A nanometer light bulb made from molybdenum sulfide

Scientists from the University of Vienna, with the support of a Skoltech professor, have created a light source from single-layer molybdenum sulfide. The research results are published in the journal Advanced Materials.

Semiconductors based on layered transition metal dichalcogenides, for example, molybdenum sulfide and tungsten selenide, are convenient for use in electronic and optoelectronic devices, and their low thermal conductivity and high Seebeck coefficient, an important indicator for thermoelectronics, make materials promising for use in this field.

The scientists took small strips of single-layer molybdenum sulfide 150 nm long suspended in a vacuum and attached them to metal electrodes. By passing an electric current through them, scientists were able to heat the substance to high temperatures and cause a glow.

As a result, physicists demonstrated the glow of a section only 50 nm long. Not the entire strip with voltage applied, but only its suspended part was shining.

The new material is planned to be used to create flexible displays or various components of optoelectronic microcircuits.

Source: indicator.ru