WO2003081684-A1  BAYON ET AL.: 'Preparation of indium hydroxy sulfide Inx(OH)ySz thin films by chemical bath deposition' JOURNAL OF ELECTROCHEMICAL SOCIETY vol. 145, no. 8, August 1998, pages 2775 - 2779, XP002970401;  HARISKOS ET AL.: 'A novel cadmium free buffer layer for Cu(In, Ga)Se2 based solar cells' SOLAR ENERGY MATERIALS & SOLAR CELLS vol. 41/42, 1996, pages 345 - 353, XP004007953;  HARISKOS ET AL.: 'A novel cadmium free buffer layer for Cu(In, Ga)Se2 based solar cells' SOLAR ENERGY MATERIALS & SOLAR CELLS vol. 4142, 1996, pages 345 - 353, XP004007953;  HASHIMOTO ET AL.: 'Chemical bath deposition of CdS buffer layer for CIGS colar cells' SOLAR ENERGY MATERIALS AND SOLAR CELLS vol. 50, 1998, pages 71 - 77, XP004102494;  HUANG ET AL.: 'Study of Cd-free buffer layers using Inx(OH, S)y on CIGS solar cells' SOLAR ENERGY MATERIALS & SOLAR CELLS vol. 69, 2001, pages 131 - 137, XP004242747;  NAKADA ET AL.: 'High-efficiency cadmium-free Cu(In, Ga)Se2 thin-film solar cells with chemically deposited ZnS buffer layers' IEEE TRANSACTIONS ON ELECTRON DEVICES vol. 46, no. 10, October 1999, pages 2093 - 2097, XP000869359;  See also references of EP 1489666A1;  HUANG ET AL.: 'Study of Cd-free buffer layers using Inx(OH, S)y on CIGS solar cells' SOLAR ENERGY MATERIALS&SOLAR CELLS vol. 69, 2001, pages 131 - 137, XP004242747;  HARISKOS ET AL.: 'A novel cadmium free buffer layer for Cu(In, Ga)Se2 based solar cells' SOLAR ENERGY MATERIALS&SOLAR CELLS vol. 41/42, 1996, pages 345 - 353, XP004007953EP1489666-A1  HASHIMOTO Y ET AL: "Chemical bath deposition of Cds buffer layer for CIGS solar cells" SOLAR ENERGY MATERIALS AND SOLAR CELLS, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, NL, vol. 50, no. 1-4, January 1998 (1998-01), pages 71-77, XP004102494 ISSN: 0927-0248;  HUANG C H ET AL: "Study of Cd-free buffer layers using Inx(OH,S)y on CIGS solar cells" September 2001 (2001-09), SOLAR ENERGY MATERIALS AND SOLAR CELLS, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, NL, PAGE(S) 131-137 , XP004242747 ISSN: 0927-0248 * the whole document *;  See also references of WO 03081684A1;  See references of WO 03081684A1EP2216824-A2  YOSHIDA T ET AL: "CHEMICAL BATH DEPOSITION OF BAND GAP TAILORED INDIUM SULFIDE THIN FILMS" PROCEEDINGS OF THE SYMPOSIUM ON PHOTOELECTROCHEMISTRY. PARIS, AUG. 31 19990801 PENNINGTON, NJ, ELECTROCHEMICAL SOC, US, vol. 97, 1 August 1999 (1999-08-01), pages 37-57, XP000792146 ISBN: 978-1-56677-148-1;  HUANG C H ET AL: "Study of Cd-free buffer layers using Inx(OH,S)y on CIGS solar cells" September 2001 (2001-09), SOLAR ENERGY MATERIALS AND SOLAR CELLS, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, NL, PAGE(S) 131-137 , XP004242747 ISSN: 0927-0248 * the whole document *;  SOLAR ENERGY MATERIALS&SOLAR CELLS vol. 69, 2001, pages 131 - 137US7939745-B2  Yamaguchi, Yoshida, Minoura, Structural and compositional analyses on indium sulfide thin films deposited in aqueous chemical bath containing indium chloride and thioacetamide, 2003, Thin Solid