(JP9074065-A)      Cpd. metal sulphide semiconductor thin films are formed on a substrate by thermal decomposition of a sulphur-contg. organometallic cpd. of at least one of Cu, Zn, Cd, Hg and Pb.    Also claimed are: (i) the prodn. of the thin films by thermal evapn. and deposition of the organometallic cpd. and simultaneously growing metal sulphide crystals by thermal decomposition; (ii) forming the thin films by coating an organic solvent soln. of the organometallic cpd. on the substrate by printing, and effecting thermal decomposition; (iii) a photoelectric device prepd. by forming a cpd. semiconductor thin film by any of the above processes on the surface of an electrode of Cu, Ag, Pt, Pd, Mo etc., C (mainly graphite), Sn oxide, ITO etc. formed on a ceramic, glass or resin sheet; and (iv) a solar cell with a p-n junction formed by depositing p-type CdTe semiconductor by printing and sintering or by evapn. on an n-type CdS film window layer formed on an ITO or tin oxide electrode on a transparent electrically insulating sheet of soda lime glass or polyimide resin.    ADVANTAGE -   Uniform and large area thin films can be produced using relatively low cost prodn. equipment operated in normal atmospheric conditions without using conventional and expensive vacuum devices and high temp. inert gas atmospheres. The solar cells are inexpensive and have a high photoelectric conversion efficiency.    (JP10004206-A)      Cpd. metal sulphide semiconductor thin films are formed on a substrate by thermal decomposition of a sulphur-contg. organometallic cpd. of at least one of Cu, Zn, Cd, Hg and Pb.    Also claimed are: (i) the prodn. of the thin films by thermal evapn. and deposition of the organometallic cpd. and simultaneously growing metal sulphide crystals by thermal decomposition; (ii) forming the thin films by coating an organic solvent soln. of the organometallic cpd. on the substrate by printing, and effecting thermal decomposition; (iii) a photoelectric device prepd. by forming a cpd. semiconductor thin film by any of the above processes on the surface of an electrode of Cu, Ag, Pt, Pd, Mo etc., C (mainly graphite), Sn oxide, ITO etc. formed on a ceramic, glass or resin sheet; and (iv) a solar cell with a p-n junction formed by depositing p-type CdTe semiconductor by printing and sintering or by evapn. on an n-type CdS film window layer formed on an ITO or tin oxide electrode on a transparent electrically insulating sheet of soda lime glass or polyimide resin.    ADVANTAGE -   Uniform and large area thin films can be produced using relatively low cost prodn. equipment operated in normal atmospheric conditions without using conventional and expensive vacuum devices and high temp. inert gas atmospheres. The solar cells are inexpensive and have a high photoelectric conversion efficiency.    (US5714391-A)      Cpd. metal sulphide semiconductor thin films are formed on a substrate by thermal decomposition of a sulphur-contg. organometallic cpd. of at least one of Cu, Zn, Cd, Hg and Pb.    Also claimed are: (i) the prodn. of the thin films by thermal evapn. and deposition of the organometallic cpd. and simultaneously growing metal sulphide crystals by thermal decomposition; (ii) forming the thin films by coating an organic solvent soln. of the organometallic cpd. on the substrate by printing, and effecting thermal decomposition; (iii) a photoelectric device prepd. by forming a cpd. semiconductor thin film by any of the above processes on the surface of an electrode of Cu, Ag, Pt, Pd, Mo etc., C (mainly graphite), Sn oxide, ITO etc. formed on a ceramic, glass or resin sheet; and (iv) a solar cell with a p-n junction formed by depositing p-type CdTe semiconductor by printing and sintering or by evapn. on an n-type CdS film window layer formed on an ITO or tin oxide electrode on a transparent electrically insulating sheet of soda lime glass or polyimide resin.    ADVANTAGE -   Uniform and large area thin films can be produced using relatively low cost prodn. equipment operated in normal atmospheric conditions without using conventional and expensive vacuum devices and high temp. inert gas atmospheres. The solar cells are inexpensive and have a high photoelectric conversion efficiency.