Institution
King Saud University
Education•Riyadh, Saudi Arabia•
About: King Saud University is a education organization based out in Riyadh, Saudi Arabia. It is known for research contribution in the topics: Population & Adsorption. The organization has 22106 authors who have published 57908 publications receiving 1042234 citations. The organization is also known as: Riyadh University.
Topics: Population, Adsorption, Medicine, Catalysis, Oxidative stress
Papers published on a yearly basis
Papers
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TL;DR: This paper summarizes and critically assesses the current studies focusing on adverse effects of Ag NPs on human health and the mechanisms for Ag NP induced toxicity include the effects of this particle on cell membranes, mitochondria and genetic material.
1,118 citations
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TL;DR: The creation of van der Waals metal–semiconductor junctions is reported, in which atomically flat metal thin films are laminated onto two-dimensional semiconductors without direct chemical bonding, creating an interface that is essentially free from chemical disorder and Fermi-level pinning.
Abstract: The junctions formed at the contact between metallic electrodes and semiconductor materials are crucial components of electronic and optoelectronic devices 1 . Metal-semiconductor junctions are characterized by an energy barrier known as the Schottky barrier, whose height can, in the ideal case, be predicted by the Schottky-Mott rule2-4 on the basis of the relative alignment of energy levels. Such ideal physics has rarely been experimentally realized, however, because of the inevitable chemical disorder and Fermi-level pinning at typical metal-semiconductor interfaces2,5-12. Here we report the creation of van der Waals metal-semiconductor junctions in which atomically flat metal thin films are laminated onto two-dimensional semiconductors without direct chemical bonding, creating an interface that is essentially free from chemical disorder and Fermi-level pinning. The Schottky barrier height, which approaches the Schottky-Mott limit, is dictated by the work function of the metal and is thus highly tunable. By transferring metal films (silver or platinum) with a work function that matches the conduction band or valence band edges of molybdenum sulfide, we achieve transistors with a two-terminal electron mobility at room temperature of 260 centimetres squared per volt per second and a hole mobility of 175 centimetres squared per volt per second. Furthermore, by using asymmetric contact pairs with different work functions, we demonstrate a silver/molybdenum sulfide/platinum photodiode with an open-circuit voltage of 1.02 volts. Our study not only experimentally validates the fundamental limit of ideal metal-semiconductor junctions but also defines a highly efficient and damage-free strategy for metal integration that could be used in high-performance electronics and optoelectronics.
1,116 citations
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TL;DR: Microalgae cultures offer an elegant solution to tertiary and quandary treatments due to the ability of microalgae to use inorganic nitrogen and phosphorus for their growth, therefore, it does not lead to secondary pollution.
1,109 citations
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TL;DR: In this article, a three-dimensional (3D) holey-graphene/niobia (Nb2O5) composite for ultra-high-rate energy storage at high mass loading was proposed.
Abstract: Nanostructured materials have shown extraordinary promise for electrochemical energy storage but are usually limited to electrodes with rather low mass loading (~1 milligram per square centimeter) because of the increasing ion diffusion limitations in thicker electrodes. We report the design of a three-dimensional (3D) holey-graphene/niobia (Nb2O5) composite for ultrahigh-rate energy storage at practical levels of mass loading (>10 milligrams per square centimeter). The highly interconnected graphene network in the 3D architecture provides excellent electron transport properties, and its hierarchical porous structure facilitates rapid ion transport. By systematically tailoring the porosity in the holey graphene backbone, charge transport in the composite architecture is optimized to deliver high areal capacity and high-rate capability at high mass loading, which represents a critical step forward toward practical applications.
1,099 citations
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TL;DR: In this paper, the authors provide an overview of the electrospinning (applied electric field, distance between the needle and collector and flow rate, needle diameter), solution (polymer concentration, viscosity, solvent and solution conductivity) and environmental (relativity humidity and temperature) parameters that affect the nanofibers fabrication.
1,071 citations
Authors
Showing all 22392 results
Name | H-index | Papers | Citations |
---|---|---|---|
George P. Chrousos | 169 | 1612 | 120752 |
David W. Bates | 159 | 1239 | 116698 |
Herbert W. Marsh | 152 | 646 | 89512 |
David J.P. Barker | 148 | 446 | 99373 |
Seeram Ramakrishna | 147 | 1552 | 99284 |
Peter J. Schwartz | 147 | 647 | 107695 |
Yu Huang | 136 | 1492 | 89209 |
Damià Barceló | 135 | 1379 | 83714 |
Claudiu T. Supuran | 134 | 1973 | 86850 |
Avelino Corma | 134 | 1049 | 89095 |
Helmut Sies | 133 | 670 | 78319 |
Luis M. Liz-Marzán | 132 | 616 | 61684 |
Meinrat O. Andreae | 131 | 700 | 72714 |
Wajid Ali Khan | 128 | 1272 | 79308 |
Paul M. Vanhoutte | 127 | 868 | 62177 |