Optical coatings

High refractive index NIL coating for spin coating

Inkron’s standard NIL processable high refractive index (RI) products are optimized for Nano Imprint Lithography (NIL) but may be used also as an overcoat. Special care has been taken to maximize the optical and process properties. It is possible to adjust the formulation to meet the specific refractive index and thickness targets. 

Product

Refractive Index 

Cure

IOC-114 solvent-free

1.55

UV 

IOC-115 solvent

1.55

UV 

IOC-172

1.7

UV

IOC-135

1.8

UV

IOC-133

1.9

UV

Standard high refractive index and NIL processable products for spin coating

High refractive index NIL material for inkjet printing

Inkron’s inkjet printable and NIL processable high refractive index (RI) products enhance your optical design flexibility. Achieve the ability to print different layer thicknesses and multiple products on a single substrate simultaneously. Optimize residual layer thickness in individual substrate areas. Achieve material usage efficiency by printing only where needed.

Product

Refractive Index 

Cure

IPO-581

1.58

UV 

IPO-711

1.7

UV 

IPO-810

1.8

UV

IPO-912

1.9

UV

Standard high refractive index and NIL processable products for inkjet printing

Low refractive index coatings

Inkron’s standard low refractive solutions are particle free and provide excellent optical properties; scatter free high transmission and low haze. Certain grades are designed for gap filling applications needed for enforcing NIL structures or to achieve the refractive index difference necessary in some optical structures.

Product

Refractive Index 

Cure

IOC-501

1.25-1.30

Thermal  

IOC-560

1.2x

Thermal  

IOC-560C

1.1x

Thermal  

Standard low refractive index products

Inkjet printable dielectric

IPD-350 inkjet-printable dielectric ink – a high-resolution, reliable solution based on a proprietary siloxane polymer composition. This thermally curable ink offers fast curing, producing transparent, flexible films with excellent adhesion to common substrates like ITO, plastics, and metals, making it an ideal choice for diverse printing applications.

Product

Comment

IPD-350S

Transparent, thermal cure