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Related Concept Videos

Field Effect Transistor01:29

Field Effect Transistor

570
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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Biasing of Metal-Semiconductor Junctions01:27

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Biasing metal-semiconductor junctions involves applying a voltage across the junction. Specifically, the metal is connected to a voltage source, while the semiconductor is grounded. This technique is essential for controlling the direction and magnitude of current flow in electronic devices, including diodes, transistors, and photovoltaic cells.
In Schottky junctions, where the semiconductor is n-type, applying a positive voltage to the metal relative to the semiconductor reduces its Fermi...
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Defect Engineering toward High-Performance Tin-Based Perovskite Field-Effect Transistors.

Xiaohan Zai1,2, He Dong1, Zihong Shen1

  • 1State Key Laboratory of Flexible Electronics (LOFE) & Institute of Flexible Electronics (IFE), MIIT Key Laboratory of Flexible Electronics (KLoFE), Shaanxi Key Laboratory of Flexible Electronics, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an, 710072, China.

Advanced Materials (Deerfield Beach, Fla.)
|August 4, 2025
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Summary
This summary is machine-generated.

Tin-based perovskite field-effect transistors (FETs) face challenges from defects impacting performance. This review details defect origins, passivation strategies, and future directions for high-performance Sn-based perovskite FETs.

Keywords:
Sn‐based perovskitecharge transportdefect engineeringfield‐effect transistorpassivation strategy

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Area of Science:

  • Materials Science
  • Solid-State Physics
  • Device Engineering

Background:

  • Tin (Sn)-based perovskite field-effect transistors (FETs) are promising for electronics and optoelectronics.
  • Defects like Sn vacancies and oxidation degrade film quality and device performance.
  • These defects hinder charge transport, ion migration, and stability in thin perovskite films.

Purpose of the Study:

  • To provide a comprehensive overview of defect properties and origins in Sn-based perovskite FETs.
  • To summarize advanced defect passivation strategies for improving device performance.
  • To discuss challenges and future prospects for high-performance Sn-based perovskite FETs.

Main Methods:

  • Review of defect properties and their influence on Sn-based perovskite FETs.
  • Systematic summary of defect passivation strategies: compositional engineering, dopant modification, dimensional engineering, interface passivation, and crystallization regulation.
  • Analysis of existing challenges and future research directions.

Main Results:

  • Defects, primarily at surfaces and grain boundaries, significantly impact charge transport, ion migration, and structural stability.
  • Various defect passivation strategies can mitigate these issues.
  • Understanding and engineering defects are crucial for advancing Sn-based perovskite FET technology.

Conclusions:

  • Defect engineering is key to overcoming limitations in Sn-based perovskite FETs.
  • Advanced passivation techniques offer pathways to enhanced device performance.
  • Further research is needed to address challenges for large-scale integration.