Aixtron auf dem Weg zum Pennystock? (Seite 267)

[bugs2]

Genius hat was mit Si zu tun. AIX eigentlich nicht - obwohl
es eine Firma gibt die Verbundhalbleiter auf Si wachsen lässt.
Statt auf SiCarbit oder Saphir. - Kein Nachteil für Aix.
Im Gegenteil Si-Wafer sind billiger. Niedrigere Kosten könnten
die LED-Technik weiter anschupsen.

Gruß bugs

[swisssimon]

Ich habe Schwierigkeiten zu verstehen, was Silizium mit LEDs zu tun hat. LEDs werden aus Verbindungshalbleitern hergestellt. Die MOCVD-Maschinen zur Herstellung von Verbindungshalbleitern bilden das Kerngeschäft von Aixtron.

[R1712D]

absolut, den das Material wird benötigt um in den Anlagen
die LED´s und Wafer usw zu produzieren.

Blue Ray Led´s für DL-Brenner
Beschichtung (aktiv/passiv) für Flachbildschirme usw
Salarzellen

ohne Silizium geht nichts mehr

vielleicht schafft AIX auch noch den Aufstieg
zum Weltmarktführer mit den Anlagen.

[swisssimon]

Antwort auf Beitrag Nr.: 27.486.024 von R1712D am 07.02.07 14:36:05

"Nützt" das uns Aixtron-Anlegern was?

[R1712D]

Übrigens:

Degussa-Werk, Rheinfelden/Baden (das liegt nahe bei Basel)

hier wird eine neue Silizium-Anlage gebaut (Produktion 2007)für
sehr hochreines Silizium (nicht nur für Solarzellen, sondern für "spezielle" Anwendung)


Ach ich vergaß, in Rheinfelden wurde bisher das weltweit reinste Silizium hergestellt.


Woher ich das weis ?
Na, wer hatte die Idee 1999 zum Bau der Anlage ?

[swisssimon]

Klar. Z.Bsp. Sharp will auch GaAs-Zellen produzieren (oder tut's schon?). Irgendwie/irgendwo muss ja was für Aixtron abfallen...

[guenni3456]

Antwort auf Beitrag Nr.: 27.484.966 von swisssimon am 07.02.07 13:42:53

ja klar, das dachte ich mir schon. die amis sind da sehr viel patriotischer eingestellt als wir hier. ich denke es wird wohl keine amerische firma geben die je eine aixtron maschine kaufen wuerde, wenn veeco die auch verkauft...

aber keine angst, boeing ist nicht die einzige firma, die weiss wie man diese solarzellen wachsen muss. wir hier in europa, und sicherlich auch die japaner, arbeiten auch hart daran. 40% effizienz haben wir zwar noch nicht, aber das kann ja noch werden ;-).

[swisssimon]

Danke Guenni. Du scheinst Dich sehr gut auszukennen.
Ich kann nur Artikel zur Kenntnis nehmen und daraus ableiten, dass die Solartechnik, welche Verbindungshalbleiter verwendet, (mit grosser Wahrscheinlichkeit) eine grosse Zukunft haben wird.

Und eben: Spectrolabs Gallium Arsenid-Zellen (oder was auch immer) wurden mit MOCVD hergestellt - wenn auch leider mit Veeco-Maschinen...

http://phx.corporate-ir.net/phoenix.zhtml?c=111487&p=NewsArt…

Gruss
swisssimon

[guenni3456]

ach, wo ich einmal dabei bin:

ST. LOUIS, Aug. 28, 2006 -- The Boeing Company [NYSE: BA] has signed a contract to provide 600,000 solar concentrator cells to SolFocus, Inc., a California-based renewable energy company that is developing renewable terrestrial energy alternatives.

"Companies on the cutting edge of the renewable energy revolution come to us because we are the world's leading manufacturer of solar cells," said Charles Toups, vice president of engineering for Boeing Space and Intelligence Systems. "Our Spectrolab subsidiary has leveraged its expertise in space photovoltaic products to create solar cells with record-breaking efficiencies for Earth-based applications."

Under the 12-month contract from SolFocus, Inc. of Palo Alto, Calif., Spectrolab will build and deliver 600,000 solar concentrator cells that will be used to convert the sun's rays into affordable electricity for homes and businesses. The cells produced for SolFocus will be capable of generating more than 10 megawatts of electricity, or enough to power about 4,000 U.S. homes. With the average solar cell efficiency above 35 percent at concentration, Spectrolab's concentrator photovoltaic cells generate electricity at a rate that can be more economical than electricity generated from conventional, flat panel photovoltaic systems.

