Non-powered solar sails are arousing more and more research interest all over the world in recent
years, which have significant potential applications in deep-space exploration due to their unique advantages. The
structures and materials are critical factors for solar sails. According to the flight environment of solar sails,this paper
introduced their basic structures and mechanisms,and reviewed the deployable boom materials and sail membrane materials
for some typical solar sail designs. The features of different materials and designs were also discussed.