Russian scientists from Moscow State University named after M.V.

Lomonosov Institute of Synthetic Polymer Materials named after N. S. Enikolopov RAS, Novosibirsk Institute of Organic Chemistry named after N. N. Vorozhtsov, together with colleagues from the University of Groningen (Netherlands), created a material for displays and lamps of the next generation - OLET displays.

According to the authors of the work, electronic devices based on this material will be brighter and more economical than analogues.

The results of the study, supported by a grant from the Russian Science Foundation, were published in the journal Materials Chemistry Frontiers.

In recent years, liquid crystal displays have been replaced by OLED (Organic Light-Emitting Diode) displays - such displays are increasingly used in electronic devices.

The matrix of these screens includes layers of special organic molecules that act as diodes.

When a current is applied to the material, the diodes emit light, which forms an image on the screen.

Silicon transistors are used to control the current in such displays.

In addition, such a screen must be covered with a special layer of polarizer.

This film absorbs some of the light, which reduces the energy efficiency of the device.

A simpler and more effective solution should be a new generation of displays based on OLET (Organic Light Emitting Transistor) light transistors.

They will consist of only one layer of material that will combine the qualities of a diode and a transistor - it will be able to emit light when an electric current passes through it and control this current.

The matrix of such a display is a thin single-layer film.

These displays will be more energy efficient and lighter than OLED screens.

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However, such screens will require more current.

This problem is caused by the molecular structure of the material from which the transistor film is made.

In the microcrystals that make up this film, part of the light is not emitted outside, but is "locked" inside.

The authors of the work managed to solve this problem.

Scientists have synthesized a substance whose molecular structure allows to maximize the emission of light when current passes through the material.

In such crystals, the molecules are arranged in such a way that they enhance the glow.

As a result, electronic devices based on such material will be brighter and more economical than analogues.

“This is the way to transparent, light, flexible (unbreakable) light sources for various applications.

The production of organic electronic devices is potentially cheaper than conventional ones, and it can also be "green" and less energy-intensive.

A regular display is like a sandwich: an electrode, then a transistor, then an LED.

Multilayer structure.

And here the device is oriented in a plane: the electrode is on the left, the electrode is on the right, and the radiating area is in the center.

It is very thin, about 10 nm, can be completely transparent and emits polarized light in the desired direction.

At the next stage, we plan to make an efficient organic 2D transistor, which will allow us to create a new generation display and an organic laser powered by electricity, as well as address the issue of the stability of light transistors, ”said RT the head of the organic electronics group,