"Our mission is to deliver reliable solar-generated electricity at wholesale energy prices, and Spectrolab's multi-junction concentrator solar cells are key to making that possible," said Gary D. Conley, CEO of SolFocus. "Spectrolab's cells will be integrated into our upcoming solar concentrator field test program and then into the first phase of active deployments."

A significant advantage of concentrator systems is that fewer solar cells are required to achieve a specific power output, thus replacing large areas of semiconductor materials with relatively inexpensive optics that provide optical concentration. The slightly higher cost of multi-junction cells is offset by the use of fewer cells. Due to the higher efficiency of multi-junction cells used in the concentrator modules, only a small fraction of the cell area is required to generate the same power output compared to crystalline silicon or thin-film, flat-plate modules.


600000 zellen und das fuer nur ein kraftwerk. da braucht man 10 aix maschinen fuer, die ein jahr lang rund um die uhr arbeiten. und jetzt stelle man sich mal vor, dass die ganze welt anfaengt solche kraftwerke zu bauen...

sonst noch fragen?

[guenni3456]

Antwort auf Beitrag Nr.: 27.484.407 von swisssimon am 07.02.07 13:13:49

noch ein paar infos, die ich euch nicht vorenthalten will:

Boeing's Spectrolab Produces Two Millionth Multi-Junction Solar Cell

ST. LOUIS, Oct. 24, 2006 -- Boeing [NYSE: BA] today announced that Spectrolab, Inc., a wholly-owned subsidiary, has produced its two millionth multi-junction, gallium-arsenide solar cell.

Spectrolab, the industry-leading solar cell producer, pioneered this type of cell in 1983, perfecting the technology for production several years later. Spectrolab's advancements gave satellite operators the option of doubling satellite power and increasing potential revenue or controlling costs by reducing spacecraft size without sacrificing capability.

"We're very proud of Spectrolab's heritage in the space industry and the integral role it has played in making space-based solar power what it is today," said Howard Chambers, vice president and general manager, Boeing Space and Intelligence Systems. "Spectrolab's on-orbit products are creating more than 575 kilowatts of total power for agencies like NASA and the National Oceanic and Atmospheric Administration, and high performance commercial spacecraft for customers such as DIRECTV and Thuraya."

Spectrolab also is the leading solar cell supplier for numerous government and national security programs.

Spectrolab manufactured its two millionth multi-junction solar cell as it celebrates its 50th anniversary. For the past five decades, Spectrolab's technological advancements have driven space solar cell efficiencies to more than 28 percent. Today, Spectrolab cells power 60 percent of all satellites orbiting the Earth as well as the International Space Station.

Six of the seven programs currently operating on or in orbit around Mars have Spectrolab-built solar cells and panels. The Mars Global Surveyor, for example, has exceeded its mission life-span by about six years and continues to function nominally. The Spectrolab-built solar cells and panels on the rovers Spirit and Opportunity have both operated well beyond their 90-day planned mission life, and have conducted research operations for more than 33 months on the Red Planet. In all, Spectrolab's products have powered more than 525 satellites and interplanetary missions over the past half-century

"I'd like to thank the U.S. Air Force and NASA for their visionary support of Spectrolab and early adoption of the multi-junction solar cell technology," said David Lillington, president of Spectrolab. "We are laying the groundwork for the future. In 2007, we'll offer our next-generation triple junction solar cell, which will be 30 percent efficient. Long-term, we plan to achieve 40 percent efficiency space solar cells through further advancements in our multi-junction technology."

Spectrolab also is a leader in multi-junction solar cells for use in terrestrial solar concentrators, which hold record-breaking efficiencies of 39 percent. Spectrolab is working with several domestic and international solar concentrator manufacturers on clean, renewable solar energy solutions. Currently, the company's solar cells are delivering power to a 1-kilowatt solar concentrator test system in the Arizona desert, which has functioned optimally for more than two years. Spectrolab's terrestrial concentrator cells also are generating power in a 33-kilowatt full-scale concentrator system in the Australian desert.


A unit of The Boeing Company, Boeing Integrated Defense Systems is one of the world's largest space and defense businesses. Headquartered in St. Louis, Boeing Integrated Defense Systems is a $30.8 billion business. It provides network-centric system solutions to its global military, government, and commercial customers. It is a leading provider of intelligence, surveillance and reconnaissance systems; the world's largest military aircraft manufacturer; the world's largest satellite manufacturer; a foremost developer of advanced concepts and technologies; a leading provider of space-based communications; the primary systems integrator for U.S. missile defense; NASA's largest contractor; and a global leader in sustainment solutions and launch services.