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Fabricación de bajo coste y versátil de semiconductores orgánicos complementarios mediante radiación UV-VIS

Resumen

Tipo:
Oferta Tecnológica
Referencia:
TOES20160204001
Publicado:
29/02/2016
Caducidad:
28/02/2017
Resumen:
Un centro de investigación español ha desarrollado un método sencillo y eficiente para obtener semiconductores orgánicos complementarios mediante un solo paso de deposición de un único material procesable, combinado con irradiación de luz. Esto permite poner la electrónica impresa en el mercado a un precio asequible y con aplicación en el mundo real. En los procesos de fabricación de dispositivos semiconductores de tipo n y p normalmente se requiere la deposición de materiales de tipo n o p, que tienen diferentes requisitos de procesamiento. Este método permite depositar una solución de un solo material de tipo p y después irradiar con luz para convertir el material en tipo n conforme a las necesidades. Se buscan socios industriales interesados en explotar el know-how mediante la licencia de la patente.



Details

Tittle:
Low cost and versatile fabrication of complementary organic semiconductor devices by UV-VIS irradiation
Summary:
A Spanish research institution has developed a simple and efficient method to obtain complementary organic semiconductors by using only a single, solution-processable material and a single deposition step, in combination with light irradiation. This makes it possible to bring printed electronics into the market by focusing on price and real world applicability.

Industrial partners are being sought to exploit the existing know-how through a patent license agreement.
Description:
fabrication processes of n- or p-type semiconducting devices usually require the deposition of both, n- and p-type materials, which have different processing requirements. In the proposed method, only one solution of a p-type material has to be deposited. Subsequently, it can locally be irradiated with light to convert the material to n-type according to the needs (Fig. a).

Because the deposition itself comprises only a single step, this automatically ensures good electrical as well as physical contact between n- and p- regions, thereby minimizing contact resistance and avoiding dewetting and delamination issues. All of this allows to reduce the minimum process complexity, by not only forgoing the deposition step for the complementary semiconductor layer, but also potentially avoiding the need for further deposition steps of metallic interconnect layers in some devices like thermoelectric generators. Another advantage of patterning using light instead of additive techniques like inkjet printing, is the strongly increased resolution that photolithography offers.

Application to thermoelectricity has been demonstrated, using a large-scale, roll-to-roll coating compatible in-plane geometry that showcases the convenience of the developed method, while also using the inherent advantages of flexible substrates to their fullest (Fig. b).
Advantages and Innovations:

· Very simple fabrication processes, to keep costs low.
· Large areas can be coated and then patterned using optical techniques instead of relying on more complicated and less accurate multi-step printing processes.
· Higher thickness homogeneity compared to additive manufacturing.
· Applicability goes well beyond the area of thermoelectric power generation, and will prove useful in other fields, such as large area Peltier coolers, intelligent insulation materials, smart textiles, printed electronics in general.
· The materials used are stable in air over months.
Stage of Development:
Available for demonstration
IPs:
Patent(s) applied for but not yet granted

Partner sought

Type and Role of Partner Sought:
We are looking for industrial partners from the Printed electronics sector, companies interested in the use and explotation of this fabrication method, under patent license.

Client

Type and Size of Client:
R&D Institution
Already Engaged in Trans-National Cooperation:
No
Languages Spoken:
English
Spanish

Keywords

Technology Keywords:
02007018 Advanced Textile Materials
04005005 Energía térmica / solar
01002007 Nanotechnologies related to electronics & microelectronics
01002012 Semiconductores