Functional composites, functional inks and applications thereof
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C08K-003/02
C08K-003/08
출원번호
US-0070063
(2008-02-14)
등록번호
US-8119233
(2012-02-21)
발명자
/ 주소
Chiruvolu, Shivkumar
Dioumaev, Vladimir K.
Kambe, Nobuyuki
Du, Hui
출원인 / 주소
NanoGram Corporation
대리인 / 주소
Dardi & Herbert, PLLC
인용정보
피인용 횟수 :
2인용 특허 :
93
초록▼
Functional composite materials comprise elemental inorganic particles within an organic matrix. The elemental inorganic materials generally comprise elemental metal, elemental metalloid, alloys thereof, or mixtures thereof. In alternative or additional embodiments, the inorganic particles can compri
Functional composite materials comprise elemental inorganic particles within an organic matrix. The elemental inorganic materials generally comprise elemental metal, elemental metalloid, alloys thereof, or mixtures thereof. In alternative or additional embodiments, the inorganic particles can comprise a metal oxide, a metalloid oxide, a combination thereof or a mixture thereof. The inorganic particles can have an average primary particle size of no more than abut 250 nm and a secondary particle size in a dispersion when blended with the organic matrix of no more than about 2 microns. The particles can be substantially unagglomerated within the composite. The organic binder can be a functional polymer such as a semiconducting polymer. The inorganic particles can be surface modified, such as with a moiety having an aromatic functional group for desirable interactions with a semiconducting polymer. Appropriate solution based methods can be used for forming the composite from dispersions of the particles. The composites can be processed into products, such as printed electronics devices.
대표청구항▼
1. A composite material comprising inorganic particles and an organic binder, the particles having an average primary particle size of no more than about 50 nm and a dispersed secondary particle size of no more than about 250 nm when incorporated into the composite wherein the inorganic particles co
1. A composite material comprising inorganic particles and an organic binder, the particles having an average primary particle size of no more than about 50 nm and a dispersed secondary particle size of no more than about 250 nm when incorporated into the composite wherein the inorganic particles comprise elemental metal, elemental metalloid, alloy thereof or combination thereof, wherein the organic binder comprises an organic semiconducting polymer, and wherein the composite comprises from about 15 to about 80 weight percent particles. 2. The composite material of claim 1 wherein the inorganic particles have a distribution of primary particle sizes such that at least about 95 percent of the primary particles have a particle size greater than about 40 percent of the average particle size and less than about 250 percent of the average particle size. 3. The composite material of claim 1 wherein the composite comprises at least about 50 weight percent particles. 4. The composite material of claim 1 wherein the particles comprise a dopant. 5. The composite material of claim 1 wherein the organic semiconducting polymer comprises aromatic groups and wherein the particles have a surface modifying compound having an aromatic moiety. 6. The composite material of claim 1 wherein the organic semiconducting polymer is selected from the group consisting of a poly(phenylene vinylene), a polypyrrole, a polyisothianaphene, a poly(paraphenylene), a polyphenylene, a polythiophene, a polyvinylthiophene, a polynaphthalene derivative, a polyaniline, a polyperfluorine, a polyspirobisfluorine, a polypyridine, a polypyrrol, copolymers thereof and mixtures thereof. 7. The composite material of claim 1 wherein a linker moiety is associated with the particle surface and is covalently bonded with the organic semiconducting polymer. 8. The composite material of claim 1 wherein the inorganic particles comprise elemental silicon. 9. The composite material of claim 1 wherein the particles have a surface modifying compound having an organic aromatic functional group that comprises aromatic carbon rings. 10. The composite material of claim 1 wherein the particles have a surface modifying compound having an organic aromatic functional group that comprises at least one heteroatom and at least one carbon within the aromatic ring. 11. The composite material of claim 1 wherein the particles have a surface modification moiety that is chemically bonded to the inorganic particles. 12. The composite material of claim 1 wherein a surface modification moiety functions as a surface active agent for the inorganic particle surfaces without a chemical bonding interaction. 13. A composite material comprising inorganic particles and an organic semiconducting binder, the particles having an average primary particle size of no more than about 250 nm and a dispersed secondary particle size of no more than about 2 microns when incorporated into the composite wherein the inorganic particles comprise a metal oxide, a metalloid oxide, a combination thereof, or a mixture thereof and wherein the particles within the composite are substantially non-agglomerated. 14. The composite material of claim 13 wherein the particles have a surface modification moiety that is covalently bonded to the organic semiconducting binder. 15. A composite material comprising inorganic particles and an organic binder, the particles having an average primary particle size of no more than about 50 nm and a dispersed secondary particle size of no more than about 250 nm when incorporated into the composite wherein the inorganic particles comprise doped elemental silicon. 16. The composite material of claim 15 wherein the inorganic particles have a distribution of primary particle sizes such that at least about 95 percent of the primary particles have a particle size greater than about 40 percent of the average particle size and less than about 250 percent of the average particle size. 17. The composite material of claim 15 wherein the organic binder comprises an organic semiconducting polymer selected from the group consisting of a poly(phenylene vinylene), a polypyrrole, a polyisothianaphene, a poly(paraphenylene), a polyphenylene, a polythiophene, a polyvinylthiophene, a polynaphthalene derivative, a polyaniline, a polyperfluorine, a polyspirobisfluorine, a polypyridine, a polypyrrol, copolymers thereof and mixtures thereof. 18. The composite material of claim 15 wherein a linker moiety is associated with the particle surface and is covalently bonded with the organic binder.
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