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https://hdl.handle.net/123456789/236| Τύπος: | Άρθρο σε επιστημονικό περιοδικό |
| Τίτλος: | Updating the role of reduced graphene oxide ink on field emission devices in synergy with charge transfer materials |
| Συγγραφέας: | [EL] Στυλιανάκης, Μηνάς[EN] Stylianakis, Minas [EL] Βισκαδούρος, Γεώργιος[EN] Viskadouros, Georgios |
| Συντελεστής: | [EL] Πολυζωίδης, Χρήστος[EN] Polyzoidis, Christos [EN] Veisakis, George [EL] Κενανάκης, Γεώργιος[EN] Kenanakis, Georgios [EL] Κορνήλιος, Νικόλαος[EN] Kornilios, Nikolaos [EL] Πετρίδης, Κωνσταντίνος[EN] Petridis, Konstantinos [EL] Kυμάκης, Εμμανουήλ[EN] Kymakis, Emmanuel |
| Ημερομηνία: | 22/01/2019 |
| Περίληψη: | Hydroiodic acid (HI)-treated reduced graphene oxide (rGO) ink/conductive polymeric composites are considered as promising cold cathodes in terms of high geometrical aspect ratio and low field emission (FE) threshold devices. In this study, four simple, cost-effective, solution-processed approaches for rGO-based field effect emitters were developed, optimized, and compared; rGO layers were coated on (a) n+ doped Si substrate, (b) n+-Si/P3HT:rGO, (c) n+-Si/PCDTBT:rGO, and (d) n+-Si/PCDTBT:PC71BM:rGO composites, respectively. The fabricated emitters were optimized by tailoring the concentration ratios of their preparation and field emission characteristics. In a critical composite ratio, FE performance was remarkably improved compared to the pristine Si, as well as n+-Si/rGO field emitter. In this context, the impact of various materials, such as polymers, fullerene derivatives, as well as different solvents on rGO function reinforcement and consequently on FE performance upon rGO-based composites preparation was investigated. The field emitter consisted of n+-Si/PCDTBT:PC71BM(80%):rGO(20%)/rGO displayed a field enhancement factor of ~2850, with remarkable stability over 20 h and low turn-on field in 0.6 V/µm. High-efficiency graphene-based FE devices realization paves the way towards low-cost, large-scale electron sources development. Finally, the contribution of this hierarchical, composite film morphology was evaluated and discussed. |
| Γλώσσα: | Αγγλικά |
| Σελίδες: | 15 |
| DOI: | 10.3390/nano9020137 |
| ISSN: | 2079-4991 |
| Θεματική κατηγορία: | [EL] Επιστήμες Μηχανικού και Τεχνολογία[EN] Engineering and Technology |
| Λέξεις-κλειδιά: | field emission; graphene; reduced graphene oxide; polymer composites; graphene ink; cold cathode; Fowler–Nordheim |
| Κάτοχος πνευματικών δικαιωμάτων: | © 2019 by the authors. Licensee MDPI |
| Όροι και προϋποθέσεις δικαιωμάτων: | This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
| Διατίθεται ανοιχτά στην τοποθεσία: | https://www.mdpi.com/2079-4991/9/2/137/htm |
| Ηλεκτρονική διεύθυνση του τεκμηρίου στον εκδότη: | https://www.mdpi.com/2079-4991/9/2/137 |
| Ηλεκτρονική διεύθυνση περιοδικού: | https://www.mdpi.com/journal/nanomaterials |
| Τίτλος πηγής δημοσίευσης: | Nanomaterials |
| Τεύχος: | 2 |
| Τόμος: | 9 |
| Σελίδες τεκμηρίου (στην πηγή): | Article no 137 |
| Σημειώσεις: | This research was funded by State Scholarships Foundation (SSF) and cofinanced by the European Union (European Social Fund—ESF) and Greek national funds through the action entitled “Reinforcement of Postdoctoral Researchers”, in the framework of the Operational Programme “Human Resources Development Program, Education and Lifelong Learning” of the National Strategic Reference Framework (NSRF) 2014–2020, Grant No. 13992. |
| Εμφανίζεται στις συλλογές: | Μεταδιδακτορικοί ερευνητές |
Αρχεία σε αυτό το τεκμήριο:
| Αρχείο | Περιγραφή | Σελίδες | Μέγεθος | Μορφότυπος | Έκδοση | Άδεια | |
|---|---|---|---|---|---|---|---|
| 3) Article1_Stylianakis_Nanomaterials 2019, 9, 137.pdf | Article1 | 15 σελίδες σελίδες | 4.63 MB | Adobe PDF | Δημοσιευμένη/του Εκδότη |  | Δείτε/ανοίξτε |