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Related Concept Videos

Semiconductors01:22

Semiconductors

1.3K
There is variation in the electrical conductivity of materials - metals, semiconductors, and insulators that are showcased with the help of the energy band diagrams.
Metals such as copper (Cu), zinc (Zn), or lead (Pb) have low resistivity and feature conduction bands that are either not fully occupied or overlap with the valence band, making a bandgap non-existent. This allows electrons in the highest energy levels of the valence band to easily transition to the conduction band upon gaining...
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Types of Semiconductors01:20

Types of Semiconductors

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Intrinsic semiconductors are highly pure materials with no impurities. At absolute zero, these semiconductors behave as perfect insulators because all the valence electrons are bound, and the conduction band is empty, disallowing electrical conduction. The Fermi level is a concept used to describe the probability of occupancy of energy levels by electrons at thermal equilibrium. In intrinsic semiconductors, the Fermi level is positioned at the midpoint of the energy gap at absolute zero. When...
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Metal-Semiconductor Junctions01:24

Metal-Semiconductor Junctions

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The contact of metal and semiconductor can lead to the formation of a junction with either Schottky or Ohmic behavior.
Schottky Barriers
Schottky barriers arise when a metal with a work function (Φm) contacts a semiconductor with a different work function (Φs). Initially, electrons transfer until the Fermi levels of the metal and semiconductor align at equilibrium. For instance, if Φm > Φs, the semiconductor Fermi level is higher than the metal's before contact. The...
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MOSFET01:16

MOSFET

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The Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) plays a pivotal role in modern electronics thanks to its versatility and efficiency in controlling electrical currents. This device, also known as IGFET, MISFET, and MOSFET, has three main terminals: the Source, Drain, and Gate. MOSFETs are classified into n-channel or p-channel types based on the doping characteristics of their substrate and the source or drain regions.
In an n-MOSFET, the structure includes n-type source and drain...
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MOSFET: Enhancement Mode01:22

MOSFET: Enhancement Mode

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Enhancement-mode MOSFETs are pivotal components in electronics, distinguished by their capacity to act as highly efficient switches. They are part of the larger family of metal-oxide Semiconductor Field-Effect Transistors (MOSFETs). They are available in two types: p-channel and n-channel, each tailored to specific polarity operations.
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no...
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Types of Step-Growth Polymers: Polyesters01:20

Types of Step-Growth Polymers: Polyesters

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The introduction of polyesters has brought major development to the textile industry. The wrinkle-free behavior of polyester blends has eliminated the need for starching and ironing clothes.
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the polymer...
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Updated: Jan 9, 2026

Morphology Control for Fully Printable Organic–Inorganic Bulk-heterojunction Solar Cells Based on a Ti-alkoxide and Semiconducting Polymer
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Advances in Polymeric Semiconductors for Next-Generation Electronic Devices.

Ju Won Lim1

  • 1Division of Semiconductor and Electronics Engineering, Hankuk University of Foreign Studies, Yongin 17035, Republic of Korea.

Polymers
|December 11, 2025
PubMed
Summary

Polymeric semiconductors offer flexible, solution-processable materials for advanced electronics. This review details their fundamental principles, synthesis, processing, and applications, guiding future high-performance device design.

Keywords:
material propertiesneuromorphic devicesoptoelectronicsphototransistorsphysical mechanismpolymeric materialssemiconductor devicessemiconductor materials

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Area of Science:

  • Materials Science
  • Organic Electronics
  • Polymer Chemistry

Background:

  • Polymeric semiconductors have evolved significantly from early conductive polymers.
  • They offer unique mechanical flexibility, solution processability, and tunable optoelectronic properties.
  • These materials are crucial for next-generation electronics like wearable devices and IoT systems.

Purpose of the Study:

  • To systematically review the fundamental principles governing polymeric semiconductors.
  • To elucidate structure-property-performance relationships in these materials.
  • To highlight recent advances and future directions in polymeric semiconductor research.

Main Methods:

  • Systematic review of fundamental principles (electronic structure, charge transport, morphology).
  • Discussion of recent advances in synthesis, processing, doping, and interface engineering.
  • Analysis of key applications and their structure-property-performance dependencies.

Main Results:

  • Polymeric semiconductors' performance is governed by electronic structure, charge transport, molecular packing, and morphology.
  • Synthesis, processing, doping, and interface engineering are critical for improving stability, mobility, and efficiency.
  • Structure-property-performance relationships dictate functionality in applications like organic photovoltaics and transistors.

Conclusions:

  • Integrating polymer science and device engineering is key for high-performance, multifunctional, and sustainable polymeric electronics.
  • Knowledge gaps exist in areas like sustainable polymers and enhancing device stability.
  • Future research should focus on rational design for environmentally responsible electronic devices.