Direct Printed Flexible Organic Thin-Film Transistors With Cross-Linked PVA-Carrageenan Gate Dielectric

Massey, Roslyn S.; Song, Xiaoyu; Prakash, Ravi

doi:10.1109/lsens.2023.3271061

Cited by 3 publications

(1 citation statement)

References 13 publications

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“…This work furthered my research into developing a fully additively manufactured OEGFET aptasensor device (Figure 89). The presented work is a portion of a journal article published in the IEEE Sensors Letters under the title "Direct Printed Flexible Organic Thin-Film Transistors with Cross-Linked PVA-Carrageenan Gate Dielectric" [465].…”

Section: Direct Printing Of Organic Field Effect Transistorsmentioning

confidence: 99%

Next Generation Non-Invasive Biomarker Testing in Saliva: The Organic Electrolyte Gated Field Effect Transistor Aptasensor System

Massey

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Diagnostic biomolecule quantification in healthcare relies on effective but centralized laboratory testing procedures. However, as the need for testing rapidly grows, the current process is struggling to meet the demand. Rapid point-of-contact analysis devices are not capable of non-invasive quantification of small, dilute molecules such as steroid hormones in saliva. Current literature bioquantification devices suffer from drawbacks such as short shelf life, high intra-device variability, sample matrix effects, material incompatibilities, high-cost fabrication and data collection that rely on laboratory conditions and processes. This body of work took our organic electrolyte gated field effect transistor (OEGFET), a novel biosensor architecture, and developed it into a feasible platform for real-world biomolecule quantification applications.1-iv | P a g e For all of the papers presented in this work I was listed as the primary author as I contributed to study conception and design, device fabrication, device testing, analysis and interpretation of results, and manuscript draft preparation. My supervisor Prof. R. Prakash contributed to study conception and design, result interpretation, and manuscript preparation for all papers.Additional Contributions: J1. Dr. S. Bebe fabricated the top gate surfaces and helped with editing the manuscript draft. J2. Dr. R. Amache developed the bio-gel fabrication process, fabricated the bio-gel EDLC capacitors and helped with manuscript editing. Dr. S. Bebe also helped with manuscript preparation and fabricated the device top gates. J3. I also redesigned the OEGFET devices into a flexible format including establishing an APTES immobilization process that would be suitable for Kapton and safe to perform in our cleanroom. J4. I also optimized the new models and designed their parameter extraction processes. J5. I also redesigned the APTES process to prevent delamination. Prof. R. Prakash also acquired ethics board approval for the collection and testing of human saliva. J6. B. Gamero and I decided on the current shunt method of data collection for the OEGFET, and I wrote the software for the OEGFET data collection with the board. B. Gamero designed the footprint, EIS collection method, and external circuitry of the printed circuit board. J7. We used the same board developed by B. Gamero from J6. J8. We used the same board developed by B. Gamero from J6. J9. I designed the PVA-Carrageenan cross linking on surface process based on the bulk crosslinking work of Dr. R. Amache, transistor device testing, analysis and interpretation of results, and manuscript draft preparation. X. Song performed capacitor fabrication, capacitor data collection and analysis, and contributed to manuscript preparation. J10. Dr. E. McConnell and Prof. M. DeRosa of the Ladder group at Carleton designed and produced the αSyn aptamer and contributed to manuscript preparation. D. Chan and Prof. M. Holahan performed the fluorescence quantification and contributed to manuscript preparation. Additional contributio...

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Section: Direct Printing Of Organic Field Effect Transistorsmentioning

confidence: 99%

Next Generation Non-Invasive Biomarker Testing in Saliva: The Organic Electrolyte Gated Field Effect Transistor Aptasensor System

Massey

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Towards sustainable, direct printed, organic transistors with biocompatible copolymer gate dielectrics

Massey,

Song,

Ashoori

et al. 2024

Can J Chem Eng

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We have investigated the potential of three dielectric materials to meet the future demands of green dielectrics: Polycaprolactone (PCL) thermoplastic, polyvinyl alcohol (PVA)‐carrageenan (CAR) crosslinked biopolymer, and boron nitride nanotubes (BNNTs) as a nano additive in PVA. Metal–insulator–metal (MIM) capacitors and organic thin film transistors (OTFT) were built with bilayer dielectric stacks of PVA‐CAR, PVA‐PCL, and PVA‐BNNT materials to examine their electrical properties. The PVA‐CAR layer uses a cyclic freeze thaw process to crosslink PVA and CAR for superior mechanical and electrical properties to either material alone. The PVA‐CAR MIM capacitors showed a dielectric constant of 23, which was found to be consistent with the extracted OTFT gate dielectric characteristics. Of the OTFT devices tested, PVA‐CAR OTFT showed highest device currents at low applied biases and produced an ON/OFF ratio of 104–105, both values were highest amongst the tested gate dielectrics. This material is therefore extremely promising for green electronics. The PVA‐PCL OTFT had very low leakage current and beneficial hydrophilic properties with comparable electrical properties to the commonly used organic material polytetrafluoroethylene. PVA‐BNNT MIM capacitors showed a low dielectric constant of 0.7, and the high resistivity makes this a promising material for shielding or substrates in high frequency applications. All three materials have the potential to fulfil different niches in a sustainable electronics future.

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Parametric Analysis of Transimpedance Converters with Extended Functionality

Barylo,

Holyaka,

Boyko

et al. 2024

2024 IEEE 17th International Conference on Advanced Trends in Radioelectronics, Telecommunications and Computer Engineering (TC

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Direct Printed Flexible Organic Thin-Film Transistors With Cross-Linked PVA-Carrageenan Gate Dielectric

Cited by 3 publications

References 13 publications

Next Generation Non-Invasive Biomarker Testing in Saliva: The Organic Electrolyte Gated Field Effect Transistor Aptasensor System

Next Generation Non-Invasive Biomarker Testing in Saliva: The Organic Electrolyte Gated Field Effect Transistor Aptasensor System

Towards sustainable, direct printed, organic transistors with biocompatible copolymer gate dielectrics

Parametric Analysis of Transimpedance Converters with Extended Functionality

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