HYBRID EVENT: You can participate in person at Singapore or Virtually from your home or work.

8th Edition of World Nanotechnology Conference

March 18-20, 2024

March 18 -20, 2024 | Singapore
World Nano 2024

Goban Kumar Panneer Selvam

Goban Kumar Panneer Selvam, Speaker at Nanotechnology Conferences
Title : Comparative study of thin film tin oxide and copper-doped tin oxide films for propane gas sensors


In this research, we conduct a comprehensive comparative study between thin film tin oxide (SnO2) and copper-doped tin oxide (Cu/SnO2) films for propane gas sensing applications. The films are prepared using the sol-gel method and characterized through various techniques. X-ray diffraction (XRD) confirms the crystalline nature of both SnO2 and Cu/SnO2 films, with crystalline sizes below 10 nm. Scanning electron microscopy (SEM) reveals distinct differences in the surface morphology of the pure SnO2 and Cu/SnO2 films. Ultraviolet-visible spectroscopy (UV) provides valuable insights into the optical properties of the films, showing their absorbance and transmission characteristics. Atomic force microscopy (AFM) yields information on surface roughness and topography, further elucidating their structural features.To assess their gas sensing capabilities, the prepared thin films are exposed to a propane gas sensing setup. The results demonstrate remarkably high sensitivity to propane gas, with a recorded sensitivity value of 884.2 for three different types of immersion films.

Audience take Away:

  • The comparative performance of thin film tin oxide (SnO2) and copper-doped tin oxide (Cu/SnO2) films as propane gas sensors
  • The research findings to enrich their teaching curriculum on gas sensing technology, thin film fabrication techniques, and characterization methods
  • The research provides practical solutions to the problem of selecting suitable gas sensing materials for propane detection
  • Improving the accuracy of gas sensor designs
  • Potential cost-effectiveness in gas sensor fabrication, as the sol-gel method is known for its simplicity and scalability


Goban Kumar Panneer Selvam, he has done Bachelor of Technology in electronic communication and engineering, 2015 in SRM university, India. He pursued Master of Technology in nanotechnology at 2018 in VIT University, India. Currently he is doing his doctorate, PhD in nanotechnology and nanoscience in CINVESTAV, Mexico.