Another way to make a thin film is to alternatively soak in samarium(III) chloride tartaric acid complex, and sodium thiosulfate.

[1] The low temperature α form crystallises in the orthorhombic crystal system.

[2] Samarium(III) sulfide is a semiconductor with a band gap of 1.7 eV.

[3] As a thin film on high area electrodes, it is under investigation as a super capacitor dielectric, with specific capacitances of up to 360 Farads per gram.

[4] Related samarium sulfides include the monosulfide SmS and the mixed valent Sm3S4 which are also semiconductors.