As part of this study, IQDEMY's chemists and print engineers are trying to apply the benefits of digital printing technology and quantum dots to modernize the display technology for monitors.

Within the framework of the study, it has already been possible to obtain by printing a sufficiently small matrix with quantum dots placed inside the sections a that act as a light filter.

Samples of printed black grids on glasses were characterized using an optical microscope and a scanning electron microscope, as well as by profilometry.

Pic. 1. Sample with the greatest wall height. Above - pictures on an optical microscope, below - on an electronic scanning microscope.

The photographs taken from an optical microscope show that the size of the empty cell is 80x80 μm, the width of the dividing wall is 70 μm. To measure 3D parameters, images were taken using a scanning electron microscope. The diagram of the experiment is shown below.

Pic. 2. Photo of a sample with one pass. The wall height is 20-30 microns with a drop size of 54 microns.

Pic. 3. Results of printing the second layer. The droplet structure of the grid along the Y axis is erased. The X grid is almost uniform.