Results 41 to 50 of about 6,284,830 (398)

Double-absorber thin-film solar cell with 34% efficiency [PDF]

open access: yesAppl. Phys. Lett. 117, 033901 (2020), 2020
Power-conversion efficiency is a critical factor for the wider adoption of solar-cell modules. Thin-film solar cells are cheap and easy to manufacture, but their efficiencies are low compared to crystalline-silicon solar cells and need to be improved. A thin-film solar cell with two absorber layers (instead of only one), with bandgap energy graded in ...
arxiv   +1 more source

Thickness and dielectric constant determination of thin dielectric layers [PDF]

open access: yes, 1993
We derive a method for the determination of the dielectric constant and thickness of a thin dielectric layer, deposited on top of a thick dielectric layer which is in turn present on a metal film.
de Bruijn, H.E.   +4 more
core   +3 more sources

Thin-layer chromatography of ceramides [PDF]

open access: yesJournal of Lipid Research, 1971
Ceramides with mono-, di-, and trihydroxy long-chain bases, and normal (saturated and unsaturated), branched-chain, and 2-hydroxy fatty acids have been analyzed by thin-layer chromatography. In most cases the compounds were also run as acetates. Borate, arsenite, and silver ions were used as complexing agents, and the effects of number, position, and ...
Irmin Pascher, Karl-Anders Karlsson
openaire   +3 more sources

Buffer-Enhanced Electrical-Pulse-Induced-Resistive Memory Effect in Thin Film Perovskites [PDF]

open access: yesJapanese Journal of Applied Physics, 45(3A) 1602 (2006), 2005
A multilayer perovskite thin film resistive memory device has been developed comprised of: a Pr0.7Ca0.3MnO3 (PCMO) perovskite oxide epitaxial layer on a YBCO bottom thin film electrode; a thin yttria stabilized zirconia (YSZ) buffer layer grown on the PCMO layer, and a gold thin film top electrode.
arxiv   +1 more source

Confined Synthesis of Two-Dimensional Covalent Organic Framework Thin Films within Superspreading Water Layer.

open access: yesJournal of the American Chemical Society, 2018
The confined synthesis of two-dimensional covalent organic framework (2D COF) thin films was developed by using thin superspreading water on the hydrogel immersed under oil as reactor. Through loading two monomers into oil and hydrogel, respectively, COF
Qing Hao   +7 more
semanticscholar   +1 more source

Thin‐Layer Chromatography [PDF]

open access: yesCurrent Protocols in Nucleic Acid Chemistry, 2000
AbstractTLC is used extensively in nucleic acid chemistry to monitor the progress of chemical reactions, to assay fractions collected from a larger chromatographic separation (e.g., column chromatography), and to determine optimal conditions prior to column chromatography.
openaire   +6 more sources

Delamination of compressed thin layers at corners [PDF]

open access: yesInternational Journal of Solids and Structures, 2008
AbstractAn analysis of delamination for a thin elastic layer under compression, attached to a substrate at a corner is carried out. The analysis is performed by combining results from interface fracture mechanics and the theory of thin shells.
Jensen, Henrik Myhre   +2 more
openaire   +6 more sources

Electrohydrodynamic, oven and natural drying of mint leaves and effects on the physiochemical indices of the leaves

open access: yesResearch in Agricultural Engineering, 2020
Electrohydrodynamics (EHD) enhanced the thin-layer drying of mint (Mentha Spicata Huds) leaves using multiple point-to-plate electrodes. Its configurations were carried out under DC high voltage and its effects were compared to oven drying at 40 °C and ...
Ali Esehaghbeygi, Zahra Karimi
doaj   +1 more source

Characteristics of thin-layer infrared drying of green bean

open access: yes, 2016
Doymaz I., Kipcak A.S., Piskin S. (2015): Characteristics of thin-layer infrared drying of green bean. Czech J. Food Sci., 33: 83–90. The effect of infrared (IR) power on drying kinetics, rehydration, and colour of green beans was investigated.
I. Doymaz, A. Kıpçak, S. Pişkin
semanticscholar   +1 more source

A Hybrid Method Applied to Improve the Efficiency of Full-Waveform Inversion for Pavement Characterization

open access: yesSensors, 2018
Ground penetrating radar (GPR), as a nondestructive testing tool, is suitable for estimating the thickness and permittivity of layers within the pavement. However, it would become problematic when the layer is thin with respect to the probing pulse width,
Jingwei Zhang   +5 more
doaj   +1 more source

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