Device physics of organic electrochemical transistors

Friedlein, Jacob T.; McLeod, Robert R.; Rivnay, Jonathan

doi:10.1016/j.orgel.2018.09.010

Cited by 261 publications

(323 citation statements)

References 187 publications

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“…Maximum channel‐width‐normalized transconductance ( g m / W) max is the peak value of the Figure d plot. Further analysis is given in Figures S6a and S6b, which show plots of ( g m / W) max versus V D and ( g m / W) max versus 1/ L . As expected according to Equation

g_{normalm} = \frac{\partial I_{normalD}}{\partial V_{normalG}} = \frac{W}{L} μ C_{normalG} V_{normalD}

g m / W increases linearly with V D , Figure S6a, and is also linear with 1/ L , Figure S6b.…”

Section: Resultssupporting

confidence: 53%

Sub‐3 V ZnO Electrolyte‐Gated Transistors and Circuits with Screen‐Printed and Photo‐Crosslinked Ion Gel Gate Dielectrics: New Routes to Improved Performance

Bidoky

Tang

et al. 2019

Adv Funct Materials

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A facile, high-resolution patterning process is introduced for fabrication of electrolyte-gated transistors (EGTs) and circuits using a photo-crosslinkable ion gel and stencil-based screen printing. The photo-crosslinkable gel is based on a triblock copolymer incorporating UV-sensitive terminal azide functionality and a common ionic liquid. Using this material in conjunction with conventional photolithography and stenciling techniques, well-defined 0.5-1 µm thick ion gel films are patterned on semiconductor channels as narrow as 10 µm. The resulting n-type ZnO EGTs display high electron mobility (>2 cm 2 Vs −1 ) and on/off current ratios (>10 5 ). Further, EGT-based inverters exhibit static gains >23 at supply voltages below 3 V, and five-stage EGT ring oscillator circuits display dynamic propagation delays of 50 µs per stage. In general, the screen printing and photo-crosslinking strategy provides a clean room-compatible method to fabricate EGT circuits with improved sensitivity (gain) and computational power (gain × oscillating frequency). Detailed device analysis indicates that significantly shorter delay times, of order 1 µs, can be obtained by improving the ion gel conductance.

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g_{normalm} = \frac{\partial I_{normalD}}{\partial V_{normalG}} = \frac{W}{L} μ C_{normalG} V_{normalD}

g m / W increases linearly with V D , Figure S6a, and is also linear with 1/ L , Figure S6b.…”

Section: Resultssupporting

confidence: 53%

Sub‐3 V ZnO Electrolyte‐Gated Transistors and Circuits with Screen‐Printed and Photo‐Crosslinked Ion Gel Gate Dielectrics: New Routes to Improved Performance

Bidoky

Tang

et al. 2019

Adv Funct Materials

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“…C CH scales with film volume and R S scales as . 21,35 Thus, by putting together the scaling laws for C CH ∝ 1 and R S , . 21 A faster response can therefore be attained by making the channel τ ∝ d WL thinner and smaller channel geometry.…”

Section: Resultsmentioning

confidence: 99%

“…21,35 Thus, by putting together the scaling laws for C CH ∝ 1 and R S , . 21 A faster response can therefore be attained by making the channel τ ∝ d WL thinner and smaller channel geometry. As shown in Figure S6a, the response time scales with the channel thickness and geometry for our spray-coated OECT.…”

Section: Resultsmentioning

confidence: 99%

Universal Spray-Deposition Process for Scalable, High-Performance, and Stable Organic Electrochemical Transistors

Surendran

Moser

et al. 2020

ACS Appl. Mater. Interfaces

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Organic electrochemical transistors (OECTs) with high transconductance and good operating stability in an aqueous environment are receiving substantial attention as promising ion-toelectron transducers for bioelectronics. However, to date, in most of the reported OECTs, the fabrication procedures have been devoted to the spin coating processes which may nullify the advantages of large-area and scalable manufacturing. In addition, conventional microfabrication and photolithography techniques are complicated or incompatible with various nonplanar flexible and curved substrates. Herein, we demonstrate a facile patterning method via spray-deposition to fabricate ionic liquid doped poly(3,4ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS)-based OECTs, with a high peak transconductance of 12.9 mS and high device stability over 4000 switching cycles.More importantly, this facile technique makes it possible to fabricate high-performance OECTs on versatile substrates with different textures and form factors such as thin permeable membranes, flexible plastic sheets, hydrophobic elastomers and rough textiles. Overall, the results highlight the spray-deposition technique as a convenient route to prepare high performing OECTs and will contribute to the translation of OECTs into real-world applications.

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“…A transistor is a three-terminal device consist of a metallic source, drain and gate electrode (158) that…”

Section: Organic Electrochemical Transistor (Oect)mentioning

confidence: 99%

Conducting Polymer Electrodes for Thermogalvanic Cells

Wijeratne

2018

Linköping Studies in Science and Technology. Dissertations

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Donata, Ellen, and Dan, for being good friends for all these years, for all the memorable parties they organized in their place, for the best time we shared during their stay in Norrkoping. Robert, the Australian friend, for being my other main collaborator throughout these years, for sharing, encouraging, helping and exciting discussions, for all the fun time we shared during these years. Jesper, for being a close friend and for the excellent help in finishing the most challenging Ph.D. course 'Advanced Organic Electronics' ever I took. Felipe, for being a good friend and for sharing jokes and exciting discussions. Eliot, my photography teacher, for elevating my interest in photography Josefine and Theresia, for being my first Swedish friends and sharing the office room in Täppan and help in translating. Maria, Elina, and Ioannis (Yainni), the Greek friends, for your wonderful friendship and all the fun time we shared. Anna H., for helping with equipment, and chemicals ordering Ziauddin (Zia 2.0), for discussing the latest updates in the Cricket world (our favorite sport) and for interesting discussion in electrochemistry.

show abstract

Device physics of organic electrochemical transistors

Cited by 261 publications

References 187 publications

Sub‐3 V ZnO Electrolyte‐Gated Transistors and Circuits with Screen‐Printed and Photo‐Crosslinked Ion Gel Gate Dielectrics: New Routes to Improved Performance

Sub‐3 V ZnO Electrolyte‐Gated Transistors and Circuits with Screen‐Printed and Photo‐Crosslinked Ion Gel Gate Dielectrics: New Routes to Improved Performance

Universal Spray-Deposition Process for Scalable, High-Performance, and Stable Organic Electrochemical Transistors

Conducting Polymer Electrodes for Thermogalvanic Cells

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