Topic
Evaporation (deposition)
About: Evaporation (deposition) is a research topic. Over the lifetime, 12987 publications have been published within this topic receiving 180073 citations.
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IBM1
451 citations
TL;DR: A facile solution synthesis of stoichiometric Cu(2)ZnSnS(4) in size-controlled nanorod form (11 nm × 35 nm), which has a band gap of 1.43 eV and can be assembled into perpendicular aligned arrays by controlled evaporation from solution.
Abstract: The quaternary copper chalcogenide Cu2ZnSnS4 is an important emerging material for the development of low-cost and sustainable solar cells. Here we report a facile solution synthesis of stoichiometric Cu2ZnSnS4 in size-controlled nanorod form (11 nm × 35 nm). The monodisperse nanorods have a band gap of 1.43 eV and can be assembled into perpendicularly aligned arrays by controlled evaporation from solution.
380 citations
TL;DR: In this article, thin films of YBa2 Cu3 O7−x have been grown epitaxially in c-axis orientation on 〈100〉 SrTiO3 by pulsed excimer laser evaporation from a stoichiometric 1 −2 −3 target.
Abstract: Thin films of YBa2 Cu3 O7−x have been grown epitaxially in c‐axis orientation on 〈100〉 SrTiO3 by pulsed excimer laser evaporation from a stoichiometric 1‐2‐3 target. The substrate temperature was adjusted between 720 and 780 °C, and the oxygen partial pressure during the deposition was chosen in the range 0.1–0.3 mbar. Cooled to ambient temperature in situ for 1 h in flowing oxygen gas, the films showed complete diamagnetism and zero resistance at 90 K with a transition width of 2 K. Critical current densities of 2.2×106 A/cm2 in zero magnetic field and 1.5×105 A/cm2 at 2 T were measured at 77 K. The resistivity at 100 K was about 60 μΩ cm.
379 citations
TL;DR: In this paper, a semi-quantitative explanation of the liquid-like behavior of the initial metal nuclei is given in terms of the surface diffusion of the metal atoms over the metal islands, the driving force for the mass transfer being the associated reduction in surface energy.
Abstract: Single crystal films of gold and silver have been prepared by evaporation onto molybdenum disulphide inside an electron microscope, in order to allow direct observation of the mode of growth. These experiments provide detailed information on the remarkable liquid-like behaviour of the coalescence of the initial metal nuclei, and the mode of formation of a continuous film. In addition, re-orientation and re-crystallization phenomena are observed, and these effects are shown to be predominant during the growth of a polycrystal-line deposit on an amorphous substrate. The various possible mechanisms for the liquid-like behaviour are considered, by making use of mathematical expressions initially derived to describe the sintering of spherical particles. A semi-quantitative explanation of the liquid-like behaviour is given in terms of the surface diffusion of the metal atoms over the metal islands, the driving force for the mass transfer being the associated reduction in surface energy.
371 citations
TL;DR: In this article, a large-scale synthesis of silicon nanowires (SiNWs) using a simple but effective approach was reported, where high purity SiNWs of uniform diameters around 15 nm were obtained by sublimating a hot-pressed silicon powder target at 1200 °C in a flowing carrier gas environment.
Abstract: We report the large-scale synthesis of silicon nanowires (SiNWs) using a simple but effective approach. High purity SiNWs of uniform diameters around 15 nm were obtained by sublimating a hot-pressed silicon powder target at 1200 °C in a flowing carrier gas environment. The SiNWs emit stable blue light which seems unrelated to quantum confinement, but related to an amorphous overcoating layer of silicon oxide. Our approach can be used, in principle, as a general method for synthesis of other one-dimensional semiconducting, or conducting nanowires.
362 citations