A University of Wollongong-led team has combined two traditional semiconductor doping methods to achieve new efficiencies in the topological insulator bismuth-selenide (Bi 2 Se 3), Two doping elements ...

Scientists have induced high temperature superconductivity in a toplogical insulator, an important step on the road to fault-tolerant quantum computing. Reliable quantum computing would make it ...

Chemists in China have precisely grown arrays of ultrathin flakes of bismuth selenide and bismuth telluride on a surface (J. Am. Chem. Soc., DOI: 10.1021/ja3021395). The bismuth compounds belong to a ...

Tin selenide might considerably exceed the efficiency of current record holding thermoelectric materials made of bismuth telluride. However, it was thought its efficiency increased dramatically only ...

The thermoelectric effect has been known since 1821: with certain combinations of materials, a temperature difference generates an electric current. If one end of the sample is heated, for example ...

In a new study, scientists have observed long-lived excitons in a topological material, opening intriguing new research directions for optoelectronics and quantum computing. A new University of ...

(Nanowerk News) An international team of scientists with roots at SLAC and Stanford has shown that ultra-thin sheets of an exotic material remain transparent and highly conductive even after being ...

Researchers at the University of Maryland in the US are the first to have observed an insulating state at the surface of bismuth selenide. This material is normally a strong “topological insulator”, ...

Measurements at the BESSY II and PETRA IV synchrotron sources show that tin selenide can also be utilized as a thermoelectric material at room temperature -- so long as high pressure is applied. Tin ...