Alternating-current light-emitting devices based on conjugated polymers
Wang, Y. Z. ; Gebler, D. D. ; Lin, L. B. ; Blatchford, J. W. ; Jessen, S. W. ; Wang, H. L. ; Epstein, A. J.
Woodbury, NY : American Institute of Physics (AIP)
Published 1996
Woodbury, NY : American Institute of Physics (AIP)
Published 1996
| ISSN: |
1077-3118
|
|---|---|
| Source: |
AIP Digital Archive
|
| Topics: |
Physics
|
| Notes: |
Most polymer electroluminescent devices to date are represented as tunnel diodes and operate under direct-current (dc) driving field. Here we report the fabrication of symmetrically configured alternating-current (ac) light-emitting (SCALE) devices based on conjugated polymers. The new devices consist of an emissive polymer layer sandwiched between two redox polymer layers. This configuration enables the SCALE devices to work under both forward and reverse dc bias as well as in ac modes. The nearly ohmic electrode/redox polymer contacts improve the charge injection efficiency significantly and make the SCALE device operation insensitive to electrode work functions. Symmetric operation supports the key role of redox polymer/emissive polymer interface states. © 1996 American Institute of Physics.
|
| Type of Medium: |
Electronic Resource
|
| URL: |