WO9627207-A  APPLIED PHYSICS LETTERS, vol. 56, no. 24, 11 Juin 1990, pages 2419-2421, XP000174383 YABLONOVITCH E ET AL: "VAN DER WAALS BONDING OF GAAS EPITAXIAL LIFTOFF FILMS ONTO ARBITRARY SUBSTRATES";  CONFERENCE RECORD OF THE TWENTY THIRD IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 1993 (CAT. NO.93CH3283-9), PROCEEDINGS OF 23RD IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE, LOUISVILLE, KY, USA, 10-14 MAY 1993, ISBN 0-7803-1220-1, 1993, NEW YORK, NY, USA, IEEE, USA, pages 1343-1346, XP002005372 LUSH G B ET AL: "Thin-film GaAs solar cells by epitaxial lift-off"WO9627207-A1  C. Juang et coll., Selective Etching of GaAs and Al0,3Ga0,70 as with Citric Acid/Hydrogen Peroxide Solutions, publie dans le J. Vac. Sci. Technol. B 8(5) 1122, (1990);  K. Hikosaka et coll., Selective Dry Etching of AlGaAs-GaAs Heterojunction, publie dans Jap. J. Appl. Phys., 20, no.11, L. 847 (1981);  APPLIED PHYSICS LETTERS, vol. 56, no. 24, 11 Juin 1990, pages 2419-2421, XP000174383 YABLONOVITCH E ET AL: &quot;VAN DER WAALS BONDING OF GAAS EPITAXIAL LIFTOFF FILMS ONTO ARBITRARY SUBSTRATES&quot;;  APPLIED PHYSICS LETTERS, vol. 56, no. 24, 11/06/1990, pages 2419-2421, XP000174383 YABLONOVITCH E ET AL: "VAN DER WAALS BONDING OF GAAS EPITAXIAL LIFTOFF FILMS ONTO ARBITRARY SUBSTRATES";  CONFERENCE RECORD OF THE TWENTY THIRD IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 1993 (CAT. NO.93CH3283-9), PROCEEDINGS OF 23RD IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE, LOUISVILLE, KY, USA, 10-14 MAY 1993, ISBN 0-7803-1220-1, 1993, NEW YORK, NY, USA, IEEE, USA, pages 1343-1346, XP002005372 LUSH G B ET AL: &quot;Thin-film GaAs solar cells by epitaxial lift-off&quot;;  CONFERENCE RECORD OF THE TWENTY THIRD IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 1993 (CAT. NO.93CH3283-9), PROCEEDINGS OF 23RD IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE, LOUISVILLE, KY, USA, 10/05/1993-14/05/1993, ISBN 0-7803-1220-1, 1993, NEW YORK, NY, USA, IEEE, USA, pages 1343-1346, XP002005372 LUSH G B ET AL: "Thin-film GaAs solar cells by epitaxial lift-off"FR2731109-A1  APPLIED PHYSICS LETTERS, vol. 56, no. 24, 11 Juin 1990 pages 2419-2421, XP 000174383 YABLONOVITCH E ET AL &apos;VAN DER WAALS BONDING OF GAAS EPITAXIAL LIFTOFF FILMS ONTO ARBITRARY SUBSTRATES&apos;;  APPLIED PHYSICS LETTERS, vol. 56, no. 24, 11/06/1990 pages 2419-2421, XP 000174383 YABLONOVITCH E ET AL "VAN DER WAALS BONDING OF GAAS EPITAXIAL LIFTOFF FILMS ONTO ARBITRARY SUBSTRATES";  CONFERENCE RECORD OF THE TWENTY THIRD IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 1993 (CAT. NO.93CH3283-9), PROCEEDINGS OF 23RD IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE, LOUISVILLE, KY, USA, 10-14 MAY 1993, ISBN 0-7803-1220-1, 1993, NEW YORK, NY, USA, IEEE, USA, pages 1343-1346, LUSH G B ET AL &apos;Thin-film GaAs solar cells by epitaxial lift-off&apos;;  CONFERENCE RECORD OF THE TWENTY THIRD IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 1993 (CAT. NO.93CH3283-9), PROCEEDINGS OF 23RD IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE, LOUISVILLE, KY, USA, 10/05/1993-14/05/1993, ISBN 0-7803-1220-1, 1993, NEW YORK, NY, USA, IEEE, USA, pages 1343-1346, LUSH G B ET AL "Thin-film GaAs solar cells by epitaxial lift-off"