INK COMPOSITION FOR IMPRESSING, METHOD OF IMPRESSING, LIGHT DEVICE, OPTICAL SENSOR AND PHOTOELECTRIC DEVICE WITH OPTICAL ELEMENT Russian patent published in 2021 - IPC C09D11/37 C09D11/102 G03F7/00 H01L31/232 H01L31/54 H01L33/58 

FIELD: polymers.

SUBSTANCE: invention relates to an ink composition for imprinting suitable for imprinting into a structured surface of an elastomeric stamp. The composition of the ink for imprinting contains nanoparticles of transition metal oxide. The composition contains a polar solvent selected from at least one of water and methanol, a polymerizing material dissolved and/or dispersed in a polar solvent, and the polymerizing material contains transition metal oxide particles forming at least 80% b.w. of the total mass of the polymerized content, and the polymerized material forms 2-25% b.w. when calculating the total mass of the composition of the ink for imprinting and the polymerization inhibitor. In this case, the polymerization inhibitor is selected from the polymerization inhibitor of Formula 1, the polymerization inhibitor of Formula 2, the polymerization inhibitor of Formula 3, or the polymerization inhibitors of Formula 1 in combination with the polymerization inhibitor of Formula 3. The polymerization inhibitor of Formula 1 is present in an amount in the range of 0.3-3% b.w., the polymerization inhibitor of Formula 2 is present in an amount in the range of 0.7-7% b.w., and the polymerization inhibitor of Formula 3 is present in an amount in the range of 0.7-7% b.w., where the inhibitor content is based on the total weight of the ink composition for imprinting. In this case, the inhibitors correspond to the following structural formulas:

Formula 1

wherein in Formula 1 R₁ represents a hydrogen atom; R₂ represents С₁-alkyl, and R₃ represents a hydrogen atom, and m is 0, or wherein in Formula 1 R₁ represents –(-С₂Н₅-О-)_n-R₁₃, n equals to 1 and R₁₃ represents С₂-alkyl, R₂ and R₃ represent hydrogen, and m equals to 1;

Formula 2

,

wherein in Formula 2 R₄ is methyl;

Formula 3

,

wherein in Formula 3 R₅ and R₆ are С₁-alkyl. The ink composition has a pH of 4 or less and is characterized by a 5-30 nm transition metal oxide particle size distribution. Also disclosed are imprinting methods using such imprinting ink compositions, optical devices including structured layers formed from such imprinting ink compositions and light devices, optical sensors and photoelectric devices including such optical elements.

EFFECT: ink composition for imprinting stabilized with selected polymerization inhibitors provides a stable ink composition in which polymerization of the transition metal oxide nanoparticles is effectively suppressed and from which structured layers having a high refractive index can be formed.

16 cl, 15 dwg, 3 tbl, 43 ex