The cover photo describing the crystal structure of Na5YSi4O12 with glass-ceramic Na+ superionic conductors. As discussed by Toshinori Okura, these glass-ceramic conductors have great potential and are one of the most important groups of solid electrolytes, not only because of its practical usefulness for advanced batteries but also for its three-dimensional ionic conducting nature.
Increasing the efficiency of graphene-based Schottky-barrier devices
Shuo-En Wu, Ya-Ping Hsieh*
Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 11617, Taiwan
Adv. Mater. Lett., 2019, 10 (2), pp 132-135
DOI: 10.5185/amlett.2019.2183
Publication Date (Web): Dec 19, 2018
Copyright © 2019 VBRI Press
E-mail: yphsieh@gate.sinica.edu.tw
Graphene’s high carrier mobility and ambipolar nature has the potential to improve electronic devices. The absence of a band-gap necessitates heterostructure devices. Schottky-barrier devices consisting of an interface between graphene and a semiconductor represent the simplest heterostructure. Despite its simplicity, graphene-based Schottky barrier devices are not well understood and exhibit low injection efficiencies. We here investigate the impact of graphene/metal interaction on the properties of the Schottky-barrier. Besides the commonly employed Au/graphene we use Pt/graphene contacts. We find that the injection efficiency for Pt is 5x higher than for Au and systematically study the origin of this behavior. We identify a large difference in Richardson’s constant due to changes in the density of surface states. The demonstrated ability to increase the injection current was applied to improve the efficiency of graphene-based Schottky solar cells by 13x.
Current Global Scenario of Electric Vehicles
Review on Detection of Phenol in Water
Investigating the Machinability of Metallic Matrix Composites Reinforced by Carbon Nanotubes: A Review
Photocatalytic ZnO based PES Membranes for AOP Water Treatments under UV and Sunlight
Plasma Activated Water as a Source of Nitrogen for Algae Growth
Digital Light Processing (DLP) 3D Printing of Polyethylene Glycol (PEG) Biopolymer, Commercially available Ultra-High and Tough (UHT) Resin and Maghemite (γ-Fe2O3) Nanoparticles Mixture for Tissue Engineering Scaffold Application
Fabrication of Nanoparticle Embedded Polymeric Microbeads as an Efficient Drug Delivery System
Micro/Nanostructured Papers from Bagasse Pulp Reinforced by Nanofibrillated Cellulose from different Agro-Waste Sources
Structural, Optical and Magnetic Properties of Pristine, (Mn, Al) co-doped ZnO Nanocrystallites Synthesized via co-Precipitation Method
Nanosecond Laser Surface Patterning of Ti6Al4V Bio-alloy for Improved Biological Performance
Synthesis of Cu2O/Ag Composite Nanocubes with Promising Photoluminescence and Photodegradation Activity over Methylene Blue Dye
Locally available Clays of Bangladesh as a Replacement of imported Clays for Ceramic Industries
Green Synthesis and Characterization of Silver Nanoparticles using Cassia auriculata Leaves Extract and Its Efficacy as A Potential Antibacterial and Cytotoxic Effect
Wearable Healthcare Devices
Nano-Graphene and Its Derivatives for Fabrication of Flexible Electronic Devices: A Quick Review
Natural Fibers as Viable Sources for the Development of Structural, Semi-Structural, and Technological Materials – A Review
Geometrical Characterization of Wire-and-Arc Additive Manufactured Steel Element
Plasma Activated Water Generation and its Application in Agriculture
Development of Advanced Electrode Materials on Porous Silicon for Micropower Formic Acid-Oxygen Fuel Cells
Water Management within Tragacanth gum-g-polyitaconic Acid Hydrogels
Synthesis and Characterization of Humic Acid-coated Fe3O4 Nanoparticles for Methylene Blue Adsorption Activity
Synthesis and characterization of thermally stable flame retardant thermoplastic polyphosphazenes
Synthesis of Rod-coil Molecules bearing Oligo-Phenylene Vinylene Motifs: Effect of PEO Chain Lengths on the Evolution of Nanostructures Morphology and their Photophysical Properties
Dielectric Properties of Cu based Polymeric Composites in X-band of Microwave Frequency
Critical Association Concentration of Dansyl-Poly (acrylic acid) Synthetized by Redox Polymerization Followed by an Esterification in Aqueous Solution: Spectrophotometric and Tensiometric Studies
Influence of Iron Doping on Structural and Optical Properties of Nickel Oxide Nanoparticles
Copyright ©2010-2019 VBRI Press
Full Article