Phenyl ethylene end capped tetrathiophen derivative, preparation and use thereof

Abstract

The invention discloses a styrene blocked 4-thiophene derivative and a preparation method and application thereof. The structure of the styrene blocked 4-thiophene derivative is shown in a formula (I). In the invention, dibrom 4-thiophene, (E)-Beta-3-butyl tin para R group styrene and 2(triphenyl phosphine)palladium chloride are dissolved in toluene to prepare a mixing solution, and the mixing solution is reacted at a temperature of between 80 and 100 DEG C for 48 to 72h, the toluene is removed, and the compound shown in the formula(I) is obtained. When the compound is used as an organic semiconductor to make an organic field-effect transistor, the highest mobility is 0.06cm<2> / V per second, the on-off ratio is more than 10<5>, which shows that the compound has a good application prospect while being used as the organic semiconductor material to make an organic field-effect transistor.

Description

technical field The invention relates to a styrene-terminated naphthalene tetrathiophene derivative, a preparation method and application thereof. Background technique Organic field-effect transistor (OFET) is one of the important organic semiconductor devices. It uses organic semiconductor materials as the conductive channel. Capacitance and other advantages. Since 1986, Tsumura et al. reported organic thin film field effect transistors for the first time (Tsumura, A.; Koezuka, H.; Ando, ​​T. Appl. Phys. Lett, 1986, 49, 1210.). In recent years, research on organic field effect transistors has developed rapidly and has attracted widespread attention. Organic field-effect transistors can be used in logic gates of ring oscillators of radio frequency cards, active drive circuits of flexible displays, organic sensors, memory, electronic paper and other fields, and are key components of organic optoelectronic devices and circuits. Especially in recent years, the research work ...

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Problems solved by technology

However, most OFET devices based on derivatives of dithiophene and trithiophene show poor performance

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