Direct Laser Writing of Metal and Metal Oxide Patterns for Flexible and Memristive Electronic Components
Notice bibliographique
Résumé
Growing interest in the fields of flexible electronics and AI are leading the development of new manufacturing techniques able to make computer hardware devices that can suite their unique needs. Research into these areas is stalled by the high cost of manufacturing putting rapid and low-cost manufacturing methods in high demand. Direct Laser Writing, as a novel manufacturing technique, has been shown to be able to produce flexible electronic devices rapidly and with the use of inexpensive raw materials. It works by treating a substrate coated in a metal ion precursor with focused laser irradiation. Where the laser interacts with the precursor organic reduction agents within the precursor are able to reduce the metal ions which then form nanoparticles that are then sintered to form interconnected nanoparticle networks. \nIn this work direct laser writing is utilized to develop a manufacturing technique of novel flexible electronics for neuromorphic computing hardware. Direct laser writing of copper and copper patterns is used to study the relationship between applied laser energy and electrical properties of deposited patterns. Other metals are also studied. Anodic metals are not able to be fully reduced and are deposited as metal oxides. Cathodic metals are easily reduced and deposited as metals. Metals with intermediate reduction potentials can selectively be deposited as either metals or metal oxides. Deposition of metal alloys with homogenous composition is also demonstrated through the deposition of copper-nickel alloys. \nMemristor devices fabricated from Cu/Cu2O/Cu patterns are produced using direct laser writing. Planar patterns are fabricated and shown to have a high sensitivity to changing laser settings used to print the oxide region. Bipolar resistive switching is observed with setting and resetting occurring near +/- 0.7V, and ratios between the high and low resistance states being as high as 102 are achieved. Fabricated devices are shown to flexible and stable over long periods of time. \nMemristor based logic structures Including Boolean “And” and “Or” gates are fabricated in planar patterns from memristor pairs. Logic gates show signal processing in times as short as 300ns. Moderate signal degradation from the logic gates are noted at 9% and 21% in the “Or” gate and “And” gate respectively. Memristor crossbar arrays are also fabricated from Cu/Cu2O/Cu and Ag/Cu2O/Cu patterns. Their multiple resistance states are programmed and performances are compared. \nIn summary Direct laser writing is demonstrated as a process that has promise as a method for producing flexible novel computer hardware. Further work is recommended to focus on identifying combinations of materials and laser settings that can further improve the consistency and performance of the direct laser writing fabricated memristor devices.
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Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule tête enseignante, pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».