SF Prep Notes

JNCASR study finds electron confinement causes plasmonic breakdown in metals

Researchers at JNCASR, Bengaluru, led by Prof. Bivas Saha, found that quantum confinement of electrons at the nanoscale breaks down plasmonic behaviour in metals, DST reported on 28 January 2025.

Summary

Researchers at the Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bengaluru, an institute under DST, uncovered electron confinement-induced plasmonic breakdown in metals, DST reported on 28 January 2025. The JNCASR team led by Prof. Bivas Saha showed that quantum confinement of electrons at the nanoscale changes the electronic structure of metals and suppresses the collective electron oscillations behind plasmonic properties. The study, published in Science Advances, could help design better optoelectronic materials, atomic-scale sensors and nano-catalysts.

Key facts

Reported
28 January 2025
Institute
JNCASR, Bengaluru (DST)
Lead
Prof. Bivas Saha
Finding
Electron confinement-induced plasmonic breakdown in metals
Journal
Science Advances

Practice MCQs 1 questions

Q1 Advanced

Researchers of which institute reported electron confinement-induced plasmonic breakdown in metals in January 2025?

Show answer

Correct answer: B — Jawaharlal Nehru Centre for Advanced Scientific Research

PIB 2097003: the study was by JNCASR, Bengaluru, led by Prof. Bivas Saha.

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