Nonvolatile memory based on ferroelectric-graphene field-effect transistors...
A fundamental component of a field-effect transistor (FET) is the gate dielectric, which determines the number of charge carriers -- electrons or electron vacancies -- that can be injected into the...
View ArticleResearchers develop high-performance bulk thermoelectrics
(PhysOrg.com) -- Roughly 10 billion miles beyond Neptune's orbit, and well past their 30th birthdays, Voyagers 1 and 2 continue their lonely trek into the Milky Way. And they're still...
View ArticleNew production process for NiO/Ni nanocomposite electrodes for supercapacitors
(PhysOrg.com) -- Conversion to renewable energy sources like wind and sun is only a question of time. Because wind and solar radiation vary in strength, the increase in renewable energy sources will...
View ArticleTunnel view of how electrons play
(PhysOrg.com) -- Electrons behave like football teams: the match becomes interesting when the teamwork is as good as that conjured up by the players of FC Barcelona. Electrons which interact strongly...
View ArticleBetter, faster, cheaper: Doing business with the sun
The change in energy policy has been decided; Germany needs more green energy. From Sep. 5-9 in Hamburg, everything will revolve around our biggest energy supplier: the sun. At the European...
View ArticleNew rechargeable batteries needed: A microporous polymer is an unusually...
(PhysOrg.com) -- For future electric vehicles, powerful notebook computers, and other portable devices, we need a new generation of energy storage materials that are better suited to modern needs than...
View ArticleMorphology matters: The effect of processing on solar cells
The dramatic influence of polymer processing conditions on the performance of polymer solar cells is highlighted by a new paper in the Journal of Polymer Science: Polymer Physics.
View ArticleResearchers create two-segment nanotubes with distinct semiconducting domains
(PhysOrg.com) -- A group of researchers working in Japan has devised a means of creating dual segmented nanotubes where each segment has separate and distinct semiconducting properties. The team...
View ArticleSelf-organization gives rise to more efficient organic solar cells
Organic solar cells have the potential to convert sunlight into electrical energy in an economical and environmentally friendly fashion. The challenge is that they still work less efficiently than...
View ArticleExperiments prove nanoscale metallic conductivity in ferroelectrics
(PhysOrg.com) -- The prospect of electronics at the nanoscale may be even more promising with the first observation of metallic conductance in ferroelectric nanodomains by researchers at Oak Ridge...
View ArticleBuilding a better light bulb
Scientists study the movement of charge carriers to design an organic LED that is energy efficient and still casts a warm, natural glow.
View ArticleWhen ions get closer: New physical attraction between ions in quantum plasmas
Nowadays, ever smaller and more powerful computer chips are in demand. German physicists have discovered a new physical attraction that accelerates this progress.
View ArticleFirst observation of the hall effect in a Bose-Einstein condensate
(Phys.org) -- National Institute of Standards and Technology researchers have observed for the first time the Hall effect in a gas of ultracold atoms. The Hall effect is an important interaction of...
View ArticleComplex oxides become multifunctional at ultimate quantum limit
(Phys.org)—A University of Arkansas physicist and his colleagues have examined the lower limits of novel materials called complex oxides and discovered that unlike conventional semiconductors the...
View ArticleSemiconductors with electric and magnetic properties
European scientists developed solid-state semiconductor components with magnetic properties, a prerequisite for a new generation of electronic devices exploiting both the charge and the spin of electrons.
View ArticleObstinate electrons 'ignore' assumptions and follow another path
(Phys.org)—It is possible to make gold wires so thin that there is not even enough room for electrons to pass one another. It's as if they were driving down a one-lane motorway, this has a major impact...
View ArticleA molecular glance on solar water splitting: The hunt for electron holes
Hydrogen production by solar water splitting in photoelectrochemical cells (PEC) has long been considered the holy grail of sustainable energy research. Iron oxide is a promising electrode material. An...
View ArticleA new chapter of solar energy conversion and storage?
(Phys.org)—Using the power of the sun and ultrathin films of iron oxide (commonly known as rust), Technion-Israel Institute of Technology researchers have found a novel way to split water molecules...
View ArticleKey property of graphene sustained over wide ranges of density and energy
(Phys.org)—A collaboration led by researchers from the NIST Center for Nanoscale Science and Technology has shown for the first time that charge carriers in graphene continue to behave as massless...
View ArticlePyroelectric nanogenerator charges Li-ion battery with harvested energy
(Phys.org)—The idea of harvesting ambient energy from the environment that would otherwise not be purposefully used is, in theory, a great way to produce green, renewable energy. But the biggest...
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