在电解质门聚合物晶体管中的电化学兴奋剂
Jonathan D Yuen1, Anoop S Dhoot, Ebinazar B Namdas
1Center for Polymers and Organic Solids, University of California, Santa Barbara, California 93106, USA.
Journal of the American Chemical Society
|October 31, 2007
概括
电化学兴奋剂使半导体聚合物场效应晶体管 (FET) 中的高电流成为可能. 这项研究表明,PEO-LiClO4电解质接FET的可逆性兴奋剂,在低温下达到高电流密度.
科学领域:
- 有机电子学有机电子学
- 材料科学是一种材料科学.
- 固态物理 固态物理
背景情况:
- 有机场效应晶体管 (OFET) 对灵活的电子有希望.
- 控制半导体聚合物的导电性对于设备性能至关重要.
- 电化学兴奋剂提供了一种调整聚合物导电性的方法.
研究的目的:
- 调查电解质门聚合物FET中高通道电流背后的机制.
- 为了分析电化学杂的多2,5-bis3-四基硫-2-) [3,2-b]硫) (PBTTT-C14) 的温度依赖导电性.
- 为了确定在低温下化PBTTT-C14的电流承载能力.
主要方法:
- 制造PEO-LiClO4电解质接FET,使用PBTTT-C14作为活性层.
- 测量pi-pi*吸收和传导率以探测兴奋剂效应.
- 温度依赖的导电性测量作为低温 (低至4.2K) 的源-排水电压的函数.
主要成果:
- 在低门电压下高通道电流被归因于可逆电化学兴奋剂.
- 在低温下,电化学杂的PBTTT-C14的导电性表现出与温度的非线性行为.
- 观察到导电性的温度依赖性交叉在源-排水电压变化的情况下.
- 持续高电流密度,高达10^6A/cm^2在4.2K,在化PBTTT-C14片中实现.
结论:
- 可逆电化学兴奋剂是实现高性能聚合物FET的有效策略.
- 观察到的非线性导电性和交叉性突出显示了低温中合聚合物中独特的电荷传输机制.
- PBTTT-C14显示了有机电子产品中高电流应用的潜力,特别是在冷条件下.
相关概念视频
MOSFET: Enhancement Mode
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 current...
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 current...
Characteristics of MOSFET
Metal-oxide-semiconductor field-effect Transistors, or MOSFETs, play a critical role in electronic circuits. They are primarily utilized for amplifying and switching signals.
Various vital parameters influence their functionality, which is crucial for theory and electronics applications. First, channel dimensions, precisely length, and width, are pivotal. The size of these channels affects the transistor's ability to carry current and switching speeds; shorter channels typically enable quicker...
Various vital parameters influence their functionality, which is crucial for theory and electronics applications. First, channel dimensions, precisely length, and width, are pivotal. The size of these channels affects the transistor's ability to carry current and switching speeds; shorter channels typically enable quicker...
MOSFET
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...
In an n-MOSFET, the structure includes n-type source and drain...
Biasing of FET
Biasing a Junction Field Effect Transistor (JFET) is crucial for setting operational parameters and ensuring efficient functioning in electronic circuits. JFETs are characterized by using a single carrier type in N-channel or P-channel configurations, where the channel is surrounded by PN junctions. These junctions are central to the device's ability to control current flow.
In an N-channel JFET, the structure consists of N-type material forming the channel on a P-type substrate, with the gate...
In an N-channel JFET, the structure consists of N-type material forming the channel on a P-type substrate, with the gate...
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...
MOSFET: Depletion Mode
Depletion-mode MOSFETs represent a unique subset of MOSFET technology, functioning fundamentally differently from their enhancement-mode counterparts. Unlike enhancement MOSFETs, which require a positive gate-source voltage (Vgs) to turn on, depletion-mode MOSFETs are inherently conductive and "normally on" devices.
The primary characteristic of depletion-mode MOSFETs is their ability to conduct current between the drain and source terminals without gate bias. This inherent conductivity arises...
The primary characteristic of depletion-mode MOSFETs is their ability to conduct current between the drain and source terminals without gate bias. This inherent conductivity arises...


