How To Make Ohmic Contacts to Organic Semiconductors
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- 19 January 2004
- journal article
- review article
- Published by Wiley in Chemphyschem
- Vol. 5 (1) , 16-25
- https://doi.org/10.1002/cphc.200300942
Abstract
The process of charge injection plays an important role in organic semiconductor devices. We review various experimental techniques that allow injection to be separated from other competing processes, and quantify the injection efficiency of a contact. We discuss the dependence of the injection efficiency on parameters such as the energy barrier at the interface, the carrier mobility of the organic semiconductor, its carrier density (doping level), the presence of mobile ions, and the sample geometry. Based on these findings, we outline guidelines for forming ohmic contacts and present examples of contact engineering in organic semiconductor devices.Keywords
This publication has 58 references indexed in Scilit:
- Electronic injection and conduction processes for polymer devicesJournal of Polymer Science Part B: Polymer Physics, 2003
- Schottky energy barrier and charge injection in metal/copper–phthalocyanine/metal structuresApplied Physics Letters, 2002
- Mobility-Dependent Charge Injection into an Organic SemiconductorPhysical Review Letters, 2001
- Controlled doping of phthalocyanine layers by cosublimation with acceptor molecules: A systematic Seebeck and conductivity studyApplied Physics Letters, 1998
- Polymer/metal interfaces and the performance of polymer light-emitting diodesJournal of Applied Physics, 1998
- Molecular level alignment at organic semiconductor-metal interfacesApplied Physics Letters, 1998
- Energy level alignment at organic/metal interfaces studied by UV photoemissionSynthetic Metals, 1997
- Highly efficient and stable organic light-emitting diodesSynthetic Metals, 1997
- Emission limited injection by thermally assisted tunneling into a trap-free transport polymerApplied Physics Letters, 1995
- Trap-free space-charge-limited current: Analytical solution for an arbitrary mobility lawPhilosophical Magazine Letters, 1994