continued from part 1 - Controller General of Patents, Designs, and ...

(12) PATENT APPLICATION PUBLICATION (21) Application No.6795/DELNP/2008 A
(19) INDIA
(22) Date of filing of Application :07/08/2008 (43) Publication Date : 24/10/2008
(54) Title of the invention : "PHOTOSENSITIZER DYE"
(51) International classification :H0IM 14/00 (71)Name of Applicant :
(31) Priority Document No :2006-031320 1)SHIMANE PERFECTURAL GOVERNMENT
(32) Priority Date :08/02/2006
Address of Applicant :1, TONO-MACHI, MATSUE-SHI,
(33) Name of priority country :Japan
SHIMANE 690-8501, JAPAN Japan
(86) International Application No :PCT/JP2007/051939 2)OSAKA UNIVERSITY
Filing Date
:05/02/2007 (72)Name of Inventor :
(87) International Publication No :WO 2007/091525 1)KE-JIAN JIANG
(61) Patent of Addition to Application
Number
Filing Date
:NA
:NA
2)SHUJI NODA
3)SHOZO YANAGIDA
(62) Divisional to Application Number :NA
Filing Date
:NA
(57) Abstract :
A theme of the present invention is to provide a new' transition metal complex, useful as a photosensitizer dye for a photoelectric
conversion element having an excellent durability and a high photoelectric conversion characteristic. The present invention provides a
bivalent transition metal complex constituted of (i) a bipyridyl polyacidlc ligand, such as a d1carboxybipyridyl (dcbpy) llgand, as an
adsorption site for adsorption onto titanium dioxide particle surfaces; (ii) a ligand, selected from the group consisting of an
isothiocyanato group, an isocyanato group, and an isoselenocyanato group and enabling absorption and excitation at long wavelengths
and charge transfer; and (ill) a bipyridyl (bpy) ligand, having an alkyl group or an alkoxy group, preferably a long-chain alkyl group,
and a conjugately bonded thienylvinylene group, arainophenylenevinylene group, etc. , and improving an absorbance of a transition
metal complex and imparting stability against nucleophlle to a sensitizer dye that improves an absorption bathochromlc effect.
No. of Pages : 43 No. of Claims : 7
The Patent Office Journal 24/10/2008 26262