Paven Thomas Mathew


ACSM: Atomic & Close to Atomic Scale Manufacturing

  • Atomic and close-to-atomic scale manufacturing

  • Molecular Electronics

  • Atomic scale device

  • Tip-based fabrication

  • Material removal mechanism

  • Simulation


Fundamental Approach Towards Atomic/close-to-atomic Scale Manufacturing

Paven Thomas Mathew


  • Atomic/close-to-atomic scale manufacturing (ACSM)

  • Molecular Electronics

  • Potential energy decomposition analysis (pEDA)

  • Scanning probe

  • Simulation


Atomic scale manufacturing is a necessity of the future to develop atomic scale devices with high precision. A different perspective of the quantum realm, that includes the tunnelling effect, leakage current at the atomic-scale, Coulomb blockade and Kondo effect, is inevitable for the fabrication and hence, the mass production of these devices. For these atomic-scale device development, molecular level devices must be fabricated. Proper theoretical studies could be an aid towards the experimental realities. We employ the application of molecular electronics for understanding the nuances of such devices. It deals with the assembly of molecular electronic components using molecules as the building blocks. It is an interdisciplinary field that includes physics, chemistry, materials science, and engineering. Moletronics mainly deals with the reduction of size of silicon components. Novel research has been performed in developing electrical-equivalent molecular components. Moletronics has established its influence in electronic and photonic applications, such as conducting polymers, photochromics, organic superconductors, electrochromics, and many more. Since there is a need to reduce the size of the silicon chip, attaining such technology at the molecular level is essential.


Also, we show how moletronics could form a basic strategy to shift from the conventional theories of manufacturing to the atomic-scale manufacturing. Our research focus on pursuing innovative ideas in developing new techniques and manufacturing methodologies for achieving atomic scale manufacturing, thereby, contributing to the fabrication of atomic scale devices and atomic layer material removal processes. Theoretical simulations on electron flow across molecular junction and experimentation using atomic force microscopes (AFM) are the focus of the research.