| 1 | Effect of SnCl2 and SnCl4 precursors on SnSx thin films prepared by ultrasonic spray pyrolysis显示文摘Thin films of SnS_x,semiconductors,have been successfully synthesized by ultrasonic spray pyrolysis technique,using two precursors namely:tin(II)chloride and tin(IV)chloride,respectively.The solutions were prepared by the dilution of different Sn molarities of the two precursors separately.The precursor molarities were varied from 0.04 to 0.07 mol/L,whereas that of S was fixed at 0.1 mol/L.The present work focuses on the effect of the different precursor’s molarities on the nature and the properties of the prepared thin films in order to optimize the growth conditions.X-ray diffraction analysis reveals that the precursor’s molarities alter the grain size of the prepared films,which varied from 8 to 14 nm and from 12 to 16 nm,according to the used precursor.The films analysis by SEM,shows that the SnS_2 films are more dense and smooth than the SnS films.The composition of the elements is analysed with an EDX spectrometer,and the obtained result for M_(sn)=0:07 mol/L indicates that the atomic ratio of Sn to S is 51.57:48:43 and 36:64 for films synthesized from the first and second precursors respectively.Electrical measurements show that the conductivity behavior depends on the used precursors and their molarities. | Z.Hadef K.Kamli A.Attaf M.S.Aida B.Chouial | 2017 | Journal of Semiconductors2017，38，6： | 3 |
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