We can supply you semi-conductive and photovoltaic materials, such as PbS, We can supply you Lead sulfide (PbS), Cadmium sulfide(CdS), Aluminum trisulfide (Al2S3), germanium disulfide(GeS2), Bismuth trisulfide (Bi2S3), antimony trisulfide(Sb2S3). Welcome to order and inquiry!