Manipulation of charge carrier injection into organic field-effect transistors by self-assembled monolayers of alkanethiols

Asadi, Kamal; Gholamrezaie, Fatemeh; Smits, Edsger C. P.; Blom, Paul W. M.; Boer, Bart de

doi:10.1039/b617995a

Cited by 105 publications

(103 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[6,20] In OFETs fabricated with carbon nanotubes [21] or amorphous polymer semiconductors, [22] modifying the work function of the electrodes with self-assembled monolayers (SAMs) has been shown to influence the OFET performance. In case of pentacene-(or in general crystalline organic semiconductors-) based OFETs with SAM-modified gate oxide and/or electrodes, however, changes in performance are accompanied by changes in the morphology of pentacene (or crystalline organic semiconductor) deposited onto the modified surface.…”

Section: Single-layer Pentacene Field-effect Transistors Using Electrmentioning

confidence: 99%

Single‐Layer Pentacene Field‐Effect Transistors Using Electrodes Modified With Self‐assembled Monolayers

et al. 2009

Self Cite

View full text Add to dashboard Cite

Section: Single-layer Pentacene Field-effect Transistors Using Electrmentioning

confidence: 99%

Single‐Layer Pentacene Field‐Effect Transistors Using Electrodes Modified With Self‐assembled Monolayers

et al. 2009

Self Cite

View full text Add to dashboard Cite

“…This work is based on the idea that this could eventually be achieved by inserting a self-assembled monolayer, i.e, a structure that is self-fabricated upon deposition, and could also modify the metal electrode's work-function and the charge carrier injection barrier, e.g., in an organic field effect transistor. 17 Recently, charge transfer complexes have been used in this context, 18,19 showing interesting effects on hole-injection barriers. More generally, self-assembly can lead to the formation of a wide range of twodimensional structures with different mechanical and electrostatic properties 20À22 and appears to be a very promising route for the nanofabrication of interlayers.…”

mentioning

confidence: 99%

Fine-Tuning the Electrostatic Properties of an Alkali-Linked Organic Adlayer on a Metal Substrate

2013

View full text Add to dashboard Cite

The performance of modern organic electronic devices is often determined by the electronic level alignment at a metal–organic interface. This property can be controlled by introducing an interfacial electrostatic dipole via the insertion of a stable interlayer between the metallic and the organic phases. Here, we use density functional theory to investigate the electrostatic properties of an assembled structure formed by alkali metals coadsorbed with 7,7,8,8-tetracyanoquinodimethane (TCNQ) molecules on a Ag(100) substrate. We find that the interfacial dipole buildup is regulated by the interplay of adsorption energetics, steric constraints and charge transfer effects, so that choosing chemical substitutions within TCNQ and different alkali metals provides a rich playground to control the systems’ electrostatics and in particular fine-tune its work-function shift

show abstract

“…First, a Dutch group reported on transistors made of MEH-PPV and regio-regular polyhexylthiophene (rr-P3HT) with gold electrodes modified by decanethiol SAMs with CH 3 and CF 3 end groups [28]. This time, TLM measurements indicated that the channel mobility only depends on the nature of the semiconductor, not on that of the contact.…”

Section: Morphological Vs Dipolar Effectsmentioning

confidence: 99%

Interface Modification for Tuning the Contact Resistance of Metal/Organic Semiconductor Junctions

Horowitz¹

2011

TOAPJ

View full text Add to dashboard Cite

Abstract:As the performance of organic field-effect transistors improves, the limitation due to charge carrier injection at source and drain electrodes becomes crucial. This review describes the various solutions that have been developed to work around this issue. The most widespread method consists of interposing between the electrodes and the organic semiconductor film a self-assembled monolayer made of an appropriate reactive molecule. In that case, the reduction of the contact resistance may come either from an improved morphology of the semiconductor film, or to a better energy level alignment at the interface with the electrode. The respective inference of both aspects is discussed. Alternative ways to reduce the contact resistance by an appropriate surface treatment of the electrodes prior to the deposition of the semiconductor are also presented.

show abstract

Manipulation of charge carrier injection into organic field-effect transistors by self-assembled monolayers of alkanethiols

Abstract: Manipulation of charge carrier injection into organic field-effect transistors by self-assembled monolayers of alkanethiols Asadi, Kamal; Gholamrezaie, Fatemeh; Smits, Edsger C. P.; Blom, Paul W. M.; de Boer, Bert

Cited by 105 publications

References 26 publications

Single‐Layer Pentacene Field‐Effect Transistors Using Electrodes Modified With Self‐assembled Monolayers

Single‐Layer Pentacene Field‐Effect Transistors Using Electrodes Modified With Self‐assembled Monolayers

Fine-Tuning the Electrostatic Properties of an Alkali-Linked Organic Adlayer on a Metal Substrate

Interface Modification for Tuning the Contact Resistance of Metal/Organic Semiconductor Junctions

Contact Info

Product

Resources

About