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Updated: May 30, 2026
08:12
Ohmic Contact Fabrication Using a Focused-ion Beam Technique and Electrical Characterization for Layer Semiconductor Nanostructures
Published on: December 5, 2015
Molecular monolayers as semiconducting channels in field effect transistors
1Department of Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA. kagan@seas.upenn.edu
Topics in Current Chemistry
|August 3, 2011
Summary
Single molecular layers in field-effect transistors (FETs) enable efficient charge transport. These monolayer FETs show promise for advanced electronic circuits and sensitive chemical sensing applications.
Area of Science:
- Organic electronics
- Molecular electronics
- Semiconductor physics
Background:
- Field-effect transistors (FETs) are key electronic components.
- Single molecular layers offer unique charge transport properties.
- π-conjugated molecules are crucial for semiconducting channels.
Purpose of the Study:
- To investigate charge transport in single molecular layers within FETs.
- To explore methods for creating molecular monolayers on FET surfaces.
- To highlight advancements in molecular design for improved FET performance.
Main Methods:
- Evaporation techniques for monolayer formation.
- Langmuir-Blodgett assembly and transfer methods.
- Self-assembly processes for molecular organization.
Main Results:
- Demonstration of charge transport through π-conjugated molecular monolayers.
- Improvement of charge transport properties via molecular design and interface modification.
- Integration of monolayer FETs into electronic circuitry.
Conclusions:
- Single molecular layer FETs are viable for electronic applications.
- Monolayer FETs exhibit high performance as chemical sensors.
- The entire molecular monolayer is effectively modulated by gate fields and analyte access.
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