Thin films of silver sulphide have been chemically deposited from an acidic bath, using sodium thiosulphate as a sulphur source, onto glass substrates. Their structural, optical and electrical properties have been studied. The electrical resistivity is of the order of 10(3)-10(4) OMEGA cm, and the optical band gap is estimated to be 0.95 eV. The films are found to be polycrystalline and n-type conductive.