Abstract
SnO 2 hollow spheres/polythiophene hybrid materials were synthesized by an in situ chemical oxidative polymerization method, and characterized by Fourier transfer infrared (FTIR) spectroscopy, X-ray diffraction (XRD), transmission electron microscopy (TEM) and thermo-gravimetric analysis (TGA). It is proved that there is a strong synergetic interaction between the SnO 2 hollow spheres and polythiophene, and the hybrid materials had higher thermal stability than pure polythiophene, which is beneficial for potential application as chemical sensors. Gas sensing tests showed that the gas sensor based on the as-obtained hybrids had high sensor response and good selectivity, as well as comparatively short recovery time to NO 2 at a working temperature of 90 °C. The enhanced gas sensing performance of the hybrids is due to the high surface area of the hybrids and the p–n heterojunction formed between p-type polythiophene and n-type SnO 2 hollow spheres.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
