| 초록 |
Light-emitting electrochemical cells (LEECs) have been drawn attention for possessing easy-to-fabricate light-emitting characteristics. In the present study, we have investigated the performance characteristics of LEECs based on transition metal complex, which is Tris(2,2'-bipyridyl)Ruthenium(II) hexafluorophosphate and PEDOT:PSS sublayer, as a buffer, was introduced to LEECs. Performance characteristics include carrier mobility, current density-voltage, light intensity-voltage, response time and turn-on voltages. The devices were fabricated as sandwiched structure and light-emitting layer was deposited approximately 40nm thickness by spin coating. Relationship between film thickness and electrical properties of device was investigated. Electrical properties were measured using optical spectrometer, and morphology changes of the luminous layer were observed using XRD and AFM varying contents of PEDOT:PSS in the thin film. Enhanced ionic conductivity at the interfare of PEDOT:PSS and luminous layer improved the performances and stability of LEECs in this study. |
