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Related Concept Videos

Field Effect Transistor01:29

Field Effect Transistor

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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...
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Effect of Bending on the Electrical Characteristics of Flexible Organic Single Crystal-based Field-effect Transistors
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High performance solution-processable tetrathienoacene (TTAR) based small molecules for organic field effect

Sureshraju Vegiraju1, Deng-Yi Huang, Pragya Priyanka

  • 1Department of Chemistry, National Central University, Taoyuan, 32001, Taiwan. mcchen@ncu.edu.tw.

Chemical Communications (Cambridge, England)
|May 18, 2017
PubMed
Summary

Researchers synthesized new organic semiconductors based on tetrathienoacene (TTAR) for organic field-effect transistors (OFETs). The DDTT-TTAR material achieved a record hole mobility of 0.81 cm2 V-1 s-1, advancing solution-processable semiconductors.

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Area of Science:

  • Organic electronics
  • Materials science
  • Semiconductor physics

Background:

  • Organic semiconductors are crucial for developing flexible and low-cost electronic devices.
  • Tetrathienoacene (TTAR) derivatives offer tunable electronic properties for organic field-effect transistors (OFETs).

Purpose of the Study:

  • To synthesize and characterize novel TTAR-based organic semiconductors.
  • To evaluate their performance in OFET applications.
  • To achieve high hole mobility in solution-processable p-type materials.

Main Methods:

  • Synthesis of three new organic semiconductors: DT-TTAR, DTT-TTAR, and DDTT-TTAR.
  • Characterization of their molecular structure and electronic properties.
  • Fabrication and testing of OFET devices using these materials.

Main Results:

  • Successful synthesis of DT-TTAR, DTT-TTAR, and DDTT-TTAR with alkyl chain-substituted TTAR core.
  • Achieved a high hole mobility of 0.81 cm2 V-1 s-1 for the DDTT-TTAR film.
  • Demonstrated the potential of these materials for high-performance OFETs.

Conclusions:

  • The synthesized TTAR derivatives exhibit promising semiconductor properties.
  • DDTT-TTAR represents a significant advancement in solution-processable p-type organic semiconductors.
  • These findings pave the way for next-generation organic electronic devices.