Printed organic thin-film transistor-based integrated circuits

Mandal, Saumen; Noh, Yong‐Young

doi:10.1088/0268-1242/30/6/064003

Cited by 41 publications

(31 citation statements)

References 140 publications

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“…The switching speed of our devices exceeds many state-of-the-art reports for OFETs on plastic. 24,25 Self-alignment yielded very low geometric overlap between gate-drain and gate-source electrodes, as confirmed via FIB-SEM. This was verified by admittance measurements, revealing sub-pF capacitances.…”

Section: -mentioning

confidence: 67%

Self-aligned organic field-effect transistors on plastic with picofarad overlap capacitances and megahertz operating frequencies

Higgins

Muir

Dell’Erba

et al. 2016

Applied Physics Letters

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Using a combination of nanoimprint lithography, gate-source/drain self-alignment, and gravure and inkjet printing, we fabricate organic field-effect transistors on flexible plastic substrates with gate-source and gate-drain electrode overlap capacitances of COL < 1 pF, equivalent to channel-width normalised capacitances of C*OL = 0.15–0.23 pF mm−1. We compare photopatterned and nanoimprint lithography patterned channels of L ≈ 3.8 μm and L ≈ 800 nm, respectively. The reduction in L was found on average to result in order of magnitude greater switching frequencies. Gravure printing the dielectric (versus photo-patterning) was found to yield an order of magnitude lower overlap capacitance C*OL = 0.03 pF mm−1, at the expense of greater processing variation. Inkjet printed p- and n-type polymeric organic semiconductors were used to fabricate organic-field effect transistors with a peak cutoff frequencies of fS = 9.0 ± 0.3 MHz at VGS = 30 V, and transition frequencies of fT = 3.3 ± 0.2 MHz at VGS = 30 V.

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Section: -mentioning

confidence: 67%

Self-aligned organic field-effect transistors on plastic with picofarad overlap capacitances and megahertz operating frequencies

Higgins

Muir

Dell’Erba

et al. 2016

Applied Physics Letters

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“…In this section, we describe the approaches that are commonly used to fabricate flexible sensors, particularly the different methods used for the preparation of the sensing components, which have been demonstrated previously . Here, we list several commonly used methods and discuss the advantages as well as the disadvantages of each approach.…”

Section: Approaches To Fabricate Flexible Sensorsmentioning

confidence: 99%

An Overview of the Development of Flexible Sensors

et al. 2017

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Flexible sensors that efficiently detect various stimuli relevant to specific environmental or biological species have been extensively studied due to their great potential for the Internet of Things and wearable electronics applications. The application of flexible and stretchable electronics to device-engineering technologies has enabled the fabrication of slender, lightweight, stretchable, and foldable sensors. Here, recent studies on flexible sensors for biological analytes, ions, light, and pH are outlined. In addition, contemporary studies on device structure, materials, and fabrication methods for flexible sensors are discussed, and a market overview is provided. The conclusion presents challenges and perspectives in this field.

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“…Successful printed ring-oscillators in the range of kHz have been demonstrated, showing promise for complex analogue-to-digital converters (ADCs). 96 The development of paper-based transistors, as discussed in Section 3.2.4, will be key in the advances of paper-based integrated circuits. Robust and fast paper-based transistors will enable integrated circuits to be implemented for processing in ASSURED devices, and could be operated using on-board printed energy sources if low operation voltages are achieved.…”

Section: Integrated Circuitsmentioning

confidence: 99%