Chalcogenide hybrid organic/inorganic polymers films and coatings and the use thereof
The present invention provides certain CHIP films and coatings, as well as the preparation and uses thereof. Chalcogenide hybrid organic/inorganic polymers or CHIPs may be suitable for use in antireflection coatings for use with infrared optics, for example as applied to lenses for infrared cameras. The coatings may be applied with spin coating and have a thickness related to the quarter wavelength of the desired infrared wavelengths.
1. An antireflective (AR) coating comprising one or more chalcogenide hybrid organic/inorganic polymers (CHIPS), where the antireflection coating is applied to a substrate, wherein the one or more CHIPS are prepared from one or more monomers comprising sulfur monomers derived from (i) elemental sulfur; (ii) elemental selenium (Se 8 ); and (iii) one or more comonomers each selected from a group consisting of amine comonomers, thiol comonomers, sulfide comonomers, alkynyl unsaturated comonomers, epoxide comonomers, nitrone comonomers, aldehyde comonomers, ketone comonomers, thiirane comonomers, ethylenically unsaturated comonomers, styrenic comonomers, vinylic comonomers, methacrylate comonomers, acrylonitrile comonomers, allylic monomers, acrylate monomers, vinylpyridine monomers, isobutylene monomers, maleimide monomers, norbornene monomers, monomers having at least one vinyl ether moiety, and monomers having at least one isopropenyl moiety.
2. The coating of claim 1 , wherein infrared light in the 700-5000 nm wavelength spectrum is preferentially transmitted through the coating as compared to the incident light.
3. The antireflective (AR) coating of claim 1 , wherein the substrate comprises a high refractive index infrared optical material comprising germanium, silicon, or zinc selenide.
4. The antireflective (AR) coating of claim 1 , wherein the coating has a thickness in the range of 0.1 to 0.4 of the ratio of at least 25% of the range of the wavelengths of the incident light divided by the refractive index of the coating.
5. The antireflective (AR) coating of claim 1 , wherein the coating is a single layer, multiple layers, or a textured layer.
6. The antireflective (AR) coating of claim 1 , wherein the one or more CHIPS are prepared from one or more monomers comprising sulfur monomers derived from elemental sulfur, and elemental selenium (Se 8 ) or selenium sulfide, or a combination thereof.
7. The antireflective (AR) coating of claim 1 , wherein the one or more CHIPS comprises poly(sulfur-random-(1,3-diisopropenylbenzene)(poly(S-r-DIB)) copolymers.
8. The antireflective (AR) coating of claim 7 , wherein the one or more CHIPS comprises at least 50% sulfur monomers.
9. The antireflective (AR) coating of claim 1 , wherein the comprising one or more chalcogenide hybrid organic/inorganic polymers (CHIPS) comprises poly(sulfur-random-selenium-random-1,3 diisopropenylbenzene)(poly(S-r-Se-r-DIB)) terpolymers.
10. The antireflective (AR) coating of claim 9 , wherein the one or more CHIPS comprises about 5-50 wt % of elemental sulfur (S 8 ).
11. The antireflective (AR) coating of claim 9 , wherein the one or more CHIPS comprises about 5-50 wt % of elemental selenium (Se 8 ).
12. The antireflective (AR) coating of claim 1 , wherein the coating has a thickness in the range of 0.2 to 0.3 of the ratio of at least 25% of the range of the wavelengths of the incident light divided by the refractive index of the coating.
13. The antireflective (AR) coating of claim 1 , wherein the one or more CHIPS are prepared from one or more monomers comprising sulfur monomers derived from (i) elemental sulfur; (ii) elemental selenium (Se 8 ); and (iii) one or more norbornene monomers.
14. A method of applying the antireflective (AR) coating of claim 1 to the substrate, the method comprising contacting the coating with the surface of the substrate.
15. The method of claim 14 , wherein said contacting comprises spin coating.
16. The method of claim 14 , wherein the substrate is silicon, glass, plastic, inorganic oxides, germanium surface, an inorganic transmissive device component, a lens, or optical device component.
17. The method of claim 14 , wherein the material comprises glass, silicon, and germanium.
18. A high refractive index inorganic transmissive material operating in the near and short-wave infrared regions (NIR through MWIR) comprising an antireflective coating of claim 1 .
19. A lens or optical system in a camera, wherein one or more components of the optical system comprises the coating of claim 1 .