Improvement of The CO2 Sensitivity of HPTS Along With ZnO/CuO Nanoparticles: A Comparative Study Between Core-Shell And Hybrid Structures

Authors : Sibel OĞUZLAR

Pages : 983-994

Doi:10.18596/jotcsa.947087

View : 44 | Download : 7

Publication Date : 2021-11-30

Article Type : Research Paper

Abstract :Semiconductor metal oxide materials have gained huge attention in gas sensors owing to their high sensitivity to many target gases. Herein, ZnO/CuO core-shell and ZnO/CuO hybrid, which were synthesized by different sol-gel methods and formed in two different crystal structures, were used as an additive material to enhance the response range of 8-hydroxypyrene-1, 3, 6-trisulfonic acid insert ignore into journalissuearticles values(HPTS); for the sensing of gaseous carbon dioxide. Metal oxide materials were characterized by using XPS, XRD, FTIR, SEM, UV–Vis, and PL spectroscopy. The HPTS dye along with the ZnO/CuO hybrid material displayed a higher CO2 gas sensitivity as 94% ratio insert ignore into journalissuearticles values(I0/I100=16.90); and Stern-Volmer constant insert ignore into journalissuearticles values(KSV); value and extended linear response range compared to the HPTS-based sensing thin films along with ZnO/CuO core-shell material and additive-free form. ZnO/CuO core-shell and hybrid structures were used for enhancing of carbon dioxide sensitivity of the HPTS dye.
Keywords : Photoluminescence, optical based carbon dioxide sensor, HPTS, metal oxide, ZnO CuO core shell hybrid

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