发明名称 |
FLUORESCENCE EMITTING SILICON NANOPARTICLE AND METHOD FOR PRODUCING THE SAME |
摘要 |
PROBLEM TO BE SOLVED: To provide a silicon nanoparticle which has such roughly equal particle size that a variation width (difference between the maximum diameter and the minimum diameter) of particle size is substantially less than 0.5 nm, and to provide a method for producing the silicon nanoparticle. SOLUTION: The fluorescence emitting silicon nanoparticle having roughly equal particle size can be produced by performing the following processes (1) to (3), in the order, of: (1) forming the silicon nanoparticle coated with silicon oxide film on an Si substrate by jointly using a high-frequency sputtering method and heat treatment; (2) treating the Si substrate with the obtained silicon nanoparticles covered with the silicon oxide film with a hydrofluoric acid aqueous solution to isolate and diffuse the silicon nanoparticle from the substrate; and (3) treating a dispersion liquid containing the silicon nanoparticle by combining high-speed centrifuging and ultracentrifuging to classify the silicon nanoparticle in accordance with the particle size. COPYRIGHT: (C)2011,JPO&INPIT |
申请公布号 |
JP2010254972(A) |
申请公布日期 |
2010.11.11 |
申请号 |
JP20100073977 |
申请日期 |
2010.03.29 |
申请人 |
NATIONAL INSTITUTE FOR MATERIALS SCIENCE |
发明人 |
SATO KEISUKE;YAMAUCHI YUSUKE;FUKADA NAOKI |
分类号 |
C09K11/59;B82B1/00;B82B3/00;C09K11/08 |
主分类号 |
C09K11/59 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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