Back-contact solar cell and preparation method thereof, and photovoltaic module

Abstract

Abstract The disclosure provides a back-contact solar cell and a preparation method thereof, and a photovoltaic module. The back-contact solar cell includes a crystalline silicon substrate and a first functional film, the back side of the crystalline silicon substrate is provided with a first region and an isolation region, the isolation region is disposed on one side of the first region; and the first functional film is stacked on the first region, the first functional film is provided with a light-trapping portion close to the isolation region, the light-trapping portion is provided with at least one of a light-trapping portion close to the isolation region, the light-trapping portion is provided with at least one of a light-trapping valley and a light-trapping peak. Abstract 20 25 27 97 29 11 D ec 2 02 5 A b s t r a c t 2 0 2 5 2 7 9 7 2 9 1 1 D e c 2 0 2 5 Drawings Fig. 1 1 / 81 / 8 Z x 140 130 100 111 121 112 122 110 120 113 123 114 124 150 160 101 103 102 103 101 20 25 27 97 29 11 D ec 2 02 5 1 1 D e c 2 0 2 5 Z 2 0 2 5 2 7 9 7 2 9 1 2 1 1 1 2 1 2 2 1 1 0 1 2 0 1 1 3 1 2 3 1 1 4 1 2 4 1 5 0 1 6 0 1 0 1 1 0 3 1 0 2 1 0 3 1 0 1

Images