Search Results - "extraction efficiency"

We systemically investigated the influence of sidewall morphology change based on TMAH etching on the optical performance of mini-LEDs. The dominant feature of prism structures on the sidewall of mini-LEDs with TMAH etching treatment varied from inhomogeneous to homogeneous as the TMAH etching time...

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Ruderal plants constitute a promising source of bioactive compounds with nutraceutical and therapeutic potential. In this study, we evaluated the influence of extraction method, geographic origin, and temporal factors on the chemical profile of Cosmos bipinnatus flowers collected from three high val...

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Fabricating the nanowire ultraviolet light emitting diodes (UV LEDs) has been a promising candidate to dramatically enhance the external quantum efficiency (EQE) of UV LEDs. For a great luminescent performance, it is necessary to understand the propagating features of light inside the nanowire. The...

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Abstract Graptophyllum pictum, commonly known as daun wungu, is a medicinal plant rich in bioactive compounds with antioxidant properties. This study evaluated the effects of three extraction methods—continuous shaking extraction (CSE), microwave-assisted extraction (MAE), and ultrasonic-assisted ex...

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This study investigates the impact of varying concentrations of potassium hydroxide (KOH) and sodium hydroxide (NaOH), along with anti-caking agents, on the quality of carrageenan extracted from Eucheuma cottonii seaweed. FTIR analysis revealed that KOH-extracted carrageenan retained key functional...

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Photonic crystals (PhCs), as a type of metamaterial, have attracted significant attention due to their ability to control light propagation to enhance the light extraction efficiency (LEE) of Micro-LEDs. However, the current advancements in improving the LEE of Micro-LED with PhCs are far from 100&a...

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This study investigates polarization-dependent light extraction efficiency (<italic>&#x03B7;</italic>_extraction) of AlGaN-based flip-chip ultraviolet (UV) light-emitting diodes (LEDs) emitting at 230 nm and 280&#x00A0;nm with microdome-shaped patterning on...

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Whole blood, swab, and plasma samples are widely used in molecular biology testing in Vietnam. However, most DNA extraction kits currently in use are imported and rely on silica column technology, which can be challenging to integrate into automated or high-throughput workflows. To address this lim...

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Whole blood, swab, and plasma samples are widely used in molecular biology testing in Vietnam. However, most DNA extraction kits currently in use are imported and rely on silica column technology, which can be challenging to integrate into automated or high-throughput workflows. To address this lim...

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Amylases are one of the most essential and widely used enzymes in a number of industries, including food, fermentation, paper, textile and pharmaceutical. The industrial production of enzyme amylase is carried out using two methods which are submerged fermentation and solid-state fermentation. The i...

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AlGaN alloys have been widely used to make ultraviolet light-emitting diodes (UV-LEDs) because its energy bandgap covers 200&#x2013;360&#x00A0;nm wavelength range. However, AlGaN shows strong transverse magnetic polarization in deep UV range, which severely prevents light extraction from top...

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This study is the first application of a combined sonication and enzyme extraction technique as green technology to recover biological compounds from the peel of red-fleshed dragon fruit, utilizing Response Surface Methodology (RSM) and Artificial Neural Network-Genetic Algorithm (ANN-GA). The peel...

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We conducted a systematic investigation of the light extraction efficiency (LEE) of GaN-based vertical micro-scale light-emitting diode (&#x03BC;-LED) structures using three-dimensional finite-difference time-domain (FDTD) simulations. The LEE of &#x03BC;-LED structures was found to have a s...

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In this paper, we investigate the effect of omni-directional reflectors (ODRs) on the light extraction efficiency (LEE) for flip-chip near-ultraviolet light-emitting diodes (LEDs) on patterned (PSS) and flat sapphire substrate (FSS) using three-dimensional finite-difference time-domain method. Diffe...

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GAGG:Ce scintillation crystal has a wide application prospect in the field of energy spectrum detection, due to its high density, high light yield, radiation resistance and non-deliquination characteristics. The performance of the GAGG:Ce scintillator detector is limited, especially its energy resol...

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The effects of 2-D hexagonal-lattice TiO ₂ photonic crystal layers on the directional light extraction efficiency of low-scattering (Y _1-xCe _x) ₃Al ₅O ₁₂ (YAG:Ce...

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An inclined sidewall scattering structure with air cavity characterized by a metal bottom and flat parallel top (Bottom_metal) is proposed to enhance the light extraction efficiency (LEE) for AlGaN-based deep ultraviolet light-emitting diodes (DUV LEDs). Compared to the reported sidewall metal incli...

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In this work, we investigate the effect of sidewall angle, height and space of an air cavity extractor (AC-Extractor) on the polarization-dependent light extraction efficiency (LEE) for AlGaN-based deep-ultraviolet light-emitting diodes (DUV LEDs) using three-dimensional finite difference time-domai...

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People have long been interested in plants rich in secondary metabolites and have tried to isolate them outside the plants. Purple coneflower is a crucial medicinal plant, known for its broad spectrum of bioactive substances. The type of solvent and the duration of maceration had an important impact...

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Large-scale two-dimensional air-gap photonic crystals (PhCs) were embedded in an n-type GaN layer to enhance the light emission of GaN-based light-emitting diodes (LEDs). The embedded-PhCs were obtained through overgrowth on n-GaN templates, which had air holes array previously fabricated by using n...

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