H - Electricity – 01 – L
Patent
H - Electricity
01
L
23/1, 18/576, 11
H01L 31/06 (2006.01) C01B 25/00 (2006.01) C01B 25/02 (2006.01) C01B 25/04 (2006.01) C01B 25/08 (2006.01) C03C 17/22 (2006.01) C09K 21/04 (2006.01) C23C 14/06 (2006.01) C23C 14/54 (2006.01) C30B 23/02 (2006.01) C30B 25/02 (2006.01) D01F 9/08 (2006.01) H01L 29/24 (2006.01) H01L 31/032 (2006.01)
Patent
CA 1215521
ABSTRACT High phosphorus polyphosphides, namely MPx, where M is an alkali metal (Li, Na, K, Rb, and Cs) or metals mimicking the bonding behavior of an alkali metal, and x = 7 to 15 or very much greater than 15 (new forms of phosphorus) are use- ful semiconductors in their crystalline, polycrystalline and amorphous forms (boules and films). MP15 appears to have the best properties and KP15 is the easier to synthesize. P may include other pnictides as well as other trivalent atom- ic species. Resistance lowering may be accomplished by doping with Ni, Fe, Cr, and other metals having occupied d or f outer electronic levels; or by incorporation of As and other pnictides. Top contacts forming function devices doped with Ni and employing Ni as a back contact comprise Cu, Al, Mg, Ni, Au, Ag, and Ti. Photovoltaic, photoresis- tive, and photoluminescent devices are also disclosed. All semiconductor applications appear feasible. These semiconductors belong to the class of polymer forming, trivalent atomic species forming homatomic, cova- lent bonds having a coordination number slightly less than 3. The predominant local order appears to be all parallel pentagonal tubes in all forms, including amorphous, except for the monoclinic and twisted fiber allotropes of phosphor- us . Large crystal monoclinic phosphorus (a birefringent material) in two habits, a twisted fiber phosphorus allo- trope and a star shaped fibrous high phosphorus material are also disclosed. Single and multiple source vapor transport, condensed phase, melt quench, flash evaporation, chemical vapor depo- sition, and molecular flow deposition may be employed in synthesizing these materials. Vapor transport may be em- ployed to purify phosphorus. The materials may be employed as protective coatings, optical coatings, fire retardants, fillers and reinforcing fillers for plastics and glasses, antireflection coatings for infrared optics, infrared transmitting windows, and optical rotators.
418657
Baumann John A.
Kuck Mark A.
Michel Christian G.
Raccah Paul M.
Schachter Rozalie
Gowling Lafleur Henderson Llp
Stauffer Chemical Company
LandOfFree
Catenated phosphorus materials, their preparation and use,... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Catenated phosphorus materials, their preparation and use,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Catenated phosphorus materials, their preparation and use,... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1187820