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Photo-Luminescent Materials: Down-Conversion, Quantum Cutting, Up-Conversion, Photo-Avalanche, Core@Shell Nanostructures
In this chapter, types of photoluminescence such as down-conversion and up-conversion processes are explained with many examples of organic,...
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Donor-acceptor bulk-heterojunction sensitizer for efficient solid-state infrared-to-visible photon up-conversion
Solid-state infrared-to-visible photon up-conversion is important for spectral-tailoring applications. However, existing up-conversion systems not...
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Polarization conversion in bottom-up grown quasi-1D fibrous red phosphorus flakes
Fibrous red phosphorus (RP) has triggered growing attention as an emerging quasi-one-dimensional (quasi-1D) van der Waals crystal recently....
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A 195–245 GHz Direct Up-Conversion Mixer with Wideband Active Balun
This paper presents a sub-Terahertz modified double-balanced Gilbert mixer in 130 nm SiGe BiCMOS process. An active transconductance balun is...
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Up-Conversion Films and Polymer Matrices with CsPbBr3 Perovskite Micro and Nanostructures
AbstractUp-conversion is a process that can be used for infrared laser visualization. Lead halide perovskite has a fine opportunity to be employed...
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Color coherence-based scene-change detection for frame rate up-conversion
Existing scene-change detection methods usually use the differences in luminance values between consecutive frames to detect scene changes....
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Light Enhancement of Green Up-Conversion Emission from Er-Doped Silica Microspheres by Carbon Quantum Dot Coatings
Combination of high quality cavity such as glass microsphere and emitting nano-particle coating layers can create novel strongly emitting devices....
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Array piezoelectric energy harvester with frequency up-conversion in rotational motions: theoretical analyses and experimental validations
Piezoelectric energy harvesters (PEHs) have attracted great attention to solve the power supply issue of wireless sensors in rotational motions. PEHs...
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CMW-UWB and MMW-UWB signal generator based on single-sideband optical up-conversion technique
A novel centimeter-wave (CMW) and millimeter-wave (MMW) ultra-wideband (UWB) signal generator based on optical up-conversion technique is presented....
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Real-time evolution of up-conversion nanocrystals from tailored metastable intermediates
In-situ observation of the growth and decomposition processes is significantly important for guiding the fabrication of up-conversion nanocrystals...
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Quantum optical tomography based on time-resolved and mode-selective single-photon detection by femtosecond up-conversion
We developed an optical time-of-flight measurement system using a time-resolved and mode-selective up-conversion single-photon detector for acquiring...
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Up-Conversion Luminescence in TbAl3(BO3)4: Yb3+ Syntesized by Solution Combustion Method
AbstractPhase pure Tb 1– x Yb x Al 3 (BO 3 ) 4 ( x = 0 – 1) crystalline powders were prepared by the combustion synthesis method. Down-conversion experiments...
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Bottom-up synthesis of 2D heterostructures enables effective polysulfides inhibition and conversion
Due to the high theoretical capacity and energy density, lithium-sulfur (Li−S) batteries have good commercial prospects. However, shuttle effect of...
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Improving PSCs’ Short-circuit Current by Adding NaErF4:0.5%Tm@NaLuF4 Up-conversion Nanoparticles Insertion Layer
I n this study, we synthesized a core-shell structure of up-conversion nanoparticles (UCNPs) and deposited it on the surface of fluorine-doped tin...
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Experimental optimization, design synthesis, and up-conversion luminescence properties of Sr2GdTaO6: Er3+/Yb3+ high color purity
Laser illumination is considered to be a revolution of new lighting technology due to its high efficiency and pure color. Similar to the white Light...
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Thermal assisted up-conversion electroluminescence in quantum dot light emitting diodes
Up-conversion electroluminescence, in which the energy of a emitted photon is higher than that of the excitation electron, is observed in quantum-dot...
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Biodegradable near-infrared-IIb lanthanide-doped inorganic nanoparticles with red up-conversion luminescence for bioimaging and photodynamic therapy
The near-infrared-II (NIR-II) lanthanide-doped inorganic nanoparticles (NPs) have received considerable attention because of their low photon...
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Down-conversion photoluminescence of Ta2O5:Ho3+ and up-conversion photoluminescence of Ta2O5:Ho3+/Yb3+ coatings formed by plasma electrolytic oxidation of tantalum
This study demonstrated that Ta 2 O 5 coatings formed by plasma electrolytic oxidation of tantalum substrate in an alkaline electrolyte containing Ho 2 O 3 ...
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Line Verification in Luminescence Spectra of Fluorophosphate Glass Doped with Ytterbium and Thulium Ions by the Degree of Nonlinearity of Up-Conversion Processes
Up-conversion luminescence (UCL) spectra of fluorophosphate glasses doped with the rare-earth ions Yb 3+ with concentrations of 4–10% and Tm 3+ with...
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Phonon-assisted up-conversion photoluminescence of quantum dots
Phonon-assisted up-conversion photoluminescence can boost energy of an emission photon to be higher than that of the excitation photon by absorbing...
