Method of preparing ultra fine particle of metal chalcogenide

Details Method of preparing ultra fine particle of metal chalcogenide Method of preparing ultra fine particle of metal chalcogenide

2005-08-09

2005-08-09

Meeks, Timothy (Department: 1762)

Coating processes

Coating by vapor, gas, or smoke

Metal coating

C427S071000, C427S180000

Reexamination Certificate

active

06926927

ABSTRACT:
A chalcogen film is applied to an acute tip of a glass fiber and the acute tip is held in physical contact with a metal layer so as to induce diffusional reaction for generation of a metal chalcogenide nano-particle or nano-particles at the acute tip. In the case where the chalcogen film is directly applied to the acute tip, the generated nano-particle or nano-particles are transferred from the acute tip to a corresponding part of the metal layer. When a silane-adsorbed film is pre-formed on the acute tip before application of the chalcogen film, the generated nano-particle or nano-particles are fixed to the acute tip. The nano-particles are several to tens in number with very narrow distribution of particle size. Since particle size and fixed position of the nano-particle or nano-particles can be controlled with high freedom, the nano-particle or nano-particles are useful as a light-emitting or photo-detecting element.

REFERENCES:
patent: 6566665 (2003-05-01), Baglin et al.
patent: 6635311 (2003-10-01), Mirkin et al.
patent: 60-108339 (1985-06-01), None
patent: 08-024626 (1996-01-01), None
patent: 10-267946 (1998-10-01), None
patent: WO 9921934 (1999-05-01), None

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