Electrical characteristics of ink-jet printed, all-polymer electrochemical transistors

Basiricò, Laura; Cosseddu, Piero; Scidà, Alessandra; Fraboni, Beatrice; Malliaras, George G.; Bonfiglio, Annalisa

doi:10.1016/j.orgel.2011.11.010

Cited by 62 publications

(57 citation statements)

References 10 publications

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“…However, thin film organic transistors gated via a solid or gelled electrolyte layer have proven to be a promising robust alternative to achieve low driving voltages. There are two kinds of electrolyte-gated organic thin film transistors; electrolyte-gated organic field-effect transistors (EGOFET) [5][6][7] and organic electrochemical transistors (OECT) [8][9][10][11][12]. These two transistor types are not only governed by different switching mechanisms but they also exhibit differences in device characteristics and opportunities regarding device manufacturing.…”

Section: Introductionmentioning

confidence: 99%

Fast-switching all-printed organic electrochemical transistors

Ersman¹,

Nilsson²,

Kawahara

et al. 2013

Organic Electronics

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Symmetric and fast (~ 5 ms) on-to-off and off-to-on drain current switching characteristics have been obtained in screen printed organic electrochemical transistors (OECT) including PEDOT:PSS (poly(3,4-ethylenedioxythiophene) doped with poly(styrene sulfonic acid)) as the active transistor channel material. Improvement of the drain current switching characteristics is made possible by including a carbon conductor layer on top of PEDOT:PSS at the drain electrode that is in direct contact with both the channel and the electrolyte of the OECT. This carbon conductor layer suppresses the effects from a reduction front that is generated in these PEDOT:PSS-based OECTs. In the off-state of these devices this reduction front slowly migrate laterally into the PEDOT:PSS drain electrode, which make off-to-on switching slow. The OECT including carbon electrodes was manufactured using only standard printing process steps and may pave the way for fully integrated organic electronic systems that operate at low voltages for applications such as logic circuits, sensors and active matrix addressed displays.

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Section: Introductionmentioning

confidence: 99%

Fast-switching all-printed organic electrochemical transistors

Ersman¹,

Nilsson²,

Kawahara

et al. 2013

Organic Electronics

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“…This material is typically cast and dried into films, 22 where it is used in transistor and biosensor applications, but it cannot meet the faster charge transfer requirements of medical electrodes or cardiac patch technologies. 23 Both systems were loaded into a non-conductive poly(vinyl alcohol) (PVA) hydrogel at varied percentage content and the CP PEDOT was electropolymerised through the PVA. The electrical properties and physical appearance of the gels were analysed at time points between 10 and 80 min of electrodeposition to determine whether PEDOT was being polymerised within the PVA as hypothesised.…”

Section: -2mentioning

confidence: 99%

Mediating conducting polymer growth within hydrogels by controlling nucleation

2015

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This study examines the efficacy of primary and secondary nucleation for electrochemical polymerisation of conductive polymers within poly(vinyl alcohol) methacrylate hydrogels. The two methods of nucleation investigated were a primary heterogeneous mechanism via introduction of conductive bulk metallic glass (Mg64Zn30Ca5Na1) particles and a secondary mechanism via introduction of “pre-polymerised” conducting polymer within the hydrogel (PEDOT:PSS). Evidence of nucleation was not seen in the bulk metallic glass loaded gels, however, the PEDOT:PSS loaded gels produced charge storage capacities over 15 mC/cm2 when sufficient polymer was loaded. These studies support the hypothesis that secondary nucleation is an efficient approach to producing stand-alone conducting hydrogels.

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“…The relationship between U R , U I and these unknowns can be found by inserting Equations (15), (16) in (26), (27). After some manipulation one obtains:…”

Section: Information Recoverymentioning

confidence: 99%

“…In the last years several technologies have been developed to this purpose, but the emerging one is based on the Radio-Frequency IDentification (RFID) concept [12], due to the convergence of several new ideas and approaches such as the RF-energy harvesting [13,14], RF-carrier reuse, load modulation method, organic [15][16][17][18][19][20][21] and inkjet printed [22][23][24][25][26][27] electronics. The RF energy harvesting and RF-carrier reuse, for example, allow for battery-less (i.e., passive) RFID sensors that can operate for years without any maintenance.…”

Section: Introductionmentioning

confidence: 99%

Theory of Zero-Power Rfid Sensors Based on Harmonic Generation and Orthogonally Polarized Antennas

Alimenti¹,

Roselli²

2013

PIER

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Abstract-In this paper a novel approach is proposed to solve the issue of the absolute accuracy required by the most of the passive chip-less RFID sensors. To this purpose the sensor information is encoded as the phase difference between two signals, one of the two acting as the reference signal for the other one. First the tag receives a carrier at frequency f 0 , then two equal signals at frequency 2f 0 are generated by means of a diode-based frequency doubler and a power divider. At this point one of the two signals is phase-shifted using a passive sensing element. Finally the 2f 0 signals are re-irradiated by exploiting two orthogonally polarized antennas. With this approach the sensor information can be extracted by a suitable reader equipped with two complex (I/Q) receivers. The idea will be first developed from a theoretical basis and then verified with several particular cases. The novel tag concept is compatible with paper substrate and inkjet printing technology since antennas diodes and passive sensing elements, i.e., all the main tag components, are going to be developed on paper materials.

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Electrical characteristics of ink-jet printed, all-polymer electrochemical transistors

Cited by 62 publications

References 10 publications

Fast-switching all-printed organic electrochemical transistors

Fast-switching all-printed organic electrochemical transistors

Mediating conducting polymer growth within hydrogels by controlling nucleation

Theory of Zero-Power Rfid Sensors Based on Harmonic Generation and Orthogonally Polarized Antennas

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