Self consistent theory of unipolar charge-carrier injection in metal/insulator/metal systems

Bibliographic Details
Title: Self consistent theory of unipolar charge-carrier injection in metal/insulator/metal systems
Authors: Neumann, F., Genenko, Y. A., Melzer, C., von Seggern, H.
Source: J. Appl. Phys. 100, 084511 (2006)
Publication Year: 2007
Collection: Condensed Matter
Subject Terms: Condensed Matter - Materials Science
More Details: A consistent device model to describe current-voltage characteristics of metal/insulator/metal systems is developed. In this model the insulator and the metal electrodes are described within the same theoretical framework by using density of states distributions. This approach leads to differential equations for the electric field which have to be solved in a self consistent manner by considering the continuity of the electric displacement and the electrochemical potential in the complete system. The model is capable of describing the current-voltage characteristics of the metal/insulator/metal system in forward and reverse bias for arbitrary values of the metal/ insulator injection barriers. In the case of high injection barriers, approximations are provided offering a tool for comparison with experiments. Numerical calculations are performed exemplary using a simplified model of an organic semiconductor.
Comment: 21 pages, 8 figures
Document Type: Working Paper
DOI: 10.1063/1.2360383
Access URL: http://arxiv.org/abs/0704.2322
Accession Number: edsarx.0704.2322
Database: arXiv
More Details
DOI:10.1063/1.2360383