IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0290738
(2002-11-08)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
7 인용 특허 :
10 |
초록
▼
The invention resides in a molecular, inorganic glass and a method of making the glass, the glass being vitreous and resistant to devitrification, that is composed, in substantial part at least, of thermally-stable, zero-dimensional clusters or molecules, composed of four atoms of arsenic and three
The invention resides in a molecular, inorganic glass and a method of making the glass, the glass being vitreous and resistant to devitrification, that is composed, in substantial part at least, of thermally-stable, zero-dimensional clusters or molecules, composed of four atoms of arsenic and three atoms of sulfur, the glass further containing up to 12 atomic percent of germanium, adjoining clusters being bonded to each other primarily by van der Waals forces, and at least 95% of the glass composition consisting of 42-60% arsenic, 37-48% sulfur plus selenium, the selenium being 0-14%.
대표청구항
▼
1. A glass that is resistant to devitrification, having at least about 95% of the glass composition, in atomic percent, comprising about: 42-60% arsenic, 37-48% sulfur, 0-14% selenium, or optionally, up to about 12% germanium; and comprising, in substantial part, at least one species including eithe
1. A glass that is resistant to devitrification, having at least about 95% of the glass composition, in atomic percent, comprising about: 42-60% arsenic, 37-48% sulfur, 0-14% selenium, or optionally, up to about 12% germanium; and comprising, in substantial part, at least one species including either thermally stable, zero-dimensional molecules or thermally stable, zero-dimensional network-forming groups. 2. The glass according to claim 1, wherein at least a portion of said zero-dimensional molecules have a composition comprising As 4 S 3 . 3. The glass according to claim 1, wherein at least a portion of said zero-dimensional molecules have a composition comprising As 4 S 4 . 4. The glass according to claim 1, wherein at least a portion of said network-forming groups have a composition comprising As—(S,As) n units. 5. The glass according to claim 2, wherein adjoining zero-dimensional molecules are bond to each other primarily by van der Waals forces. 6. The glass according to claim 1, wherein said glass optionally contains up to about 5% tellurium (Te), not over about 2% tin (Sn), up to about 5% antimony (Sb), and not over about 2.5% phosphorus (P), with a content of these components not to exceed about 5% in total. 7. The glass according to claim 1, wherein said glass is made by a process including either a melting/quenching, sputtering, vapor-phase deposition, or other chemical deposition technique. 8. The glass according to claim 1, wherein said glass has a Tg not over 100° C. and consists essentially of about 46-60% arsenic, 39-48% sulfur, and 0-14% selenium, and optionally of up to about 6% germanium. 9. The glass according to claim 5, wherein said glass consists essentially of about: 48-54% As, 44.5-47.5% 5 and 1.5-4.5% Ge. 10. The glass according to claim 1, wherein said glass has a Tg greater than 100° C. and consists essentially of about 42-60% arsenic, 37-48% sulfur, and 0-14% selenium, and about 6.1-12% germanium. 11. The glass according to claim 1, wherein said glass is transparent between a visible absorption edge near about 600 nm to about 1200 nm in the near infrared. 12. The glass according to claim 1, wherein said glass exhibits a CTE of about 15×10 −7 /° C. to about 100×10 −7 /° C. 13. A chalcogenide glass having at least about 95% of the glass composition, in atomic percent, consisting essentially of about: 42-60% arsenic, 37-48% sulfur, 0-14% selenium, or optionally, up to about 12% germanium; and comprising, in substantial part, at least one species including either thermally stable, zero-dimensional molecules or thermally stable, zero-dimensional network-forming groups, wherein said glass is plastically malleable at a temperature of less than or equal to about 125° C. 14. The glass according to claim 13, wherein said glass is plastically malleable at a temperature of ≦ about 50° C. 15. An optical element made from an inorganic glass that is resistant to devitrification, having at least about 95% of the glass composition, in atomic percent, comprising about: 42-60% arsenic, 37-48% sulfur, 0-14% selenium, or optionally, up to about 12% germanium; and said glass comprising, in substantial part, at least one species including either thermally stable, zero-dimensional molecules or thermally stable, zero-dimensional network-forming groups. 16. The optical element according to claim 15, wherein said element includes a lens, a microlens, an array of lenses or micro lenses, a grating, or a surface relief diffuser. 17. The optical element according to claim 16, wherein said lens, microlens, or array of lenses or microlenses, has either a spherical, aspherical, or aspheric-diffractive surface. 18. The optical element according to claim 16, wherein said optical element is a diffractive element. 19. A host material for unstable inorganic dyes comprising a glass having at least about 95% of the glass composition, in atomic percent, consisting e ssentially of about: 42-60% arsenic, 37-48% sulfur, 0-14% selenium, or optionally, up to about 12% germanium; and said glass comprising, in substantial part, at least one species including either thermally stable, zero-dimensional molecules or thermally stable, zero-dimensional network-forming groups. 20. A low-temperature, hermetic sealing material comprising: a glass having at least about 95% of the glass composition, in atomic percent, consisting essentially of about: 42-60% arsenic, 37-48% sulfur, 0-14% selenium, or optionally, up to about 12% germanium; and said glass comprising, in substantial part, at least one species including either thermally stable, zero-dimensional molecules or thermally stable, zero-dimensional network-forming groups.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.