WO2004038745-A2  BURNSIDE S ET AL: "DEPOSITION AND CHARACTERIZATION OF SCREEN-PRINTED POROUS MULTI-LAYER THICK FILM STRUCTURES FROM SEMICONDUCTING AND CONDUCTING NANOMATERIALS FOR USE IN PHOTOVOLTAIC DEVICES" JOURNAL OF MATERIALS SCIENCE. MATERIALS IN ELECTRONICS, CHAPMAN AND HALL, LONDON, GB, Bd. 11, Nr. 4, Juni 2000 (2000-06), Seiten 355-362, XP008013241 ISSN: 0957-4522;  GRATZEL M ET AL: "Low cost photovoltaic modules based on dye sensitized nanocrystalline titanium dioxide and carbon powder" SOLAR ENERGY MATERIALS AND SOLAR CELLS, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, NL, Bd. 44, Nr. 1, 30. Oktober 1996 (1996-10-30), Seiten 99-117, XP004053970 ISSN: 0927-0248;  PATENT ABSTRACTS OF JAPAN Bd. 2002, Nr. 07, 3. Juli 2002 (2002-07-03) & JP 2002 093476 A (DAINIPPON PRINTING CO LTD), 29. Maerz 2002 (2002-03-29)WO2004038745-A3  BURNSIDE S ET AL: "DEPOSITION AND CHARACTERIZATION OF SCREEN-PRINTED POROUS MULTI-LAYER THICK FILM STRUCTURES FROM SEMICONDUCTING AND CONDUCTING NANOMATERIALS FOR USE IN PHOTOVOLTAIC DEVICES" JOURNAL OF MATERIALS SCIENCE. MATERIALS IN ELECTRONICS, CHAPMAN AND HALL, LONDON, GB, Bd. 11, Nr. 4, Juni 2000 (2000-06), Seiten 355-362, XP008013241 ISSN: 0957-4522;  GRATZEL M ET AL: "Low cost photovoltaic modules based on dye sensitized nanocrystalline titanium dioxide and carbon powder" SOLAR ENERGY MATERIALS AND SOLAR CELLS, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, NL, Bd. 44, Nr. 1, 30. Oktober 1996 (1996-10-30), Seiten 99-117, XP004053970 ISSN: 0927-0248;  PATENT ABSTRACTS OF JAPAN Bd. 2002, Nr. 07, 3. Juli 2002 (2002-07-03) & JP 2002 093476 A (DAINIPPON PRINTING CO LTD), 29. Maerz 2002 (2002-03-29);  BURNSIDE S ET AL: "DEPOSITION AND CHARACTERIZATION OF SCREEN-PRINTED POROUS MULTI-LAYER THICK FILM STRUCTURES FROM SEMICONDUCTING AND CONDUCTING NANOMATERIALS FOR USE IN PHOTOVOLTAIC DEVICES", JOURNAL OF MATERIALS SCIENCE. MATERIALS IN ELECTRONICS, CHAPMAN AND HALL, LONDON, GB, vol. 11, no. 4, June 2000 (2000-06-01), pages 355 - 362, XP008013241, ISSN: 0957-4522,relevantClaims[19,22],relevantPassages[&lt;pp&gt;W&lt;/pp&gt;];  GRATZEL M ET AL: "Low cost photovoltaic modules based on dye sensitized nanocrystalline titanium dioxide and carbon powder", SOLAR ENERGY MATERIALS AND SOLAR CELLS, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, NL, vol. 44, no. 1, 30 October 1996 (1996-10-30), pages 99 - 117, XP004053970, ISSN: 0927-0248,relevantPassages[&lt;figure&gt;6&lt;/figure&gt;];  PATENT ABSTRACTS OF JAPAN vol. 2002, no. 07 3 July 2002 (2002-07-03),relevantClaims[1,19],relevantPassages[&lt;pp&gt;A&lt;/pp&gt;]