Experimental Data for: Light-induced quantum friction of carbon nanotubes in water

We further show that the chemical manipulation of exciton concentration by molecules that increase or decrease SWCNT fluorescence also modulates the diffusion constant by up to a factor of 2. Optical pump terahertz (THz) probe spectroscopy shows an instantaneous response (around 30 cm−1) that we assign to direct exciton–water coupling in the range of water Debye modes. It is followed by an increasing (>100 ps) response in the range of intermolecular translational modes of the hydrogen bond network of water (>100 cm−1), resembling heating.

Classical molecular dynamics simulations further support a mechanism in which the fluctuating dipole moments of excitons create frictional forces. These findings establish light-induced quantum friction between excitons in SWCNTs and water and show that electronic excitations can be used to control nanoscale motion and fluid properties. DATASET DESCRIPTION: The dataset is organized according to the different experimental and simulation data: 1.

Absorption (Abs) and Emission Spectra (Abs_Emission) This folder provides an overview of the absorption and 1D and 2D emission spectra of all the samples used in the shown experiments. 2. FCS (Fluorescence correlation spectroscopy) This folder contains the raw and processed FCS datasets shown in the main article, the extended data figures, and the supplementary information. Data types: Excel (.xlsx).

And text files (.txt). 3. Code This folder contains python code to calculate exciton numbers and a FCS simulation + simulation figure data. 4. Particle Tracking (Particle_tracking) This folder contains the raw data (images, movies) and the processed data of particle tracking experiments 5.

Thz Spectra (OPTP) This folder contains all the raw and processed data of OPTP experiments. 6. Simulation This folder contains all the information from the classical MD simulations. Separate readme files explaining the subfolders where necessary have been deposited.