FIELD: various technological processes.
SUBSTANCE: use to create optoelectronic products operating in the near infrared region. Essence of the invention consists in the fact that the method of producing thin films of lead sulphide, which are photosensitive in the near infrared range, involves precipitation thereof from an aqueous solution of a mixture of a lead salt, sodium citrate, ammonium hydroxide, thiourea, ammonium iodide, wherein lanthanum salt is additionally added to reaction mixture in amount of 0.0005 to 0.005 mol/l at content of ammonium iodide in range of 0.16–0.18 mol/l to increase photosensitive properties of films.
EFFECT: possibility of increasing photosensitive properties of lead sulphide films.
1 cl, 1 dwg
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