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handle: 10261/135507
[ES] Comprende preparar una disolución de una mezcla que comprende a) una molécula o polímero semiconductor orgánico y b) un polímero ligante a una viscosidad determinada; en un sustrato, depositar la disolución, donde el sustrato, y opcionalmente la disolución, se ha precalentado previa la deposición de la disolución sobre el sustrato; formar un menisco con el soporte de una barra; desplazar el menisco a lo largo del sustrato a una velocidad determinada para obtener una película semiconductora orgánica sólida e isotrópica, donde el disolvente se evapora simultáneamente al avance del menisco. La película obtenida es útil para preparar un dispositivo electrónico, en especial un transistor de efecto de campo (OFET). La nueva técnica permite una buena procesabilidad de mezclas complejas que permite obtener películas semiconductoras orgánicas isotrópicas con excelentes propiedades de estabilidad a escala industrial.
[EN] The present invention relates to a method comprising: preparing a solution of a mixture having a determined viscosity and comprising a) an organic semiconductor polymer or molecule and b) a polymer binder; depositing the solution on a substrate, wherein the substrate, and optionally the solution, has been preheated before depositing the solution on the substrate; forming a meniscus using a bar; moving the meniscus along the substrate at a determined speed in order to obtain a solid, isotropic organic semiconductor film, wherein the solvent evaporates as the meniscus moves forward. The film obtained can be used to produce an electronic device, particularly a field effect transistor (OFET). The new technique provides good processability of complex mixtures, allowing industrial-scale production of isotropic organic semiconductor films with excellent stability properties.
A1 Solicitud de patente con informe sobre el estado de la técnica
Consejo Superior de Investigaciones Científicas (España)
Peer reviewed
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