INDIUM TIN OXIDE POWDER, PRODUCTION METHOD THEREFOR, TRANSPARENT CONDUCTIVE COMPOSITION, AND INDIUM TIN HYDROXIDE

Title:

INDIUM TIN OXIDE POWDER, PRODUCTION METHOD THEREFOR, TRANSPARENT CONDUCTIVE COMPOSITION, AND INDIUM TIN HYDROXIDE

Document Type and Number:

WIPO Patent Application WO/2012/014337

Kind Code:

A1

Abstract:

One form of an indium tin oxide powder has a specific surface area of at least 55 m2/g, and has a bright yellow to yellowish-red color, or a full width at half-maximum for the peak of the (222) plane of not more than 0.6° on an X-ray diffraction chart. Another form of the indium tin oxide powder has a modified surface, a specific surface area of at least 40 m2/g, a full width at half-maximum for the peak of the (222) plane of not more than 0.6° on an X-ray diffraction chart, and is a dark blue color (L=30 or less in the Lab Color System). The production method for the indium tin oxide powder comprises: a step in which indium tin hydroxide having a bright yellow to yellowish-red color in a dry powdered state is co-precipitated using a divalent tin compound, under conditions in which the pH is 4.0 to 9.3, and the solution temperature is at least 5°C; and step in which the indium tin hydroxide is dried and sintered.

Inventors:

SHIRAISHI SHINYA (JP)
NARUMI MEGUMI (JP)

Application Number:

PCT/JP2010/068872

Publication Date:

February 02, 2012

Filing Date:

October 25, 2010

Export Citation:

Click for automatic bibliography generation Help

Assignee:

MITSUBISHI MATERIALS CORP (JP)
MITSUBISHI MAT ELECT CHEM CO (JP)
SHIRAISHI SHINYA (JP)
NARUMI MEGUMI (JP)

International Classes:

C01G19/00

Foreign References:

JP2000003618A	2000-01-07
JP2008110915A	2008-05-15
JP2007269543A	2007-10-18
JP2001058822A	2001-03-06
JP2007145712A	2007-06-14
JPH0319551B2	1991-03-15
JP2005322626A	2005-11-17
JP2005232399A	2005-09-02
JP2003215328A	2003-07-30

Other References: