Raman Sideband Thermometry of Single Carbyne Chains

TL;DR

This paper demonstrates a novel Raman sideband thermometry technique for single carbyne chains within carbon nanotubes, enabling precise local temperature measurements at the molecular level using anti-Stokes Raman scattering.

Contribution

It introduces the first application of Raman sideband thermometry to single carbyne chains, leveraging their high Raman cross section for local temperature sensing.

Findings

Successful measurement of temperature at the single-chain level.

Carbyne's high Raman cross section facilitates anti-Stokes Raman detection.

Potential applications in nanoelectronics and biological temperature monitoring.

Abstract

We demonstrate Raman sideband thermometry of single carbyne chains confined in double-walled carbon nanotubes. Our results show that carbyne's record-high Raman scattering cross section enables anti-Stokes Raman measurements at the single chain level. Using laser irradiation as a heating source, we exploit the temperature dependence of the anti-Stokes/Stokes ratio for local temperature sensing. Due to its molecular size and its large Raman cross section carbyne is an efficient probe for local temperature monitoring, with applications ranging from nanoelectronics to biology.