ARUNKUMAR S

I specialize in the nanofabrication of superconducting nanowires for single-photon detection applications, utilizing techniques such as electron beam lithography and thin-film deposition.

• Development of high Sensitivity metal oxide semiconductor (MOS) gas sensor for launch pad applications/ISRO
• Involved in fabrication process creation of miniaturized structures and components on silicon substrate using
  advanced microfabrication techniques. Fabricating MEMS-based devices involves distinct processes such as lithography,
  sputtering, DRIE, PECVD, and RIE, each dedicated to individual stages of device creation. Among these, lithography
  assumes vital role in patterning, facilitating both front and backside pattern transfers. It encompasses alignment and
  exposure, crucially dependent on wavelength. My extensive experience in lithography has been immensely valuable in
  mastering these elaborate procedures. This allows for production of highly sensitive and compact gas sensors that
  can be integrated into various applications.
• After fabrication, rigorous testing and characterization procedures are carried out to assess sensor’s functionality and
  performance.
  • Various testing methods, such as environmental chambers, controlled gas flow systems, and calibration techniques, are
  used to ensure that performance of sensors is accurate and reliable.
  • As well as analyzing and testing Six array sensor system that is associated with the Liquid Propulsion Systems
  Centre/ISRO
• The training has given me the ability to wire bond and pack device with the help of TPT wire bonder and packing labs and basic python through the system labs for algorithm-based calibration of gas sensor devices.

• Testing and deployment of metal oxide semiconductor gas sensors
• Involved in fabrication and testing process of metal oxide-based MEMS chemiresistive sensor which can selectively detect
  hydrogen gas as a part of the Semiconductor Labs (SCL) project under the Department of Space, India
• Sputtered metal oxide-based sensors, I utilized RF sputtering and acquired expertise in the PVD process. I learned
  optical lithography for mask alignment and mastered gas sensor calibration setup, as well as IV characterization probe
  station techniques. optimized the microheater power consumption,(FLIR camera) and characterized the chemiresistive
  behavior of the sensor towards the cross-sensitivity of different gases

• Hydrothermal Synthesis of Tin oxide based material for Environment and Energy Application
• Optimized different phases of SnOx via hydrothermal/ solvothermal bottom-up approach and characterized their
  photocatalytic activity and electrode performance toward supercapacitor applications

• Zinc based Nanostructure materials for Biosensing Application
• Synthesized zinc oxide nanoparticles (ZnO-NPs) by a sol-gel method and co-doped Na and Ga ions to prepare
  [Zn0.97CO0.02Ga0.01O]
• Studied the characteristic results of ZnO nanostructured metal oxide nanohybrid for efficient enzymatic and non-enzymatic
  biosensor applications