Search Results for "Perovskite Nanowires"
Original Source: Self-templated synthesis and thermal conductivity investigation for ultrathin perovskite oxide nanowires.
The large thermal conductivity of bulk complex metal oxides such as SrTiO(3), NaCo(2)O(4), and Ca(3)Co(4)O(9) has set a barrier for the improvement of thermoelectric figure of merit and the applications of these materials in high temperature (≥1000 K) thermoelectric energy harvesting and solid-state cooling. Here, we present a self-templated synthesis approach to grow ultrathin SrTiO(3) nanowires with an average diameter of 6 nm in large quantity. The thermal conductivity of the bulk pellet made by compre...
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Copper-nickel nanowires could be perfect fit for printable electronics
Duke University chemists created a new set of flexible, electrically conductive nanowires from thin strands of copper atoms mixed with nickel. The copper-nickel nanowires, in the form of a film, condu...
The origin of the terrestrial noble-gas signature
In the atmospheres of Earth and Mars, xenon is strongly depleted relative to argon, when compared to the abundances in chondritic meteorites. The origin of this depletion is poorly understood. Here we...
Nanowires with the power to transform solar energy
Imagine a solar panel more efficient than today’s best solar panels, but using 10,000 times less material. This is what EPFL researchers expect given recent findings on these tiny filaments called n...
Inorganic–organic hybrid dye-sensitized solar cells featuring a perovskite compound as a light harvester and a polymer as a hole transporter provide an open-circuit voltage of almost 1 V and a powe...
Nano machine shop shapes nanowires, ultrathin films
A new nano machine shop that shapes nanowires and ultrathin films could represent a future manufacturing method for tiny structures with potentially revolutionary properties. Purdue University researc...
The many uses of nanowires and nanotubes
Nanowires and nanotubes have become hot materials in recent years. They exist in many forms—made of metals, semiconductors, insulators, and organic compounds—and are being studied for use in elect...
Self-assembled quantum dots in a nanowire system for quantum photonics
Current strategies for fabricating quantum dots embedded within nanowires suffer from a number of shortcomings. Now, a versatile self-assembly approach is demonstrated for fabricating core–shell GaA...
Dynamic control of magnetic nanowires by light-induced domain-wall kickoffs
The dynamical properties of single-chain magnets are difficult to control experimentally. The demonstration of a scheme for switching individual spins optically now allows for the study and manipulati...
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Perovskite-like Mn(2) O(3) : A Path to New Manganites.
Phases of the Mn(2) O(3) : Two new phases of Mn(2) O(3) -corundum-type ε-Mn(2) O(3) and perovskite-type ζ-Mn(2) O(3) -were obtained by high-pressure high-temperature synthesis. Manganese atoms were...
Nonlinear optical response in single alkaline niobate nanowires.
We have synthesized and characterized three types of perovskite alkaline niobate nanowires: NaNbO(3), KNbO(3), and LiNbO(3) (XNbO(3)). All three types of nanowires exhibit strong nonlinear response. C...
Tetragonal perovskite PbTiO(3) nanofibers are prepared by a two-step method comprising synthesis of pre-perovskite (PP) PbTiO(3) nanofibers by a hydrothermal method followed by annealing at 680 °C. A...
6.5% efficient perovskite quantum-dot-sensitized solar cell.
Highly efficient quantum-dot-sensitized solar cell is fabricated using ca. 2-3 nm sized perovskite (CH(3)NH(3))PbI(3) nanocrystal. Spin-coating of the equimolar mixture of CH(3)NH(3)I and PbI(2) in γ...
Lead-Free NaNbO(3) Nanowires for a High Output Piezoelectric Nanogenerator.
Perovskite ferroelectric nanowires have rarely been used for the conversion of tiny mechanical vibrations into electricity, in spite of their large piezoelectricity. Here we present a lead-free NaNbO(...
