Objetivo THE PROJECT AIMS TO REALIZE EFFICIENT THIN FILM SOLAR CELLS WITH CHALCOPYRITE SEMICONDUCTORS AS ABSORBER MATERIAL. EITHER SINGLE JUNCTION DEVICES WITH OPTIMIZED BANGAP OR TANDEM SYSTEMS ARE DEVELOPED. THE WORK IS PERFORMED IN COLLABORATION WITH THE UNIVERSITIES OF PARMA (PROF. ROMEO), MONTPELLIER (PROF. SAVELLI), NEWCASTLE POLYTECHNIQUE (PROF. HILL), AND ENSC DE PARIS (DR. VEDEL). CU(GA,IN)SE2 THIN FILMS ARE DEPOSITED BY SIMULTANEOUS VACUUM EVAPORATION OF THE SINGLE ELEMENTS FROM SPECIAL SOURCES. FILMS WITH COMPOSITIONS Y IN THE WHOLE RANGE OF THE QUATERNARY SYSTEM CUGAY IN1-Y SE2 HAVE BEEN INVESTIGATED. THE OPTICAL BANDGAP VARIES NEARLY LINEARLY WITH COMPOSITION FROM 1.04 TO 1.68 EV. ONLY P-TYPE CONDUCTIVITY STRONGLY DEPENDENT ON THE CU/GA + IN RATIO HAVE BEEN OBSERVED. HETEROJUNCTIONS HAVE BEEN FABRICATED BY EVAPORATING GA-DOPED (ZN, CD)S OR ZNO FILMS ONTO THE ABSORBER LAYER. SOLAR CELL EFFICIENCIES OF CELLS WITH COMPOSITIONS Y =0, 0.5 1 ARE 8.4 2.7 5.8 %. FIRST RESULTS ON FILMS FABRICATED BY SELENIZATION OF METAL FILMS HAVE DEMONSTRATED THE FEASIBILITY OF THIS POSSIBLY LOW-COST METHOD. Ámbito científico engineering and technologymaterials engineeringcoating and filmsnatural sciencesphysical scienceselectromagnetism and electronicssemiconductivity Programa(s) FP1-ENNONUC 3C - Research and development programme (EEC) in the field of Non-Nuclear Energy, 1985-1988 Tema(s) Data not available Convocatoria de propuestas Data not available Régimen de financiación CSC - Cost-sharing contracts Coordinador UNIVERSITAET STUTTGART Aportación de la UE Sin datos Dirección Keplerstrasse 7 70174 STUTTGART Alemania Ver en el mapa Coste total Sin datos
