For computer screens, TVs and smartphonesCurrently, there is one of the most serious problems - a decrease in the brightness of blue LEDs, which significantly reduces image quality. Scientists from the National Research Technological University "MISiS" have created new LEDs that provide the solution to this problem.
The invention of the Russians is based on the principlethe use of perovskite thin-film devices. In the modified LEDs, a two-dimensional inorganic material is used as the electron transport layer of the perovskite LED.
Perovskite innovative material, representsa new class of semiconductors, which can significantly reduce the cost of monitors and other optical devices, such as solar panels, lasers, photo detectors and the actual LEDs.
When creating a perovskite LEDused two-dimensional zirconium trisulfide, which replaced the traditional materials used in the organic layers of LED devices. When forming the perovskite layer, the industrial method of slot-matrix printing was used, which will ensure the prompt implementation of the technique in serial production.
According to the developers, currently inall over the world when creating perovskite LEDs, the method of layer-by-layer deposition of precursors on a rotating glass substrate is used. This method allows to obtain a uniform layer, but is not suitable for the production of precursors on an industrial scale, since it does not provide for the simultaneous loading of several samples.
Scientific team from MISiS at presentworks on adapting perovskite application technology to existing techniques in the semiconductor industry. This will allow to expand the widespread production of new-type LEDs, eliminating the problem of burnout monitors.