN (PIN) diodes consisting of metalorganic chemical vapor deposition (MOCVD) epitaxial layers grown on ammonothermal GaN (am-GaN) substrates. …”
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539
A Novel Design of MSM Photodetector and the Investigation of Two-Top Contacts Spacing Effects on Detection Speed and Transient Response
Published 2022-12-01“…In this paper, a novel microstructure of the Metal Semiconductor Metal photodetector consisting of an absorbing layer of semiconductor and two metal electrodes which act as two back-to-back Schottky diodes is designed and simulated. Incident light is absorbed by the active area between the two top electrodes and generates electron-hole pairs which are collected by electrodes and then an electric current is generated. …”
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540
Millimeter-wave reconfigurable antenna based on VO2 ink achieved by a simple process
Published 2025-02-01“…Nevertheless, the deployment of millimeter-wave reconfigurable antennas is impeded by the limitations of conventional switching devices like PIN diodes and varactors, which are unsuitable for millimeter-wave applications. …”
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