|Autors: Aleksandrova, M. P.|
Title: Study of flexible organic electroluminescent devices with PEDOT:PSS anodes by impedance measurements
Keywords: Flexible organic light-emitting diodes, UV treatment, PEDOT:PSS films, Impedance spectroscopy, pixel refresh rate, display parameters.
Abstract: Impedance spectroscopy was applied for analyzing the electrical behavior and extracting the equivalent circuit of single-layer flexible organic light-emitting diodes (OLEDs) with poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) anode. The preliminary UV treatment of the flexible substrate of polyethylene terephthalate (PET) influenced the conductivity of PEDOT:PSS anodes. The impedance spectroscopy showed that the OLED with UV treated PET/PEDOT:PSS anodes had lower values of the contact resistance and higher value of the interface capacitance. The obtained data were used for modeling of flexible OLEDs with polymeric anodes and calculation of important display parameters such as pixel refresh ratio, signal delays and energy losses due to contact resistances. These parameters were compared for PEDOT:PSS anodes deposited on PET treated and non-treated by UV.
Вид: статия в списание, публикация в издание с импакт фактор, публикация в реферирано издание, индексирана в Scopus