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Showing 1 to 10 of 10 for “"sequential deposition"”.
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Characterization of industrially processed chalcopyrite solar cells with varied absorber composition
… processing technologies. In samples from (1) the sequential deposition-reaction process the sulfur composition of the annealing atmosphere was varied in order to realize a double band gap grading. (2) Devices from different co-evaporation chambers processed under nominal equal conditions yielded …
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Effects of AG on structural and magnetic properties of FePt thin films
… FePt thin films by cosputtering and sequential sputtering. Cosputtered with Ag, FePt grain size and magnetic exchange coupling were reduced with increasing Ag content. A study on alloying of FePt-Ag indicated that most Ag atoms formed a separate phase from FePt. The coercivity …
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Nanoscale Study of Perovskite Solar Cells for Efficient Charge Transport
… the grains of pervoskite films prepared by sequential deposition technique. Grain boundary potential of perovskite films exhibited variation in electrical properties with humidity level, temperature and water concentration in methyl ammonium iodide solution. X-ray diffraction (XRD) indicates …
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Solar energy conversion via photovoltaics and photocatalysis
… by using oCVD (Oxidative Chemical Vapor Deposition) polymers and doping-treated bismuth vanadate (BiVO 4), respectively. oCVD is a solvent-free conformal vacuum-based technique to enable thin-film fabrication of insoluble polymers at moderate vacuum (~ 0.1 Torr) and low temperature (25 …
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Oxidative chemical vapor deposition of semiconducting polymers and their use In organic photovoltaics
… we explore the use of oxidative chemical vapor deposition (oCVD), a vacuum-based method, for the deposition of semiconducting polymers. Polymer deposition by oCVD occurs at moderate vacuum (~0.1 Torr) and low temperature (25 - 150°C). oCVD offers the well-cited processing benefits of vacuum …
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Polymers via chemical vapor deposition and their application to organic photovoltaics
… Here, we explore oxidative chemical vapor deposition (oCVD) as an all-dry, vacuum-based method for processing conjugated polymer device layers for organic photovoltaics. The entire process occurs via the vapor phase and under conditions of low temperature and low energy input, enabling …
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Laboratory Studies of Gas-Grain Processes on Cosmic Dust Analogues
… via the oxidation of ammonia is studied by sequential deposition of ammonia and atomic oxygen and is followed by temperature programmed desorption experiments. The measured high reaction efficiency predicts that ammonia oxidation on grain surfaces could be an important route to hydroxylamine …
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Ultrafast Spectroscopic Studies of Solution-Processing Organic Photovoltaic Materials and Devices
… and used materials. Finally, a new method ‘via sequential deposition’ is demonstrated for fabrication of efficient NFA-based devices. We discuss the properties of OSCs fabricated by this method and the potential for its commercialisation.
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Caratterizzazione di membrane metalliche e ionomeriche per applicazioni energetiche
… on porous ceramic support via electroless deposition (ELD), solubility and diffusivity analysis of hydrogen in palladium based alloys (temperature range between 200 and 400 °C up to 12 bar of pressure) and permeation experiments of pure hydrogen and mixtures containing, besides hydrogen, …
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Functional organic thin films under extreme confinement
… parameters. Moreover, we also performed sequential deposition of multiple components in a layer-by-layer manner by utilizing the same approach. Interestingly, we also observed trapping and stabilization of metastable polymorphs of API when coated under highly non-equilibrium conditions. …