Signal amplification with patterned conducting polymer electrodes based organic thin film transistor circuit

被引：0
作者：
Shiny Nair
Roshna B. Raj
T. Mukundan
机构：
[1] Naval Physical and Oceanographic Laboratory,Division of Electronics Engineering
[2] Cochin University of Science and Technology,undefined
来源：
SN Applied Sciences | 2019年 / 1卷
关键词：
Amplifier; Patterning; Conducting polymer; Organic thin film transistor; Parylene lift-off; Wafer probing test jig;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Organic thin film transistors (OTFTs) fabricated with non-destructive patterning techniques are the building blocks in realizing flexible electronic interface for sensing applications. In this study, a single stage differential amplifier is demonstrated with flexible OTFTs. The OTFTs were fabricated with thermally evaporated Pentacene as the semiconducting layer. The electrodes of the OTFTs were realized using a conductive polymer composite, poyaniline:polystyrene sulphonic acid (PANi-PSS), patterned by a modified Parylene lift-off process. Electrical characteristics of bottom contact TFTs with polymeric PANi-PSS electrodes is superior to those with conventional metal electrodes due to a lower charge injection barrier and resultant lower contact resistance. The measurement of the transistor characteristics and the amplifier response reported has been carried out with a wafer probing test jig set up. The differential amplifier realized with p-type Pentacene transistors with mobility, 0.5 cm2/Vs, exhibited a voltage gain of 10 dB in a frequency bandwidth of 1 kHz.
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