In Situ Confocal Raman Microscopy of Redox Polymer Films on Bulk Electrode Supports.

ABSTRACT: A spectroelectrochemical cell is described that enables confocal Raman microscopy studies of electrode-supported films. The confocal probe volume (∼1 μm³) was treated as a fixed-volume reservoir for the observation of potential-induced changes in chemical composition at microscopic locations within an ∼20 μm thickness layer of a redox polymer cast onto a 3 mm diameter carbon disk electrode. Using a Raman system with high collection efficiency and wavelength reproducibility, spectral subtraction achieved excellent rejection of background interferences, opening opportunities for measuring within micrometer-scale thickness redox films on widely available, low-cost, and conventional carbon disk electrodes. The cell performance and spectral difference technique are demonstrated in ex

SUBMITTER: Xu J 

PROVIDER: S-EPMC10120033 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature