Journal
ORGANIC ELECTRONICS
Volume 15, Issue 10, Pages 2536-2545Publisher
ELSEVIER
DOI: 10.1016/j.orgel.2014.06.014
Keywords
Metal-organic contacts; Injection and transport of charge; Modeling; Characterization; Degradation; Surface treatment
Funding
- Ministerio de Educacion y Ciencia [FPU12/02712]
- Fondo Europeo de Desarrollo Regional (FEDER) [TEC2010-16211]
- Canada Research Chair program
Ask authors/readers for more resources
A method to characterize metal-organic contacts subjected to controlled technological treatments or unintentional degradation processes is proposed. The procedure is useful to characterize different fundamental aspects of a metal-organic structure such as the height of the interface energy barrier, the presence of impurities or trapping effects and the carrier mobility. Current-voltage curves in organic diodes are analyzed and the value of the free carrier density at the metal-organic interface is extracted and discussed. The charge carrier density is chosen for this analysis as this is one of the key physical parameters in the understanding of the physical processes involved in the device operation. The extracted charge, when described as a function of the current density, gives information about the doping and impurity concentration, the effective barrier seen by the carriers at the metal-organic interface or effective barriers seen by the carriers in the hopping processes across the organic material. An important advantage of the proposed procedure is the low computational time. Also, the procedure aims to provide a quick analysis for researchers on how the physical properties of the devices are evolving when they are technologically altered or degraded. (C) 2014 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available