We obtained optically transparent n-type semiconductor films of lead zirconate titanate Pb(ZrxTi1–x)O3 by reaction of individual sols of hydrated titanium dioxide and zirconium dioxide with lead ions, followed by heat treatment at 500–800°C. We established that these films, when in contact with an aqueous electrolyte, can generate a photopotential and a photocurrent when exposed to UV radiation (250–400 nm). The average values of the bandgap energy from optical absorption and photocurrent spectroscopy data are slightly dependent on the composition of the lead zirconate titanate solid solution (they increase by 0.07–0.12 eV on going from Pb(Zr0.2Ti0.8)O3 to Pb(Zr0.52Ti0.48)O3), which may be connected with features of the band structure in these materials.
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Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 81, No. 5, pp. 793–799, September–October, 2014.
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Poznyak, S.K., Kulak, A.I. Optical and Photoelectrochemical Properties of Lead Zirconate Titanate Thin Films Obtained by the Sol-Gel Method. J Appl Spectrosc 81, 866–872 (2014). https://doi.org/10.1007/s10812-014-0019-2
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DOI: https://doi.org/10.1007/s10812-014-0019-2