Origin of macroscopic adhesion in organic light-emitting diodes analyzed at different length scales.

ABSTRACT: Organic light-emitting diodes (OLEDs) have been widely studied because of their various advantages. OLEDs are multi-layered structures consisting of organic and inorganic materials arranged in a heterojunction; the nature of adhesion at their heterogeneous interfaces has a significant effect on their properties. In this study, the origin of macroscopic adhesion was explored in OLEDs using a combination of microscopy techniques applied at different length scales. The different techniques allowed the identification of layers exposed by a peel test, which aided direct characterization of their macroscopic adhesion. Further, the contribution of each exposed layer to macroscopic adhesion could be determined through an analysis of photographic images. Finally, analysis of the local roughness and

SUBMITTER: Kim S 

PROVIDER: S-EPMC5913230 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature