Chemistry: electrical and wave energy – Processes and products – Processes of treating materials by wave energy
Patent
1997-04-11
1998-12-15
Gorgos, Kathryn L.
Chemistry: electrical and wave energy
Processes and products
Processes of treating materials by wave energy
20415741, 75689, 75690, 75711, 75362, C01B 5300, C22B 4100, C22B 2500, C21B 1500
Patent
active
058500642
ABSTRACT:
A method is described for the liquid phase synthesis of particles. The particles are composed of silicon or germanium and are optionally produced at sizes such that the particles exhibit quantum size effects. The particles are produced from an organometallic (tetra-organosilicon or tetra-organogermanium) precursors which is dissolved in a solvent that transmits a wavelength of light that photolyzes the precursor. The reaction is carried out under an inert atmosphere. A passivating agent is added to arrest particle growth and impart solubility to the particle. Optionally, a dopant is incorporated into the particle in the course of production so as to modify the electronic properties of the semiconductor particle.
REFERENCES:
patent: 2927052 (1960-03-01), Moudry
patent: 3167525 (1965-01-01), Thomas
patent: 5064517 (1991-11-01), Shimo
Littau et al., A luminscent Silicon Nanocrystal Colloid via a High-Temperature Aerosol Reaction, J. Phys. Chem. 1993, 97, 1224-1230 (no month available).
Bleyand Kauzlarich, A low Temperature Solution Phase Route for the Synthesis of Silicon Nanocrystals, J. Am. chem. Soc. 1996, 118, 12461-12462 *no month available.
Brus, Capped Nanometer Silicon electronic Materials, Adv. Matls. 1993, 5(4) 286-288 *no month available.
Pola et al., ARF laser photolysis of tetra-ethyl and tetravinyl-silane, J. Orgmet. Chem. 1995, 489, C9-C11 *no month available.
Iijima, Fine Particles of Silicon. II., Jap. J. of Appl. Phys. Mar. 1987, 26, 365-372.
Chui et al., Gas Phase Synthesis of Processing of Silicon Nanocrystallites: Characterization by Photoluminescence Emission Spectroscopy, J. Electr. Matls, 1994, 23(3), 347-351 *no month available.
Buss and Babu, Synthesis of silicon nitride particles in pulsed radio frequency plasmas, J. Vac. Sci. Technol. A, Mar./Apr. 1996, 14(2), 577-581.
Heath, A Liquid Solution Phase synthesis of Crystalline Silicon, Science Nov. 1992, 256, 1131-1133.
Lipinski and Le Goues, Chemical Preparation of Crystalline Nanoclusters, Chem. Mater. 1991, 3, 989-992 *no month available.
Takagi et al., Quantum size effects on photoluminescence in ultrafine Si particles, Appl. Phys. Lett. Jun. 1990, 56(24), 2379-2380.
Baggott et al., The photodissociation of phenylsilane at 193 nm, Chem. Phys. Lett., Mar. 1986, 125, 22-26.
Castro and Ying, Synthesis and nitridation of nanocrystalline silicon produced via a tubular forced flow reactor, Mat. Sci. and Eng. 1995, A204, 65-70 *no month available.
Butler and Iachia, The Fundamental Basis for Cyclopolymerization. I . . . , J. Macromol. Sci.-Chem. Aug. 1969, A3(5), 803-819.
Butler et al., "The Fundamental Basis for Cyclopolymerization. I. Unconjugated Chromophoric Interactions Related to Cyclopolymerization", J. Macromo. Sci.-Chem., A3(5), pp. 803-819, Aug. 1969.
Gorgos Kathryn L.
Starfire Electronics Development & Marketing, Ltd.
Wong Edna
LandOfFree
Method for photolytic liquid phase synthesis of silicon and germ does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for photolytic liquid phase synthesis of silicon and germ, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for photolytic liquid phase synthesis of silicon and germ will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1460463