The technology is a method and system of liquid application to an object in a vacuum system. The invention fills the technological gap in the field of liquid application in conditions of increased purity and reduced pressure, in this context in vacuum conditions. The method allows to control the distance between the needle and the object under high vacuum conditions. The system is made of inert materials.

The presented method and system offer:

• the possibility of coating objects with very thin layers (up to few nm),
• application of solvents, suspensions/colloids, ionic liquids.
• increased process purity.

These main features are achieved by the use of a configuration in which it is possible to control the distance between the needle and the object under high vacuum conditions. In addition, the system is made entirely of materials that do not react or react poorly with popular liquids used in science and industry.

The technology belongs to the family of methods of liquid application on the surface of an object under vacuum and can be used wherever there is a need for a controlled liquid application or injection.

The invention may be an interesting alternative to the application of organic dyes, which are the basis of the operation of dye-sensitized solar cells (DSSC).

The dyes are large organic molecules from the family of e.g. porphyrins or phthalocyanines and their complexes, and the method enables the formation of thin layers of these compounds by applying their liquid solutions.

Further development is carried out by the research team from the Department of Nanostructure Engineering and Nanotechnology of the Faculty of Physics, Astronomy and Applied Computer Science of the Jagiellonian University. Currently, the CITTRU Technology Transfer Center is looking for entities interested in the commercial use of the described technology and/or partners for joint R&D projects.