Computational Tool to Help Make Better Nanoscale Semiconductors

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  • It can assess the effects of electron-phonon scattering on the current through electronic devices in integrated circuits
  • The research was supported by the Department of Science and Technology, and by the Council for Scientific and Industrial Research.

According to a recent report by Indusdictum, an international team of interdisciplinary scientists led by researchers from the Indian Institute of Science (IISc), Bengaluru, have developed a computational tool to evaluate the performance of advanced graphene-like two dimensional (2D) materials.

A closer look

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It can assess the effects of electron-phonon scattering on the current through electronic devices in integrated circuits. By using this code, one can see the quantum lattice vibrations of the crystal, pre-evaluate the performance of the advanced material, and check its suitability for a device, before manufacturing them.

Dr. Santanu Mahapatra, team lead of the study and professor at IISc, told India Science Wire that in the semiconducting channel of a device such as a transistor, electrons/holes carriers transport the charge (and information encoded within the charge) from the input to the output end. The phonons interact with carriers during this transport and create ‘resistance’, which affects the performance such as drive current and speed of operation.

He further stated that strength of such interaction is material-specific, and thus it is crucial to understand the interaction when we plan to design transistors fabricated with the 2D materials.

The research was supported by the Department of Science and Technology, and by the Council for Scientific and Industrial Research.

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