Combined Electrochemical Raman Spectroscopy for Process Characterization

Electrochemical techniques and Raman spectroscopy can be used simultaneously to characterize electrochemical reactions. The combined technology allows for detailed characterization of various reaction mechanisms. By using the portable i-Raman system in combination with a potentiostat from Gamry Instruments, structural changes of PEDOT:PSS during its electrochemical reduction were analyzed by means of chronoamperometric Raman experiments. The results provide useful information for improving OLED efficiency and lifetime.