Advances in organic transistor-based biosensors: from organic electrochemical transistors to electrolyte-gated organic field-effect transistors

Kergoat, Loïg; Piro, Benoı̂t; Berggren, Magnus; Horowitz, Gilles; Pham, Minh‐Chau

doi:10.1007/s00216-011-5363-y

Cited by 258 publications

(195 citation statements)

References 82 publications

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“…Actually, an EGOFET looks like an OECT (organic electrochemical transistor) [10][11][12][13][14][15][16]. However, in an OECT, the on/off switch is produced by electron transfer from the electrolyte and the semiconductor (doping/de-doping) [8], whereas only capacitive processes occur for EGOFETs but no charge transfer.…”

Section: Egofetsmentioning

confidence: 99%

“…As shown on Figure 2, when the gate is (for example) negatively polarized, the excess of electrons at the gate surface produces the accumulation of cations at the gate/electrolyte interface; conversely, accumulation of anions at the electrolyte/semiconductor interface produces accumulations of holes in the topmost layer of the semiconductor [17,18], which causes the OSC to become conducting. It has been shown that a significant double layer can form even for very low operating potentials, nevertheless sufficient to generate a locally high electrical field at the electrolyte/semiconductor interface, and therefore a high charge carrier density [8]. The electrolyte used can be polymers [19][20][21][22], ionic liquids [23][24][25] or ionic gels [16,[26][27][28][29].…”

Section: Egofetsmentioning

confidence: 99%

“…General scheme of an organic field-effect transistor (OFET) (a) and an electrolyte-gated organic field-effect transistor (EGOFET) (b). Adapted from [8] with kind permission from Springer Science+Business Media. © Springer-Verlag, 2011.…”

Section: Introductionmentioning

confidence: 99%

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Electrolytic Gated Organic Field-Effect Transistors for Application in Biosensors—A Review

2016

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Electrolyte-gated organic field-effect transistors have emerged in the field of biosensors over the last five years, due to their attractive simplicity and high sensitivity to interfacial changes, both on the gate/electrolyte and semiconductor/electrolyte interfaces, where a target-specific bioreceptor can be immobilized. This article reviews the recent literature concerning biosensing with such transistors, gives clues to understanding the basic principles under which electrolyte-gated organic field-effect transistors work, and details the transduction mechanisms that were investigated to convert a receptor/target association into a change in drain current.

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Section: Egofetsmentioning

confidence: 99%

Section: Egofetsmentioning

confidence: 99%

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Electrolytic Gated Organic Field-Effect Transistors for Application in Biosensors—A Review

2016

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“…In addition, the ability of organic semiconductors to operate in aqueous environment and their proved biocompatibility [14][15][16] make them the ideal interface between electronics and biological systems. 17 However, despite quick advancements of organic bioelectronics in recent years, only few examples have been described about interfacing conducting polymers with living systems. In most cases, they are related to studies focused on cell adhesion, [18][19][20] measuring neuronal activity, 21 or developing sensors for toxicology.…”

Section: Apl Materials 3 014909 (2015)mentioning

confidence: 99%

A bio-inspired memory device based on interfacing Physarum polycephalum with an organic semiconductor

et al. 2014

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The development of devices able to detect and record ion fluxes is a crucial point in order to understand the mechanisms that regulate communication and life of organisms. Here, we take advantage of the combined electronic and ionic conduction properties of a conducting polymer to develop a hybrid organic/living device with a three-terminal configuration, using the Physarum polycephalum Cell (PPC) slime mould as a living bio-electrolyte. An over-oxidation process induces a conductivity switch in the polymer, due to the ionic flux taking place at the PPC/polymer interface. This behaviour endows a current-depending memory effect to the device.

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confidence: 99%

Ultrathin silica film derived with ultraviolet irradiation of perhydropolysilazane for high performance and low voltage organic transistor and inverter

et al. 2018

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In recent years, organic electronic devices have become more and more popular, such as organic solar cell (OSC) [1][2][3][4], organic light emitting diode (OLED) [5][6][7] and organic thin film transistor (OTFT) [8][9][10][11] by virtue of their light weight, easy-processing and flexibility. As OTFT could be used as functional device or drive circuit to activate other devices [12,13], the development of OTFT becomes more urgent in practical applications. Low voltage operation as one of the major performances is very important to apply OTFT in low power consumption situations, especially in wearable and portable devices. As we all know, dielectric layer plays an important role to modulate the operation voltage of OTFT. Utilization of ultrathin dielectric film is an effective method to construct low voltage transistor. Therefore, new dielectric materials and novel processing methods for ultrathin dielectric films are two main ways to adjust the energy consumption performance of OTFT. Generally, most dielectric materials are composed of polymers or inorganic oxides [14,15]. For polymers, although the cheap and easy-process features make them popular in organic electronics [16,17], ultrathin polymer film has a risk of leakage. Inorganic oxides, such as silica and alumina, generally have excellent stability and low leakage even with ultrathin thickness, but they are usually prepared by physical vapor deposition (PVD) [18], chemical vapor deposition (CVD) [19], sol-gel [20] and atom layer deposition (ALD) [21], etc., which usually need high temperature, expensive equipment, and complex procedures. Therefore, from the standpoint of performance, preparation of ultrathin inorganic oxides layer through low cost and mild condition is highly meaningful for the construction of low voltage OTFT.Silica is one of the most extensively used inorganic dielectric oxides because of its high performance and mature processing [22][23][24][25]. However, the traditional processes are not compatible with modern organic electronics and large-scale production that generally requires low-cost and low temperature process. Recently, silica derived from solution precursor conversion method has drawn more and more attention. The most common solution precursor is perhydropolysilazane (PHPS) which possesses basic chemical structure of [-Si(H 2 )-NH-] and usually goes through the hydrolysis, condensation and oxidation reaction of active Si-N bond and Si-H bond to form silica [26][27][28][29][30][31][32]. In our previous work, the conversion is finished by thermal annealing of PHPS on a hot plate [33]. Despite lower power consumption method, it may be not completely compatible with organic electronics due to the thermal annealing procedure. Some polymer substrates with low glass transition temperature cannot endure the annealing temperature [34][35][36]. Therefore, we further exploit milder silica preparation method based on PHPS. In this letter, we introduce an ultraviolet irradiation conversion to fabricate ultrathin silica film and further appl...

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Advances in organic transistor-based biosensors: from organic electrochemical transistors to electrolyte-gated organic field-effect transistors

Cited by 258 publications

References 82 publications

Electrolytic Gated Organic Field-Effect Transistors for Application in Biosensors—A Review

Electrolytic Gated Organic Field-Effect Transistors for Application in Biosensors—A Review

A bio-inspired memory device based on interfacing Physarum polycephalum with an organic semiconductor

Ultrathin silica film derived with ultraviolet irradiation of perhydropolysilazane for high performance and low voltage organic transistor and inverter

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