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 © IAAM-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.
Perspectives on Published Energy Sources and Smart Energy Supplies
State of Art Review on Nanobubbles
Eggshell Membrane Assisted CdS Nanoparticles for Manganese Removal in Water Treatment
Green Chemistry Synthesis of Nano-Hydroxyapatite using Natural Stabilisers
Structural, Optical and Electrical Properties of CaSnO3 and Ca0.98Nd0.02Sn0.98Ti0.02O3 Synthesized using Sol-Gel Method
Phase Change Materials Reinforced with Aluminium Foam for Latent Heat Storage
Influence of Manganese and Copper Doping on Structural and Optical Properties of Chromium Oxide Nanoparticles
Understanding of intriguing metal to semiconductor transition in Ni0.5Zn0.5Fe2O4 nanoparticulates
Flaw Resistance and Mode - I Fracture Energy Redistribution in Bamboo - A Correlation
COVID-19: A Significant Revival Approach - Concurrent Case Study in India
Recent Advances in Biochar Modification for Energy Storage in Supercapacitors: A Review
Viral Evolution of Multiple Coronavirus Genomes on Genomic Index Maps
Solution Combustion Synthesis and Energy Transfer in LaMgAl11O19:Tb3+/Sm3+ Tunable Phosphor
Influence of Fe3O4 and CTABr on the Rate of Degradation of Methylene Blue by H2O2
Effect of Sulfurization Temperature on RF Sputtered MoS2 Thin Film
Fatigue Analysis for Fe-34.5Mn-l0Al-0.76C Tidal Turbine Blades using Rainflow Algorithm
Modelling for the Study of Thermoelastic Properties of Nanoparticles
Potato Starch Edible Films as Environmentally Friendly Carriers for Model Drug: In vitro Release Study
Copyright ©2010-2021 VBRI Press
Full Article