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相关概念视频

Field Effect Transistor01:29

Field Effect Transistor

396
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...
396
MOSFET: Enhancement Mode01:22

MOSFET: Enhancement Mode

326
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...
326

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Translating Extracellular Electron Transfer Activities with Organic Electrochemical Transistors
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调节电极工作功能和表面能量用于溶液剪切高性能有机场效应晶体管

Congcong Huang1, Chengtai Li1, Bowen Geng1

  • 1Key Laboratory of Organic Integrated Circuits, Ministry of Education & Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China.

ACS applied materials & interfaces
|May 29, 2024
PubMed
概括

高性能有机场效应晶体管 (OFET) 使用溶液加工的有机单晶体进行开发. 金电极的氧气等离子处理改善了表面能量和工作功能,提高了设备的性能,并使商业应用成为可能.

关键词:
在底部接触底部接触有机场效应晶体管有机单晶的有机单晶.溶液剪切技术 解决方案剪切技术调整工作功能的调整.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 电子工程 电子工程
  • 有机电子 有机电子

背景情况:

  • 底接触有机场效应晶体管 (OFET) 可以适应光刻法,但在溶液处理的有机半导体方面面临挑战.
  • 裸体电极的低表面能量和工作功能阻碍了电荷注入和晶体均生长.
  • 现有的方法很难优化高性能OFET的电极特性.

研究的目的:

  • 为了提高高性能OFET的金电极的表面能量和工作功能.
  • 为了使在底接触的OFET架构中使用溶液处理的有机单晶.
  • 开发一种简单的方法来制造高质量的单晶OFET.

主要方法:

  • 氧气等离子处理应用于金电极,以形成金氧化物层.
  • 分析了处理过的电极的表面能量和工作功能.
  • 大面积C8-BTBT有机单晶薄膜使用溶液剪切生长.
  • 测量了设备性能指标,包括载体移动性和下值波动.

主要成果:

  • 氧气等离子治疗使金电极的工作功能增加了约0.7 eV.
  • 电极的增强表面能量与AlOx介电器相匹配,促进了晶体的无生长.
  • 在底部接触的OFET中实现了6.7cm^2V^-1s^-1的最高载体移动性.
  • 演示了 63.6 mV dec^-1 的下值摆动和较低的接触电阻 (1.19 kΩ cm) 的急切切换.

结论:

  • 对于高性能OFET来说,黄金电极的表面能量和工作功能的同时改善至关重要.
  • 氧气等离子处理为制造高质量的溶液加工有机单晶OFET提供了有效的策略.
  • 开发的方法为有机电子产品的潜在商业应用提供了可行的方法.