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US 7,803,458 B2Granted
Hybrid organic-inorganic polymer coatings with high refractive indices
AssigneeBrewer Science Inc.
InventorsTony D. Flaim, Yubao Wang, Ramil-Marcelo L. Mercado
Life of this patent
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Abstract
Novel compositions and methods of using those compositions to form metal oxide films or coatings are provided. The compositions comprise an organometallic oligomer and an organic polymer or oligomer dispersed or dissolved in a solvent system. The compositions have long shelf lives and can be prepared by easy and reliable preparation procedures. The compositions can be cured to cause conversion of the composition into films of metal oxide interdispersed with organic polymer or oligomer. The cured films have high refractive indices, high optical clarities, and good mechanical stabilities at film thicknesses of greater than about 1 μm.
Claims18
The combination of:
- a substrate having a surface;
- and
- a cured layer that is a metal oxide and organic hybrid film on said substrate surface, said layer being formed from a composition comprising:
- a solvent system;
- an organometallic oligomer dissolved or dispersed in said solvent system, said organometallic oligomer comprising recurring monomers having the formula
- wherein:
- n is 3-10;
- each M is individually selected from the group consisting of Groups 3-5 and 13-15 metals other than silicon and having a combining valence of greater than ±2;
- and
- each R1 is an organic moiety covalently bonded or coordinate-covalently bonded to M;
- and
- an organic polymer or oligomer having a weight-average molecular weight of at least about 150 g/mol, said organic polymer or oligomer comprising a functional group selected from the group consisting of chelating moieties selected from the group consisting of
- wherein:
- m is 1 or 2;
- when m is 2, then x is 0;
- each R6 is individually selected from the group consisting of hydrogen and methyl groups;
- and
- each R7 is individually selected from the group consisting of hydrogen and alkyls;
- and
- wherein said cured layer has a refractive index of at least about 1.65 at a wavelength of about 633 nm and at a thickness of about 0.5 μm.
17 more elements
A method of forming a solid-state device structure, said method comprising the steps of:
- applying a composition to a substrate surface to form a layer of said composition on said substrate surface, said composition comprising:
- a solvent system;
- an organometallic oligomer dissolved or dispersed in said solvent system, said organometallic oligomer comprising recurring monomers having the formula
- wherein:
- n is 3-10;
- each M is individually selected from the group consisting of Groups 3-5 and 13-15 metals other than silicon and having a combining valence of greater than +2;
- and
- each R1 is an organic moiety covalently bonded or coordinate-covalently bonded to M;
- and
- an organic polymer or oligomer having a weight-average molecular weight of at least about 150 g/mol, said organic polymer or oligomer comprising a functional group is selected from the group consisting of chelating moieties selected from the group consisting of
- wherein:
- m is 1 or 2;
- when m is 2, then x is 0;
- each R6 is individually selected from the group consisting of hydrogen and methyl groups;
- and
- each R7 is individually selected from the group consisting of hydrogen and alkyls;
- and
- heating said layer at a temperature of from about 150-300° C. to yield a hybrid metal oxide-organic film having a refractive index of at least about 1.65 at a wavelength of about 633 nm and at a film thickness of about 0.5 μm.
15 more elements
The combination of:
- a substrate having a surface;
- and
- a cured layer that is a metal oxide and organic hybrid film on said substrate surface, said layer being formed from a composition comprising:
- a solvent system;
- an organometallic oligomer dissolved or dispersed in said solvent system, said organometallic oligomer comprising recurring monomers having the formula
- wherein:
- n is 3-10;
- each M is individually selected from the group consisting of Groups 3-5 and 13-15 metals other than silicon and having a combining valence of greater than +2;
- and
- each R1 is an organic moiety covalently bonded or coordinate-covalently bonded to M;
- and
- an organic polymer or oligomer having a weight-average molecular weight of at least about 150 g/mol, said organic polymer or oligomer comprising a functional group selected from the group consisting of chelating moieties selected from the group consisting of
- wherein:
- m is 1 or 2;
- when m is 2, then x is 0;
- each R6 is individually selected from the group consisting of hydrogen and methyl groups;
- and
- each R7 is individually selected from the group consisting of hydrogen and alkyls;
- and
- wherein said cured layer has a percent transmittance of at least about 80% at a wavelength of about 633 nm and at a thickness of about 0.5 μm.
17 more elements
A method of forming a solid-state device structure, said method comprising the steps of:
- applying a composition to a substrate surface to form a layer of said composition on said substrate surface, said composition comprising:
- a solvent system;
- an organometallic oligomer dissolved or dispersed in said solvent system, said organometallic oligomer comprising recurring monomers having the formula
- wherein:
- n is 3-10
- each M is individually selected from the group consisting of Groups 3-5 and 13-15 metals other than silicon and having a combining valence of greater than 4-2;
- and
- each R1 is an organic moiety covalently bonded or coordinate-covalently bonded to M;
- and
- an organic polymer or oligomer having a weight-average molecular weight of at least about 150 g/mol, said organic polymer or oligomer comprising a functional group selected from the group consisting of chelating moieties selected from the group consisting of
- wherein:
- m is 1 or 2;
- when m is 2, then x is 0;
- each R6 is individually selected from the group consisting of hydrogen and methyl groups;
- and
- each R1 is individually selected from the group consisting of hydrogen and alkyls;
- and
- heating said layer at a temperature of from about 150-300° C. to yield a hybrid metal oxide-organic film having a percent transmittance of at least about 80% at a wavelength of about 600 nm and at a film thickness of about 0.5 μm.
15 more elements
Dependencies are inferred from the claim text.