Strong dependence of air stability on thickness in n-doped carbon nanotube thermoelectrics

• Verfasst von: Dörling, Bernhard [VerfasserIn]
• Verfasst von: Hawkey, Angus [VerfasserIn]
• Verfasst von: Zaumseil, Jana [VerfasserIn]
• Verfasst von: Campoy-Quiles, Mariano [VerfasserIn]
• Titel: Strong dependence of air stability on thickness in n-doped carbon nanotube thermoelectrics
• Verf.angabe: Bernhard Dörling, Angus Hawkey, Jana Zaumseil, and Mariano Campoy-Quiles
• E-Jahr: 2024
• Jahr: 11 March 2024
• Umfang: 6 S.
• Illustrationen: Illustrationen
• Fussnoten: Online veröffentlicht: 14. März 2024 ; Gesehen am 14.08.2024
• Titel Quelle: Enthalten in: Applied physics letters
• Ort Quelle: Melville, NY : American Inst. of Physics, 1962
• Jahr Quelle: 2024
• Band/Heft Quelle: 124(2024), 11 vom: März, Artikel-ID 113302, Seite 1-6
• ISSN Quelle: 1077-3118
• DOI: doi:10.1063/5.0198773
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1898655960

Abstract

We demonstrate that the observed (in-)stability of n-doped carbon nanotube films in air not only depends on the employed dopant but is also strongly affected by sample-specific factors, such as the film thickness and density. We show this for two typical dopants, polyethylenimine and a potassium crown ether complex, by preparing films of increasing thickness. We argue that reports on dopant stability cannot be properly assessed without knowledge of these sample-specific parameters, which explains some of the conflicting results in the literature.