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ZnO nanowalls (NWLs) represent a non-toxic, Earth abundant, high surface-to-volume ratio, semiconducting nanostructure which already showed potential applications in biosensing, environmental monitoring and energy. Low-cost synthesis of these nanostructures is extremely appealing for large scale upgrading of laboratory results and its production has to be tested at the nanoscale, at least in terms of chemical purity and crystallographic orientation. Here we produced by using chemical bath deposition (CBD) synthesis followed by a thermal treatment at 300 C, pure and texturized ZnO NWLs. We detailed the NWLs formation process and the new obtained structure at the nanoscale, by means of scanning and transmission electron microscopy in combination with X-ray diffraction and Rutherford backscattering spectrometry. We show that only after a 300 C …
IOP Publishing
Publication date: 
23 Jan 2018

Vincenzina Strano, Corrado Spinella, Giuseppe Nicotra, Salvatore Mirabella

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