Title:
SEMICONDUCTOR NANOPARTICLES AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2010/098369
Kind Code:
A1
Abstract:
A liquid mixture is prepared by mixing copper acetate (II), zinc acetate (II) and tin acetate (IV) in such amounts that the total amount of metal ions is 2.0 × 10-4 mol and the molar ratio among the metal ions, namely Cu:Zn:Sn is 2:1:1, and adding 2.0 cm3 of oleylamine thereto. Separately, another liquid mixture is prepared by adding 1.0 cm3 of oleylamine to 2.0 × 10-4 mol of a sulfur powder. The liquid mixtures are separately heated and melted at 60˚C. The two solutions are mixed at room temperature, and after reducing the pressure in the test tube, nitrogen is filled thereinto. After being heated at 240˚C for 30 minutes, the mixed solution is left unattended until the mixed solution is at room temperature. The thus-obtained product is centrifugalized and separated into a supernatant liquid and a sediment. The separated supernatant liquid is filtrated and methanol is added to the resulting filtrate, so that a deposit is formed. The deposit is collected by centrifugal separation, and chloroform is added to the deposit so that the deposit is dissolved thereinto, thereby obtaining a semiconductor nanoparticle solution.
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Inventors:
TORIMOTO TSUKASA (JP)
OKAZAKI KEN-ICHI (JP)
KAMEYAMA TATSUYA (JP)
OSAKI TAKAAKI (JP)
KUWABATA SUSUMU (JP)
KUDO AKIHIKO (JP)
OKAZAKI KEN-ICHI (JP)
KAMEYAMA TATSUYA (JP)
OSAKI TAKAAKI (JP)
KUWABATA SUSUMU (JP)
KUDO AKIHIKO (JP)
Application Number:
PCT/JP2010/052917
Publication Date:
September 02, 2010
Filing Date:
February 25, 2010
Export Citation:
Assignee:
UNIV NAGOYA NAT UNIV CORP (JP)
UNIV OSAKA (JP)
UNIV TOKYO SCI EDUC FOUND (JP)
TORIMOTO TSUKASA (JP)
OKAZAKI KEN-ICHI (JP)
KAMEYAMA TATSUYA (JP)
OSAKI TAKAAKI (JP)
KUWABATA SUSUMU (JP)
KUDO AKIHIKO (JP)
UNIV OSAKA (JP)
UNIV TOKYO SCI EDUC FOUND (JP)
TORIMOTO TSUKASA (JP)
OKAZAKI KEN-ICHI (JP)
KAMEYAMA TATSUYA (JP)
OSAKI TAKAAKI (JP)
KUWABATA SUSUMU (JP)
KUDO AKIHIKO (JP)
International Classes:
C01G3/12; C01B19/00; C01B19/04; C01G19/00; H01L31/04
Domestic Patent References:
| WO2007075886A2 | 2007-07-05 | |||
| WO2009006910A2 | 2009-01-15 |
Foreign References:
| JP2005325016A | 2005-11-24 |
Other References:
L.GUEN ET AL.: "Electrical, Magnetic, and EPR Studies of the Quaternary Chalcogenides Cu2AIIBIVX4 Prepared by Iodine Transport", JOURNAL OF SOLID STATE CHEMISTRY, vol. 35, no. 1, 1 November 1980 (1980-11-01), pages 10 - 21
I.D.OLEKSEYUK ET AL.: "Single crystal preparation and crystal structure of the Cu2Zn/Cd,Hg/SnSe4 compounds", JOURNAL OF ALLOYS AND COMPOUNDS, vol. 340, no. 1-2, 26 June 2002 (2002-06-26), pages 141 - 145
E.MELLIKOV ET AL.: "Monograin materials for solar cells", SOLAR ENERGY MATERIALS & SOLAR CELLS, vol. 93, no. 1, January 2009 (2009-01-01), pages 65 - 68
I.D.OLEKSEYUK ET AL.: "Single crystal preparation and crystal structure of the Cu2Zn/Cd,Hg/SnSe4 compounds", JOURNAL OF ALLOYS AND COMPOUNDS, vol. 340, no. 1-2, 26 June 2002 (2002-06-26), pages 141 - 145
E.MELLIKOV ET AL.: "Monograin materials for solar cells", SOLAR ENERGY MATERIALS & SOLAR CELLS, vol. 93, no. 1, January 2009 (2009-01-01), pages 65 - 68
Attorney, Agent or Firm:
ITEC INTERNATIONAL PATENT FIRM (JP)
Patent business corporation Itec international patent firm (JP)
Patent business corporation Itec international patent firm (JP)
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