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Related Concept Videos

Field Effect Transistor01:29

Field Effect Transistor

Field-effect transistors (FETs) are integral to electronic circuits and distinguished by their three-terminal setup: the gate, drain, and source. These transistors operate as unipolar devices, which utilize either electrons or holes as charge carriers, in contrast to bipolar transistors, which use both types of carriers. The primary function of the FET is to modulate the flow of these carriers from the source to the drain through a channel. The voltage difference between the gate and source...
P-N junction01:11

P-N junction

A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...

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Related Experiment Video

Updated: Jun 8, 2026

Effect of Bending on the Electrical Characteristics of Flexible Organic Single Crystal-based Field-effect Transistors
08:43

Effect of Bending on the Electrical Characteristics of Flexible Organic Single Crystal-based Field-effect Transistors

Published on: November 7, 2016

Single light-emitting polymer nanofiber field-effect transistors.

Deyu Tu1, Stefano Pagliara, Andrea Camposeo

  • 1NNL, National Nanotechnology Laboratory of CNR-Istituto Nanoscienze, Università del Salento, via Arnesano, I-73100 Lecce, Italy.

Nanoscale
|September 14, 2010
PubMed
Summary
This summary is machine-generated.

Researchers created single nanofiber transistors using a light-emitting polymer. These organic semiconductor devices show excellent electrical performance and controllable light emission, paving the way for flexible electronics.

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Last Updated: Jun 8, 2026

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Published on: November 7, 2016

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Ultrahigh Density Array of Vertically Aligned Small-molecular Organic Nanowires on Arbitrary Substrates

Published on: June 18, 2013

Area of Science:

  • Organic electronics
  • Nanotechnology
  • Materials science

Background:

  • Organic semiconductors offer potential for flexible and low-cost electronic devices.
  • Field-effect transistors (FETs) are fundamental electronic components.
  • Nanofiber structures can enhance material properties and device performance.

Purpose of the Study:

  • To fabricate and characterize single nanofiber field-effect transistors (FETs) using a specific light-emitting polymer.
  • To evaluate the electrical and optical properties of these nanofiber FETs.
  • To explore the potential of these devices for applications in flexible electronics and optoelectronics.

Main Methods:

  • Fabrication of single nanofiber transistors via electrospinning of poly(2-methoxy-5-(2-ethylhexoxy)-1,4-phenylenevinylene).
  • Electrical characterization to measure parameters like hole mobility and on/off current ratios.
  • Optical characterization to observe photoluminescence intensity and its modulation.

Main Results:

  • Achieved electrical performance comparable to or exceeding thin-film transistors made from the same organic semiconductor.
  • Demonstrated hole mobility of approximately 10(-3) cm(2) V(-1) s(-1) and on/off current ratios up to 780.
  • Observed controllable photoluminescence quenching by varying gate voltage in luministor mode.

Conclusions:

  • Single light-emitting polymer nanofiber transistors effectively couple electrical and optical functionalities.
  • Electrospinning-induced molecular alignment enhances device performance.
  • These devices represent a promising platform for low-cost, flexible one-dimensional switches and light-emitting transistors.