Scientists in China built for the first time a four-terminal tandem perovskite cell with a 17.88%-efficient top perovskite device and a 7.85%-efficient bottom antimony selenide bottom cell.

Strange, ultraheavy stars that are rich in barium grow massive by cannibalizing their companions, scientists discover after finally catching these stellar leeches in the act. A strange type of ...

Barium is a metal in group IIA of the periodic table with atomic number 56, an atomic weight of 137.34, and a density of 3.5 Mg/m 3. Its melting point is 714 C, and it boils at 1640 C. The electronic ...

Our graduate students are constantly making groundbreaking discoveries and important advances in physics. From studies on the universe's largest galaxies to the smallest of subatomic particles, read ...

Cadmium selenide (CdSe) is an II-VI semiconductor material with a bandgap of around 1.7eV, which makes it ideal for building thin-film solar cells with strong optoelectronic properties ...

Common infrared transmitting materials for infrared windows include calcium fluoride, barium fluoride, zinc selenide, infrared polymer, zinc selenide, germanium, sapphire or single crystal alumina, ...

Meller Optics manufactures optical domes, lenses, prisms, mirrors, substrates, waveplates, and windows from sapphire, single crystal quartz, germanium, silicon, Yag ...

The company demonstrated optimized two-qubit gates on barium with greater than 99.9% fidelity in a two-ion chain via the same mechanisms used to realize two-qubit gates in IonQ's production ...

Laser Lenseare designed to focus light in several different ways depending on the lens... [See More] Materials: Calcium Fluoride; Germanium; Sapphire; Zinc Selenide; Ultra-violet grade Fused Silica; ...