Energy & Green Tech

Photon recycling: The key to high-efficiency perovskite solar cells

Scientists from TU Dresden, in cooperation with researchers at Seoul National University (SNU) and Korea University (KU), demonstrated the role of the re-use of photons (known as 'photon recycling') and light scattering effects ...

Electronics & Semiconductors

A new development method for flexible electronics

A simple, fast, and green flexible electronics preparation technology was put forward by the research team led by Prof. Zhao Gang from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences ...

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Metal

In chemistry, a metal (Greek: Metallo, Μέταλλο) is an element, compound, or alloy characterized by high electrical conductivity. In a metal, atoms readily lose electrons to form positive ions (cations); those ions are surrounded by delocalized electrons, which are responsible for the conductivity. The thus produced solid is held by electrostatic interactions between the ions and the electron cloud, which are called metallic bonds.

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