Waveguide-Based Chemical and Spectroelectrochemical Sensor Platforms

Here we review the progress in the development of waveguide-based spectroelectrochemical platforms, with special emphasis on the most recent technologies: the electroactive fiber-optic chip (EA-FOC) and chip-like spectroelectrochemical platforms using organic light emitting diode (OLED) light sources coupled with organic photovoltaic photodetectors (OPV-PD). Both technologies simplify spectroelectrochemical data collection through eliminating the need for free-space optics and benefit from the increased sensitivity of waveguide based devices producing new chemical sensor platforms.