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According to relevant media reports, a research team from the Helmholtz Center in Berlin, Germany, and Humboldt University has jointly developed a new type of perovskite stacked battery. This battery has broken the world record for similar batteries with a photoelectric conversion efficiency of 24.6%. In the solar cell family, in addition to silicon-based solar cells, there are also thin-film so...
IntroductionThe small hole mode swing laser welding has gained increasing recognition due to its ability to bridge gaps, refine microstructures, and enhance the mechanical properties of welds. However, the effects of amplitude, frequency, welding speed, laser beam power, and beam radius on heat flux distribution, melting mode, and three-dimensional temperature field have not been well understood. ...
The attosecond level ultra short laser pulse provides a powerful method for detecting and imaging ultra short processes, such as the motion of electrons in atoms and molecules.Although ultra short laser pulses can be generated, generating ultra short and high-energy pulses is a continuous challenge. In order to expand the photon energy, photon flux, and continuous bandwidth of isolated attosecond ...
The energy transformation has brought us global challenges. In this regard, renewable energy sources such as photovoltaic are crucial. The key to improving the efficiency of photovoltaic power generation is to improve the manufacturing process of solar cells. Laser material processing is used to weld individual batteries into modules, dope selective emitters, and remove very thin antireflective an...
3D printing company Micronics announced the launch of its new Micron desktop selective laser sintering (SLS) 3D printer.The company stated that Micron is priced at $2999 and aims to bring industrial grade 3D printing capabilities to desktops for professionals and hobbyists. One of the main features of Micron is its ability to print complex objects without the need for supporting structures. This i...