Influence of ZnSnO x barrier layer on the texturing of ZnO:Al layers for light management in flexible thin-film silicon solar cells

Transparent polymer films such as polyethylene terephthalate (PET) present a cost efficient substrate material for flexible solar cells. In addition to certain process temperature limitations, these materials are permeable to moisture and/or oxygen, and additional barrier layers are required to prevent the diffusion of contaminating atoms into the photovoltaic device. In this study, the influence of a ZnSnOx barrier layer deposited on PET substrates on the properties of the subsequently grown low temperature (