Abstract
Films of bismuth oxoiodide and thioiodide BiOI and BiSI as a light absorber for solar cells were synthesized and characterized. The influence of the duration of the chemical deposition process on the composition and morphology of the obtained films has been studied. It has been shown that BiOI is formed at a short deposition time, while BiOI and BiSI joint growth with an increase in the deposition time. The synthesized BiOI/BiSI photoelectrodes demonstrate a developed morphology, the invariance of the surface microstructure during stationary polarization measurements, as well as a heightened photocorrosion resistance. The high stability of operation in a photoelectrochemical cell reveals the potential of the new BiOI/BiSI light-absorbing material as a promising semiconductor for solar cells, photoelectrochemical sensors, detector and photocatalysts.
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