Don't miss it. Last week, there were new discoveries in the clean room and nanotechnology community. The first version of the perovskite solar cell with the new coating has been more than 20% efficient, and it can go hand in hand with many commercial solar cells. This battery is flexible in construction and simple to produce, can generate more than half a volt of electricity. Solar cells are made of inexpensive and increasingly popular perovskite materials that incorporate two types of perovskites into a single photocell to create a sandwich-like structure that converts sunlight more efficiently For electricity.
A few days ago, UC Berkeley released a major improvement approach to inexpensive and easy-to-use perovskite solar cells.
The scientists announced a new design. The average steady-state efficiency of the newly designed perovskite battery has reached 18.4%, with a maximum efficiency of 21.7% and a peak value of 26%. Because of its ability to plug into any home's solar system, this design is likely to be the cheapest solar photovoltaic on the market.
Cup beta-cyclodextrin polymer is infused into the fabric during the polymerization process, giving the fabric the ability to sequester water and airborne contaminants
Researchers at Cornell University have developed a technology that hopes to help the manufacturing industry clean up their activities. They injected cotton with beta-cyclodextrin polymer, which acts as a filter in water and air. Scanning electron microscopy showed that the cotton fibers were unchangeable after polymerization.
When tested for the ability to absorb contaminants in water and air, polymeric fibers exhibit much greater uptake than untreated cotton fabrics or commercial adsorbents. Adsorption technology can be extended to other materials for use in gas masks, filters, explosives detection, and even detection of expired food products. Of course, he hopes that this kind of material can be dedicated to creating cleaner, more environmentally friendly industrial production.
Pay close attention to everything: Christian Ast checks the connection of the scanning tunneling microscope. Researchers at the Nanoscience Department used the instrument at the lowest temperature of 15 degrees Celsius above absolute zero. The principle is always the same: The tunnel current flows in the tiny tips and samples, providing information about the performance of the sample. In such a low temperature environment, the tunneling current shows its full quantum performance.
Finally, researchers at the Planck Solid State Institute studied what happens when the current is no longer flowing but is slowly dropping. This study required cooling their Scanning Tunneling Microscope to a temperature of 15 degrees Celsius above absolute zero.
At such low temperatures, electrons reveal their quantum properties. Therefore, current is a granular medium composed of individual particles. Electron drops pass through conductors like grains of sand in an hourglass, and this phenomenon can be explained by quantum electrodynamics.
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