Results 21 to 30 of about 1,030 (183)

Organic Electrochemical Transistors (OECTs) Toward Flexible and Wearable Bioelectronics

Molecules, 2020
Organic electronics have emerged as a fascinating area of research and technology in the past two decades and are anticipated to replace classic inorganic semiconductors in many applications. Research on organic light-emitting diodes, organic photovoltaics, and organic thin-film transistors is already in an advanced stage, and the derived devices are ...
Ariana Villarroel Marquez, Niall McEvoy, Amir Pakdel   +2 more
openaire   +5 more sources

Active Operation State Optimization of OECTs by Extremum Seeking Method Based on Amplitude Feedback

IEEE Journal of the Electron Devices Society
Organic electrochemical transistor (OECT) based biosensors have gained extensive research interest due to their high transconductance, low driving voltage, and biocompatibility.
Han Zhang, Fei Wu, Guohong Hu, Miao Xie, Wei Huang   +4 more
doaj   +1 more source

In Situ Electropolymerized Ambipolar Copolymers for Vertical OECTs

Small
AbstractA novel approach is reported for obtaining ambipolar electroactive polymers via in situ electropolymerization for vertical organic electrochemical transistor (vOECT) applications. It is shown that electropolymerization is a practical and efficient method to obtain copolymers without contamination from chemical polymerization processes.
Roman Gańczarczyk, Magdalena Rudowska, Maciej Gryszel, Adam Proń, Renata Rybakiewicz‐Sekita, Eric D. Głowacki   +5 more
openaire   +3 more sources

A Material‐Agnostic Strategy for Uniform Patterning of Conjugated Polymers Unveils the True Role of Porosity in Organic Electrochemical Transistors

Advanced Functional Materials, EarlyView.
A generalizable strategy for fabricating regular porous, chemically intact conjugated polymer channels reveals how porosity benefits organic electrochemical transistors. Composition‐dependent performance enhancement is linked to charge carrier mobility, volumetric capacitance, and effective doped volume.
Geon Gug Yang, Camille E. Cunin, Rebecca F. Meacham, Sang Ouk Kim, Aristide Gumyusenge   +4 more
wiley   +1 more source

A Performance Comparison Between Organic Electrochemical Transistor and Electrode Configurations for Enzymatic Sensing

Advanced Sensor Research
Organic electrochemical transistors (OECTs) excel at biosensing due to their high amplification factor, which allows for detecting low analyte concentrations and picking up weak physiological signals.
Abdulelah Saleh, Shofarul Wustoni, Luca Salvigni, Anil Koklu, Victor Druet, Jokubas Surgailis, Prem D. Nayak, Sahika Inal   +7 more
doaj   +1 more source

Bio‐Derived Polyelectrolyte Additive–Induced Interfacial Ion‐Diffusion Barriers for Nonvolatile Organic Artificial Synapses

Advanced Functional Materials, EarlyView.
Sodium alginate regulates interfacial ion transport and retention in electrolyte‐gated synaptic transistors. The carboxylate‐rich polymeric network forms a dynamic interfacial ion‐diffusion barrier that facilitates ion injection during programming while suppressing ion back‐diffusion, thereby stabilizing the electrochemically doped channel state.
Chaeyeon Han, Donghwa Lee, Hyeonse Kim, Hyoik Jang, Sein Chung, Geun Yeol Bae, Eunho Lee   +6 more
wiley   +1 more source

Balanced Ambipolar OECTs through Tunability of Blend Microstructure

ACS Applied Materials & Interfaces
Organic electrochemical transistors (OECTs) are promising building blocks for bioelectronics, bridging ionic biological signals and electronic circuits. Ambipolar OECTs, capable of both n- and p-type charge transport, are highly desirable for versatile bioelectronic applications, offering a simplified circuit design and enhanced sensing capabilities ...
Noam Moscovich, Sasha Simotko, Efrat Reyn, Ido Zerachia, Amit Hadar, Gitti L. Frey   +5 more
openaire   +2 more sources

n‐Type Semiconductor Hydrogels for Tunable Organic Electrochemical Transistors Operation and Evaporation‐Driven Synergistic Energy Harvesting and Thermal Management

Advanced Functional Materials, EarlyView.
This study develops a tunable n‐OSC hydrogel (PBFDO‐PAAc) platform with a tunable porous network and thermoelectric properties. It demonstrates the first report of n‐OSC hydrogels for evaporation‐driven hydrovoltaic‐thermoelectric electricity generation as well as chemically dedoping‐mediated OECT working mode reconfiguration. This work expands n‐OSCs’
Zhenli Zhou, Cong Huang, Haohong Jiang, Yuhao Jiang, Yaoyao Zhu, Boyuan Li, Yi Wang, Enna Ha, Ni Zhao, Shu‐Jen Wang   +9 more
wiley   +1 more source

The Impact of Non‐Monolithic Semiconductor Capacitance on Organic Electrochemical Transistors Performance and Design

Advanced Electronic Materials
The existing device models for organic electrochemical transistors (OECTs) fail to provide any device design guidelines for optimized performance parameters such as transconductance that are pivotal for the applications OECTs in sensing.
Ned E. Dreamer, Dimitrios A. Koutsouras, Morteza Hassanpour Amiri, Paschalis Gkoupidenis, Kamal Asadi   +4 more
doaj   +1 more source

All-Plastic Electrochemical Transistor for Glucose Sensing Using a Ferrocene Mediator

Sensors, 2009
We demonstrate a glucose sensor based on an organic electrochemical transistor (OECT) in which the channel, source, drain, and gate electrodes are made from the conducting polymer poly(3,4-ethylenedioxythiophene) doped with poly(styrene sulfonate) (PEDOT:
George G. Malliaras, Maria Nikolou, Róisín M. Owens, John A. DeFranco, Na Young Shim, Daniel A. Bernards, Daniel J. Macaya   +6 more
doaj   +1 more source