Stacking perovskites onto a conventional silicon solar cell dramatically improves the overall efficiency of the cell, according to a new study led by Stanford University scientists.
Thursday, January 15, 2015
Shining a light on quantum dots measurement
Due to their nanoscale dimensions and sensitivity to light, quantum dots are being used for a number of bioimaging applications including in vivo imaging of tumor cells, detection of biomolecules, and measurement of pH changes.
Liquids and glasses relax, too. But not like you thought.
A new insight into the fundamental mechanics of the movement of molecules offers a surprising view of what happens when you pour a liquid out of a cup. More important, it provides a theoretical foundation for a molecular-level process that must be controlled to ensure the stability of important protein-based drugs at room temperature.
Physicists detect 'charge instability' across all flavours of copper-based superconductors
Physicists have detected 'charge ordering' in electron-doped cuprate superconductors for the first time.
New technique enables nanoscale-resolution microscopy of large biological specimens
Instead of making their microscopes more powerful, researchers have discovered a method that enlarges tissue samples by embedding them in a polymer that swells when water is added. This allows specimens to be physically magnified, and then imaged at a much higher resolution.
Rice-sized laser, powered one electron at a time, bodes well for quantum computing
Researchers have built a rice grain-sized laser powered by single electrons tunneling through artificial atoms known as quantum dots. The tiny microwave laser, or 'maser', is a demonstration of the fundamental interactions between light and moving electrons.
Gold nanoparticles show promise for early detection of heart attacks
Researchers have developed a new test strip that is demonstrating great potential for the early detection of certain heart attacks.
Glass for battery electrodes
Chemists and materials scientists have developed a type of glass that can be used as an electrode material in lithium-ion batteries - likely making a vast improvement in these batteries' capacity and energy density.
Vector electromagnet syytem creates 3D magnetic fields in samples
Researchers have set up a unique measurement station at BESSY II: a vector electromagnet consisting of three mutually perpendicular Helmholtz coils which enables setting the local magnetic field at the sample position to any orientation desired.
Wichtiger Schritt für die Nanotechnologie: Erste Messung elektrischer Felder zwischen Atomen
Wissenschaftlern ist es jetzt erstmals gelungen, elektrische Felder zwischen Atomen in einem Kristall zu messen.
Extra-short nanowires best for brain
If in the future electrodes are inserted into the human brain - either for research purposes or to treat diseases - it may be appropriate to give them a 'coat' of nanowires that could make them less irritating for the brain tissue. However, the nanowires must not exceed a certain length, according to new research.
'Nematic liquid crystals' can lead to vastly improved organic solar cell performance
New and improved solar panels could result from the discovery of a new liquid crystal material, making printable organic solar cells better performing.
Going with the flow
A new study carefully examines the relationships between self-motile and passive or inert agents to determine possibility of creating fully synthetic systems by looking into examples of biology interacting with mechanical mechanisms.
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