Electrode and dielectric layer interface device engineering study using furan flanked diketopyrrolopyrrole-dithienothiophene polymer based organic transistors
|
Published Version
(PDF 2MB)
73371464. Available under License Creative Commons Attribution 4.0. |
Open access copy at publisher website
Description
We successfully demonstrated a detailed and systematic enhancement of organic field effect transistors (OFETs) performance using dithienothiophene (DTT) and furan-flanked diketopyrrolopyrrole based donor–acceptor conjugated polymer semiconductor namely PDPPF-DTT as an active semiconductor. The self-assembled monolayers (SAMs) treatments at interface junctions of the semiconductor–dielectric and at the semiconductor–metal electrodes has been implemented using bottom gate bottom contact device geometry. Due to SAM treatment at the interface using tailored approach, the significant reduction of threshold voltage (Vth) from − 15.42 to + 5.74 V has been observed. In addition to tuning effect of Vth, simultaneously charge carrier mobility (µFET) has been also enhanced the from 9.94 × 10−4 cm2/Vs to 0.18 cm2/Vs. In order to calculate the trap density in each OFET device, the hysteresis in transfer characteristics has been studied in detail for bare and SAM treated devices. Higher trap density in Penta-fluoro-benzene-thiol (PFBT) treated OFET devices enhances the gate field, which in turn controls the charge carrier density in the channel, and hence gives lower Vth = + 5.74 V. Also, PFBT treatment enhances the trapped interface electrons, which helps to enhance the mobility in this OFET architecture. The overall effect has led to possibility of reduction in the Vth with simultaneous enhancements of µFET in OFETs, following systematic device engineering methodology.
Impact and interest:
Citation counts are sourced monthly from Scopus and Web of Science® citation databases.
These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.
Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.
Full-text downloads:
Full-text downloads displays the total number of times this work’s files (e.g., a PDF) have been downloaded from QUT ePrints as well as the number of downloads in the previous 365 days. The count includes downloads for all files if a work has more than one.
ID Code: | 207071 | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Item Type: | Contribution to Journal (Journal Article) | ||||||||||||
Refereed: | Yes | ||||||||||||
ORCID iD: |
|
||||||||||||
Additional Information: | Funding Information: B. B. Patil and T.T. Do, A.S are thankful to QUT for offering scholarship to conduct the research work. We are thankful to CRC for Polymers, Central Analytical Research Facility (CARF), and Institute of Future Environments, Queensland University of Technology (QUT) for providing equipment support. P. Sonar is thankful to QUT for the financial support from the Australian Research Council (ARC) for the Future Fellowship (FT130101337) and QUT core funding (QUT/322120-0301/07). A. K. Pandey acknowledges funding from AISRF (Project 53820). | ||||||||||||
Measurements or Duration: | 10 pages | ||||||||||||
DOI: | 10.1038/s41598-020-76962-x | ||||||||||||
ISSN: | 2045-2322 | ||||||||||||
Pure ID: | 73371464 | ||||||||||||
Divisions: | Current > Research Centres > Centre for Materials Science Current > Research Centres > Centre for Clean Energy Technologies & Practices Past > Institutes > Institute for Future Environments Past > QUT Faculties & Divisions > Science & Engineering Faculty Current > QUT Faculties and Divisions > Faculty of Science Current > Schools > School of Chemistry & Physics Current > Schools > School of Electrical Engineering & Robotics |
||||||||||||
Funding Information: | B. B. Patil and T.T. Do, A.S are thankful to QUT for offering scholarship to conduct the research work. We are thankful to CRC for Polymers, Central Analytical Research Facility (CARF), and Institute of Future Environments, Queensland University of Technology (QUT) for providing equipment support. P. Sonar is thankful to QUT for the financial support from the Australian Research Council (ARC) for the Future Fellowship (FT130101337) and QUT core funding (QUT/322120-0301/07). A. K. Pandey acknowledges funding from AISRF (Project 53820). | ||||||||||||
Copyright Owner: | The Author(s) | ||||||||||||
Copyright Statement: | This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au | ||||||||||||
Deposited On: | 15 Dec 2020 22:50 | ||||||||||||
Last Modified: | 19 Apr 2024 21:26 |
Export: EndNote | Dublin Core | BibTeX
Repository Staff Only: item control page