Shivani Dhall

Title : Role of electron beam-Induced deposition (EBID) technique in joining of broken carbon materials

Abstract:

In this presentation, joining of broken multiwalled carbon nanotubes (MWCNTs) via an electron beam-induced deposition technique is discussed. Current-induced breakdown caused by Joule heating was achieved by applying an appropriate sweep voltage. Scanning electron microscopy images indicated physical joining of broken tubes. To confirm electrical joining of the tubes, current–voltage measurements of the same tube were carried out before and after joining. The current–voltage characteristics remained ohmic after joining of the broken tube. This approach provides a significant tool for repairing CNTs in interconnect technologies and assembly of three-dimensional (3D) nanostructures.

Audience take-away:

• Knowledge of separation of nanotubes from network.
• They will learn how we use EBID technique at nano-level for the joining or welding of nanomaterials.

Biography:

Dr. Shivani Dhall has been working as an Assistant Professor in the Department of Physics, D.A.V. College, Jalandhar, since July 2018. Previously, she worked as a NPDF in Department of Physics, IITD. During her PhD, she worked in CEN, Electrical Department, IIT Bombay. She got best INUP project award from IIT Bombay in 2015. In 2018, she awarded with CSIR Nehru and DS Kothari Fellowships. In 2019, She received TARE project under DST for continue her research work. She is working on carbon materials, nanoparticles and their device fabrication using lithography technique for gas sensing, photo-sensor and interconnected applications. She is reviewer of many SCI journals. She has 21 SCI Journals publications.