Films, 431-432, pp. 354-358.;  Nakada, Furumi, Kunioka, High-Efficiency Cadmium-free Cu(In,Ge)Se2 Thin-Flim Solar Cells with Chemically Deposited ZnS Buffer Layers, Oct. 1999, IEEE Transaction on Electron Devices, vol. 46 No. 10, pp. 2093-2097.;  Hashimoto, Kohara, Negami, Nishitani, Wada, Chemical Bath Deposition of CdS buffer layer for CIGS solar cells, 1998, Solar Energy Materials and Solar Cells, 50, pp. 71-77.;  Dona, Herrero, Chemical Bath Deposition of CdS Thin Films: An Approach to the Chemical Mechanism Through Study of the Film Microstructure, 1997, J. Electrochem. Soc., vol. 144 No. 11, pp. 4081-40941.;  R. Bayon, Preparation of Indium Hydroxy Sulffide Thin Films by Chemical Bath Deposition, J. Electrochem. Soc. vol. 145, No. 8, Aug. 1998, 2775-2779.;  "Study of Cd-free buffer layers using Inx (OH,S)y on CIGS solar cells" by C.H. Huang et al., Solar Energy Materials&Solar Cells 69 (2001) 131-137.EP1489666-B1  HUANG C H ET AL: "Study of Cd-free buffer layers using Inx(OH,S)y on CIGS solar cells" September 2001 (2001-09), SOLAR ENERGY MATERIALS AND SOLAR CELLS, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, NL, PAGE(S) 131-137 , XP004242747 ISSN: 0927-0248 * the whole document *;  HASHIMOTO Y ET AL: "Chemical bath deposition of Cds buffer layer for CIGS solar cells" SOLAR ENERGY MATERIALS AND SOLAR CELLS, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, NL, vol. 50, no. 1-4, January 1998 (1998-01), pages 71-77, XP004102494 ISSN: 0927-0248;  HUANG ET AL.: 'Study of Cd-free buffer layers using Inx(OH, S)y on CIGS solar cells' SOLAR ENERGY MATERIALS&SOLAR CELLS vol. 69, 2001, pages 131 - 137, XP004242747;  BAYON ET AL.: 'Preparation of indium hydroxy sulfide Inx(OH)ySz thin films by chemical bath deposition' JOURNAL OF ELECTROCHEMICAL SOCIETY vol. 145, no. 8, August 1998, pages 2775 - 2779, XP002970401;  HARISKOS ET AL.: 'A novel cadmium free buffer layer for Cu(In, Ga)Se2 based solar cells' SOLAR ENERGY MATERIALS&SOLAR CELLS vol. 41/42, 1996, pages 345 - 353, XP004007953;  NAKADA ET AL.: 'High-efficiency cadmium-free Cu(In, Ga)Se2 thin-film solar cells with chemically deposited ZnS buffer layers' IEEE TRANSACTIONS ON ELECTRON DEVICES vol. 46, no. 10, October 1999, pages 2093 - 2097, XP000869359;  HASHIMOTO ET AL.: 'Chemical bath deposition of CdS buffer layer for CIGS colar cells' SOLAR ENERGY MATERIALS AND SOLAR CELLS vol. 50, 1998, pages 71 - 77, XP004102494EP2216824-B1  YOSHIDA T ET AL: "CHEMICAL BATH DEPOSITION OF BAND GAP TAILORED INDIUM SULFIDE THIN FILMS" PROCEEDINGS OF THE SYMPOSIUM ON PHOTOELECTROCHEMISTRY. PARIS, AUG. 31 19990801 PENNINGTON, NJ, ELECTROCHEMICAL SOC, US, vol. 97, 1 August 1999 (1999-08-01), pages 37-57, XP000792146 ISBN: 978-1-56677-148-1;  HUANG C H ET AL: "Study of Cd-free buffer layers using Inx(OH,S)y on CIGS solar cells" September 2001 (2001-09), SOLAR ENERGY MATERIALS AND SOLAR CELLS, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, NL, PAGE(S) 131-137 , XP004242747 ISSN: 0927-0248 * the whole document *