Anti-Stokes Raman Scattering of Single Carbyne Chains

We investigate the anti-Stokes Raman scattering of single carbyne chains confined inside double-walled carbon nanotubes. Individual chains are identified using tip-enhanced Raman scattering (TERS) and heated by resonant excitation with varying laser powers. We study the temperature dependence of carbyne's Raman spectrum and quantify the laser-induced heating based on the anti-Stokes/Stokes ratio. Due to its molecular size and its large Raman cross section, carbyne holds great promise for local temperature monitoring, with potential applications ranging from nanoelectronics to biology.

Automated summary

In this study, anti-Stokes Raman scattering of single carbyne chains confined inside double-walled carbon nanotubes was investigated using tip-enhanced Raman scattering (TERS). The temperature dependence of carbyne's Raman spectrum was studied and laser-induced heating was quantified based on the anti-Stokes/Stokes ratio. Due to its molecular size and large Raman cross section, carbyne shows great promise for local temperature monitoring and potential applications in nanoelectronics and biology.