The present invention relates to formulations comprising at least one organic semiconductor and at least one organic solvent, characterized in that the formulation contains less than 10,000 particles per liter formulation having an average size in the range from 0.1 to 20 m, to their use for the preparation of electronic devices, to methods for preparing electronic devices using the formulations of the present invention, and to electronic devices prepared from such methods and formulations.

The present invention relates to an ink composition comprising an organic functional material having a molecular weight of at most 5,000 g/mol and a first organic solvent selected from the group consisting of terpene, terpenoid, and combination of any of these, as well as to the use of the ink composition, an electronic device prepared by using the ink composition and method for preparing/fabricating thereof.

The present invention relates to an ink composition comprising an organic functional material having a molecular weight of at most 5,000 g/mol and a first organic solvent selected from the group consisting of terpene, terpenoid, and combination of any of these, as well as to the use of the ink composition, an electronic device prepared by using the ink composition and method for preparing/fabricating thereof.

Security element including a first and second pattern formed by a first and second material respectively in or on a first and a second region of a substrate respectively, the first pattern partially overlapping with said second pattern, the first material comprising a first luminescent dye, which upon excitation by electromagnetic radiation falling within its excitation wavelength range emits electromagnetic radiation in a first emission wavelength range, the second material comprising a second luminescent dye, which upon excitation by electromagnetic radiation falling within its excitation wavelength range emits electromagnetic radiation in a second emission wavelength range, said first emission wavelength range overlapping with the excitation wavelength range of the second luminescent dye, so that upon irradiation within the excitation wavelength range of the first luminescent dye the second luminescent dye is excited, in the overlapping area of the patterns, to emit electromagnetic radiation in the emission wavelength range.

Security element including a first and second pattern formed by a first and second material respectively in or on a first and a second region of a substrate respectively, the first pattern partially overlapping with said second pattern, the first material comprising a first luminescent dye, which upon excitation by electromagnetic radiation falling within its excitation wavelength range emits electromagnetic radiation in a first emission wavelength range, the second material comprising a second luminescent dye, which upon excitation by electromagnetic radiation falling within its excitation wavelength range emits electromagnetic radiation in a second emission wavelength range, said first emission wavelength range overlapping with the excitation wavelength range of the second luminescent dye, so that upon irradiation within the excitation wavelength range of the first luminescent dye the second luminescent dye is excited, in the overlapping area of the patterns, to emit electromagnetic radiation in the emission wavelength range.

The invention refers to a disperse black ink comprising: an aqueous vehicle and a black dye dispersion comprising: disperse blue 165, disperse orange 29, disperse red 82 and disperse blue 60, and the use of such black ink in a method for inkjet-printing on a fabric.

The invention refers to a disperse black ink comprising: an aqueous vehicle and a black dye dispersion comprising: disperse blue 165, disperse orange 29, disperse red 82 and disperse blue 60, and the use of such black ink in a method for inkjet-printing on a fabric.

Ink formulations based on nanoparticles. The present invention relates to ink formulations based on (semi)conducting nanoparticles. In particular, the present invention relates to ink compositions based on zinc oxide and aluminium (semiconducting nanoparticles suitable for different printing methods.

Ink formulations based on nanoparticles. The present invention relates to ink formulations based on (semi)conducting nanoparticles. In particular, the present invention relates to ink compositions based on zinc oxide and aluminium (semiconducting nanoparticles suitable for different printing methods.

A copper precursor composition contains: a first copper complex of an imine or a first cyclic amine coordinated to a first copper precursor compound; and, a second copper complex of a primary amine or a second cyclic amine coordinated to a second copper precursor compound. A copper precursor composition contains a copper complex of an imine coordinated to a copper precursor compound. The copper precursor composition is thermally degradable at a temperature lower than a comparable composition containing only primary amine copper complexes under otherwise the same conditions to produce a metallic copper film having a resistivity of about 200 -cm or less. Inks containing the copper precursor composition and a solvent may be deposited on a substrate and sintered to produce a metallic copper film. The substrate with the film thereon is useful in electronic devices.