Ultrasonically Sprayed Nanostructured Perovskite-Type CdSnO₃ Thin Films for Sensing of CWA Simulants

摘要

CdSnO₃ thin films were prepared using ultrasonic spray pyrolysis technique. The structural, microstructural, and optical properties of the films were studied using X-ray diffraction, transmission electron microscopy, and UV-VIS spectroscopy, respectively. The sensing performance of a typical film was tested for chemical warfare agent simulants, such as, 2-chloroethyl ethyl sulfide C₄H₉ClS CEES (CEES), dimethyl methyl phosphonate C₃H₉O₃P (DMMP), and 2-chloroethyl phenyl sulfide C₈H₉ClS (CEPS). The simulant sensing performance of CdSnO₃ thin-film-based sensor was tested. CdSnO₃ thin-film-based sensor was observed to be more sensitive to CEES as compared with DMMP and CEPS. The results were discussed and interpreted.