Search
Now showing items 1-10 of 10
Strain effects and thickness dependence of ferroelectric properties in epitaxial BiFeO3 thin films
(2008)
A “misfit strain-temperature” phase diagram for BiFeO3 thin film was constructed based on the
Landau–Devonshire theory with the mechanical substrate effect. It is found that the polarizatio ...
N-type behavior of ferroelectric-gate carbon nanotube network transistor
(2008)
Carbon nanotube field effect transistor has attracted much attention recently and is a promising candidate for next generation nanoelectronics. Here, we report our study on a transistor using single wall carbon nanotube ...
Growth, crystal structure, and properties of epitaxial BiScO3 thin films
(2008)
Epitaxial thin films of BiScO3—a compound thermodynamically unstable under ambient conditions—were grown on BiFeO3-buffered SrTiO3 substrates. X-ray diffraction confirmed the reasonable crystalline quality of the films ...
Self-assembled shape- and orientation-controlled synthesis of nanoscale Cu3Si triangles, squares, and wires
(2008)
Controlling shape and orientation is important for the synthesis of functional nanomaterials. In this work, nanoscale Cu3Si triangles, squares, and wires have been grown on Si(111), (100), and (110) substrates, respectively, ...
Dc leakage behavior and conduction mechanism in (BiFeO3)m(SrTiO3)m superlattices
(2008)
Leakage current behavior of (BiFeO3)m(SrTiO3)m superlattice structures was studied and analyzed at different temperatures (303–473 K) in the light of various models. While bulk limited Poole–Frenkel emission was observed ...
Work function engineering of electrodes via electropolymerization of ethylenedioxythiophenes and its derivatives
(2008)
The work functions of two commonly used electrodes, Au and indium-tin-oxide (ITO), can be modified by surface-electropolymerization of ethylenedioxythiophenes (EDOT) or its derivatives. The resulting work function is tunable ...
Low-voltage organic ferroelectric field effect transistors using Langmuir–Schaefer films of poly(vinylidene fluoride-trifluororethylene)
(2008)
Langmuir–Schaefer transfer was used to fabricate ultrathin films of ferroelectric copolymer, poly(vinylidene fluoride-trifluoroethylene) (70–30 mol%), for non-volatile memory application at low operating voltage. Increasing ...
Toward high-performance solution-processed carbon nanotube network transistors by removing nanotube bundles
(2008)
Reported solution-processed field-effect transistor (FET) devices based on single-walled carbon nanotube (SWNT) networks have either high mobility but low on/off ratio or vice versa. Recently, Arnold et al. (Nat. Nanotechnol. ...
Charge injection at carbon nanotube-SiO2 interface
(2008)
Most single-wall carbon nanotube field-effect transistors show significant hysteresis in their transfer characteristics between forward and reverse gate bias sweeps. It was proposed that the hysteresis is due to a dynamic ...
Photoconductivity from carbon nanotube transistors activated by photosensitive polymers
(2008)
We perform electrostatic force microscopic measurements to reveal the mechanisms of the photoresponse from polymer-coated carbon nanotube transistors, where the effective gating due to the trapping of photogenerated electrons ...
