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Tecnología láser patentada de nano- y micro-estructuración de silicio por plasma inducido por láser

Resumen

Tipo:
Oferta Tecnológica
Referencia:
TOES20160721001
Publicado:
26/07/2016
Caducidad:
26/07/2017
Resumen:
Una universidad andaluza ha desarrollado una nueva técnica para obtener múltiples efectos de nanoestructuración de silicio sin necesidad de pulsos láser de femtosegundo de alta potencia o condiciones experimentales particulares, como atmósfera controlada o configuraciones específicas de interferencia de haces múltiples. El plasma se utiliza como medio óptico eficaz para la nanoestructuración láser de superficies de silicio. La universidad busca socios con el fin de continuar con el desarrollo de la tecnología y establecer acuerdos de licencia, cooperación técnica o comercialización con asistencia técnica.

Details

Tittle:
Patented laser technology to silicon nano and micro structuring by induced plasma lens.
Summary:
An andalusian University has developed a new technique to obtain multiple silicon nano-structuring effects with no need for high power femtosecond (fs) laser pulses or particular experimental conditions such as a controlled atmosphere or specific multiple-beam interference configurations. The University is looking to develop it further under a license, commercial agreement with technical assistance, or technical cooperation.
Description:
Nano-structuring of a metal surface with laser irradiation is a primary area of interest into the nano technologies. Many studies have been carried on the formation of more or less ordered nano silicon structures when a metal or semiconductor substrate is irradiated with pulsed laser. There are a wide range of nanostructuring possibilities such as high value and opens new avenues in the emerging field of optical components based on plasmas like plasma mirrors and optically controlled plasma gratings.

Inducted plasma laser can be used as an effective optical medium for laser nano patterning of silicon surfaces. A laser pulse is focused onto a metallic target in order to generate a plasma lens, while a second laser pulse is aimed at the plasma lens and, subsequently, hits a silicon substrate whose surface becomes printed with a periodic structure. Several control parameters are possible such as the timing between the laser pulses, the atmosphere composition and pressure or the materials used to generate the plasma lens, among others.
The technique is applicable to obtaining micro and nano structures at different scales, making it attractive for a high number of applications.

Partners from research institutes and companies active in the areas mentioned above are sought for further development with this research group with more than 15 years of experience on photovoltaic cells, studies of the electrical properties of solids, multilayered systems and interfaces.
Advantages and Innovations:
This patent proposes a simple technique for obtaining a multiple nano-structuring effect without the need of high power fs laser pulses or particular experimental conditions such as controlled environment or specific optical configurations for obtaining interference between multiple beams. A laser induced plasma plume is used as a non-linear optical element for a second laser beam which crosses the plasma perpendicularly to its expansion axis, i.e. perpendicular to the first laser beam. By varying some parameters, as the time delay between the two lasers beams or the fluence of the laser generating the plasma plume, different patterns can be induced on the surface of a silicon substrate.
Stage of Development:
Available for demonstration
IPs:
Patent(s) applied for but not yet granted

Partner sought

Type and Role of Partner Sought:
- Type of partner sought: companies related with optical components based on plasma as well as with nano materials.
- Specific area of activity of the partner: Treatment and coating of materials, surface treatment technologies, biosensor or related fields.
- Task to be performed by the partner sought: Arrangement of the acquisition of the license and coworking for the implementation of the system through technical cooperation agreement.

Client

Type and Size of Client:
Industry >500
Already Engaged in Trans-National Cooperation:
No
Languages Spoken:
English
Spanish

Keywords

Technology Keywords:
02002004 Erosión, eliminación (electroerosión, corte con llama, láser...)
02007 Tecnología de materiales