A study was performed on the conjugated organic (COM) molecules on metal versus polymer electrodes. A key energy level alignment mechanism was demonstrated between three electroactive COM and two high work function electrodes using ultraviolet photoemission spectroscopy. It was found that the hole injection barrier and the interfacial dipole barrier were significantly smaller for all the interfaces formed on the polymer as compared to the metal, inspite of the fact that both electrode surfaces had similar work functions.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)