Gallium arsenide thin film solar cell array for space and preparation method thereof

The invention discloses a gallium arsenide thin film solar cell array for space and a preparation method thereof. The preparation method comprises the following steps of: 1) coating a liquid siliconerubber on a surface of a flexible substrate; 2) laying a thin film solar cell string on a corresponding uncured surface of the silicone rubber and performing large-area vacuum pressurizing curing; 3)coating the liquid transparent silicone rubber at the surface of the thin film solar cell array area after vacuum pressurizing curing; 4) laying a flexible transparent composite film to the corresponding uncured surface of the liquid transparent silicone rubber and performing vacuum pressurizing curing; and 5) finally, performing excessive glue scrubbing and performance test after curing to complete preparation of the flexible thin film solar cell array. The method is efficient, light, flexible and windable, is suitable for features of heterogenous hook face mounting, has excellent space environmental stability and hig