Heavy metals are harmful to living organisms. But some of the synthetic blocks us to assemble the final organic emitter molecules can be isolat from natural raw materials. Resource intensity . To deposit silicon on the diode substrate, physical and chemical evaporation-spraying methods are us. And for organic compounds – solution methods. That is, after evaporation of the solvent from the solution with the emitter. It is technologically simpler, faster and cheaper. Physical flexibility . The silicon wafer breaks easily when you try to bend it. But a sensor made of organic molecules in the form of a thin film easily takes the form of a substrate (for example, a finge.
Which the rich and poor parts are separat
How Ls light up Novosibirsk scientists explain such an Denmark Cell Phone Number List efficient extraction of light in organic semiconductors in response to an external action (current transmission) by the phenomenon of thermally activat delay fluorescence (TADF). If we imagine that electrons in atoms are a kind of currency, then there are “rich” (electron-donor) and “poor” (electron-acceptor) atoms. Scientists artificially construct a molecule in and maximally isolat from each other. When a molecule has such a structure, under the influence of electricity or light, the “flame of revolution” flares up – a struggle for electrons arises between “rich” and “poor” atoms.
To achieve the maximum glow effect
It leads to the appearance of an exciton – an excitation USA CFO state when an electron finds itself in an “hole” of an acceptor. Accompanying this struggle are flashes of light (the result of the decay of singlet excitons) and heat (the result of the decay of triplet excitons it is necessary to turn triplet excitons, which make up 75% of all emerging excitons, into singlet ones, Konstantin Ivanov, 2nd year postgraduate student, Faculty of Natural Sciences, Novosibirsk State University: “The energy difference between a singlet and a triplet state is like the number of steps on a flight of stairs.