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Related Experiment Video

Updated: Jan 29, 2026

Monolayer Contact Doping of Silicon Surfaces and Nanowires Using Organophosphorus Compounds

Monolayer Contact Doping of Silicon Surfaces and Nanowires Using Organophosphorus Compounds

Published on: December 2, 2013

Nanoscale Ion-Doped Polymer Transistors.

Quentin Thiburce¹, Alexander Giovannitti^2,3, Iain McCulloch^2,3,4

¹Experimental Solid State Physics Group, Department of Physics, Blackett Laboratory, Imperial College London , South Kensington Campus, London SW7 2AZ , United Kingdom.

|February 6, 2019

Summary

This summary is machine-generated.

Organic transistors with nanoscale channels overcome short-channel effects using dynamic electrochemical doping. This enables high performance for polymer integrated circuits operating at low voltages.

Keywords:

Organic electronics conjugated polymer ion gel large transconductance organic electrochemical transistor (OECT)short-channel transistor

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Last Updated: Jan 29, 2026

Monolayer Contact Doping of Silicon Surfaces and Nanowires Using Organophosphorus Compounds

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A Novel Method for In Situ Electromechanical Characterization of Nanoscale Specimens

A Novel Method for In Situ Electromechanical Characterization of Nanoscale Specimens

Published on: June 2, 2017

Area of Science:

Materials Science
Organic Electronics
Semiconductor Physics

Background:

Organic transistors (OTs) with submicron dimensions often exhibit "short-channel" effects.
These effects lead to nonlinear output characteristics and poor current saturation, limiting device applications.

Purpose of the Study:

To investigate the performance of organic transistors with nanoscale channel lengths.
To overcome the limitations imposed by short-channel effects in organic electronics.

Main Methods:

Utilizing an electrochemically doped polymer semiconductor.
Dynamically injecting and removing ions from the bulk of the semiconductor material.
Fabricating devices with channel lengths down to 50 nm.

Main Results:

Achieved well-defined linear and saturation regimes in output curves for nanoscale devices.
Demonstrated very large on-currents comparable to microscale devices.
Obtained high on-to-off ratios (10^8) and record transconductances (>10 S m^-1).

Conclusions:

Electrochemical doping effectively suppresses short-channel effects in nanoscale organic transistors.
This approach enables high-gain, high-current polymer integrated circuits.
Potential for low-voltage (<1 V) polymer electronics using simple solution processing.