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p-type Bi0.4Sb1.6Te3 nanocomposites with enhanced figure of merit
(2010)
We report enhanced figure of merit, ZT, in p-type Bi0.4Sb1.6Te3 nanocomposites fabricated by a rapid and high throughput method of mixing nanostructured Bi0.4Sb1.6Te3 particles obtained through melt spinning with micronsized ...
Enhanced thermopower of graphene films with oxygen plasma treatment
(2011)
In this work, we show that the maximum thermopower of few layers graphene (FLG) films could be greatly enhanced up to ∼700 μV/K after oxygen plasma treatment. The electrical conductivities of these plasma treated FLG films ...
Synthesis of porous NiO nanocrystals with controllable surface area and their application as supercapacitor electrodes
(2010)
We report a facile way to grow various porous NiO nanostructures including nanoslices, nanoplates, and nanocolumns, which show a structure-dependence in their specific charge capacitances. The formation of controllable ...
Influence of pulsed laser deposition rate on the microstructure and thermoelectric properties of Ca3Co4O9 thin films
(2009)
The effects of deposition rate on the microstructure and thermoelectric (TE) properties of Ca3Co4O9 thin films fabricated by pulsed laser deposition (PLD) technique were investigated. X-ray diffraction (XRD) and high-resolution ...
Graphene-based materials : synthesis, characterization, properties, and applications
(2011)
Graphene, a two-dimensional, single-layer sheet of sp2 hybridized carbon atoms, has attracted tremendous attention and research interest, owing to its exceptional physical properties, such as high electronic conductivity, ...
Binary-phased nanoparticles for enhanced thermoelectric properties
(2009)
Binary-phased PbTe-PtTe2 nanoparticles are synthesized by co-precipitation in a chemical process. These nanoparticles show much enhanced power factors as compared to that of pure PbTe nanoparticles, which may give impact ...
Generation of dual patterns of metal oxide nanomaterials based on seed-mediated selective growth
(2010)
A facile route for the generation of the dual patterns of metal oxide nanomaterials, for example, ZnO and CuO, has been developed by printing the oxide seeds through a combination of microcontact printing (μCP) and ...
Effect of Ag-doping on crystal structure and high temperature thermoelectric properties of c-axis oriented Ca3Co4O9 thin films by pulsed laser deposition
(2011)
Ag-doped Ca3Co4O9 thin films with nominal composition of Ca3−xAgxCo4O9 (x = 0∼0.4) have been prepared on sapphire (0 0 0 1) substrates by pulsed laser deposition (PLD). Structural characterizations and surface chemical ...
Power factor enhancement for few-layered graphene films by molecular attachments
(2011)
In this work, we prepared few-layered graphene (FLG) films and investigated their thermoelectric properties. It was found that pristine FLG films showed a low thermopower of ~40 μV/K. We further processed these FLG films ...
Graphene oxide as a carbon source for controlled growth of carbon nanowires
(2011)
A simple methodfor the controlled growth of novel reduced graphene oxide/carbon nanowire (rGO/CNW) composites is developed. Without any additional carbon precursor, the graphene oxide itself serves as the only carbon source. ...
