External quantum efficiency
External Quantum Efficiency Improvement with Luminescent Downshifting Layers: Experimental and Modelling
... Core-shell quantum dots CdSe/ZnS and lumogen yellow organic dye are characterized by their inclusion in luminescent downshifting (LDS) ...minimodules. External quantum efficiency measurements ...
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Influence of the donor doping density in CdS and Zn(O,S) buffer layers on the external quantum efficiency of Cu(In,Ga)Se2 thin film solar cell
... the quantum efficiency of the cell with a Zn(O, S) buffer layer we have a broader ...363nm quantum efficiency remains low because these wavelengths correspond to the incidental photons of ...
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External quantum efficiency response of thin silicon solar cell based on plasmonic scattering of indium and silver nanoparticles
... To characterize the external quantum efficiency (EQE) response of thin silicon solar cells, the samples were la- beled A, B, C, and D. Sample A had a 300-nm-thick Al film deposited on the rear ...
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Optimal Silicon Doping Layers of Quantum Barriers in the Growth Sequence Forming Soft Confinement Potential of Eight Period In0 2Ga0 8N/GaN Quantum Wells of Blue LEDs
... solid-phase miscibility gap of GaN and InN. The forma- tion of In-rich clusters could act as strong carrier localiza- tions, preventing the traps of nonradiative recombination centers (NRCs) and facilitating the ...
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Investigating Scaling Effects on The Static Characteristics of Long-Wavelength Vertical Cavity Lasers (VCSELs)
... Abstract — In this paper, the characteristics of long- wavelength vertical-cavity surface-emitting laser (VCS EL) lasing at 1550 nm have been studied based on the influence of the oxide aperture radius. Using the oxide ...
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Optoelectronic Evaluation and Loss Analysis of PEDOT:PSS/Si Hybrid Heterojunction Solar Cells
... high efficiency and low ...current efficiency is still much worse than commercially available Si solar ...and external quantum efficiency (EQE) match well with the experimental results ...
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Nearly Efficiency Droop Free AlGaN Based Ultraviolet Light Emitting Diodes with a Specifically Designed Superlattice p Type Electron Blocking Layer for High Mg Doping Efficiency
... the external quantum efficiency (EQE) for AlGaN-based DUV LEDs with the emission wavelength shorter than 280 nm is not satisfied at this moment ...
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Investigation of GaInAs strain reducing layer combined with InAs quantum dots embedded in Ga(In)As subcell of triple junction GaInP/Ga(In)As/Ge solar cell
... rated on the front surface of the cells forming the front- side passivation of the top cell to improve the spectral response. All the solar cells were isolated by a chemical etch. The InAs QD densities and morphologies ...
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Improved Efficiency of Silicon Nanoholes/Gold Nanoparticles/Organic Hybrid Solar Cells via Localized Surface Plasmon Resonance
... The external quantum efficiency (EQE) values of the solar cells with AuNPS are higher than that of the samples without AuNPS in the spectral region of 600 – 1000 nm, which were essential to achieve ...
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Novel materials and optical waveguide systems for silicon photonics
... their external quantum efficiency ...These external quantum efficiency values are very promising and make SiOC a very interesting material for LED ...
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Radial n i p structure SiNW based microcrystalline silicon thin film solar cells on flexible stainless steel
... conversion efficiency of ...conversion efficiency of 2.25%. The external quantum efficiency measurements show that the external quantum efficiency response of SiNW ...
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Influence of Quantum Well Width on the Electroluminescence Properties of AlGaN Deep Ultraviolet Light Emitting Diodes at Different Temperatures
... growth [1]. Their results contributed to the understand- ing of the AlN homoepitaxy mechanism and provided the critical techniques for improving the crystal quality. In addition, many methods were proposed to improve the ...
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Optical and Mechanical Characterization of InAs/GaAs Quantum Dot Solar Cells
... Left: External quantum efficiency measurements for the three QD and the baseline/control GaAs p-i-n solar cell devices, indicating no significant degradation in the bulk GaAs absorption wavelengths ...
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Enhancement of InGaN Based Light Emitting Diodes Performance Grown on Cone Shaped Pattern Sapphire Substrates
... The external quantum efficiency (EQE) of the InGaN-based LED is still not large enough compared with the expected ...internal quantum efficiency (IQE) and the light extraction ...
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Influence of indium-tin-oxide and emitting-layer thicknesses on light outcoupling of perovskite light-emitting diodes
... result, external quantum efficiency (EQE) as high as 20% has been achieved in PeLEDs in contrast to the first PeLED in 2014, which had less than 1% efficiency [3, 17– ...
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Quantum Wells to Improve the Performance of III/V Multi-junction Solar Cells.
... matched, inverted-metamorphic, or wafer-bonded structures. The objective of creating this structure is to maximize the number of QWs that can be included in the depletion region for improved solar cell absorption beyond ...
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A Comprehensive Study of One Step Selenization Process for Cu(In1−x Gax )Se2 Thin Film Solar Cells
... The external quantum efficiency (EQE) of devices was measured by a 300-W xenon lamp (Newport 66984) light source with a monochromator (Newprot ...
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Work Done on a Coherently Driven Quantum System
... where ˆ ( ) η is the total Hamiltonian and η ( ) t , the control protocol. Δ F = F ( η ( ) t ) − F ( η ( ) 0 ) is the free energy difference between a reference equilibrium state of the system and a state achieved at ...
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Quantum spin dynamics in external classical fields
... Let x i = (t, x a ) be the local coordinates on the spacetime manifold. To study the dy- namics of a spinning particle in an arbitrary external fields, one should choose a convenient parametrization of the ...
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Quantum Computing Technology (QCT) - A Data Security Threat
... of quantum computation in 1982 when he commented on the difficulty of simulating quantum ...a quantum system - calculations and simulations of more than two atoms can only be ...approximates ...
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