Conductivity inversion of methyl viologen-modified random networks of single-walled carbon nanotubes. (15th January 2023)

• Record Type: Journal Article
• Authors: Przewłoka, Aleksanda; Rehman, Adil; Smirnov, Serguei; Karpierz-Marczewska, Ewelina; Krajewska, Aleksandra; Liszewska, Malwina; Dróżdż, Piotr; Pavłov, Krystian; Dub, Maksym; Novytskyi, Serhi; Jankiewicz, Bartłomiej; Mierczyk, Zygmunt; Rumyantsev, Sergey; Lioubtchenko, Dmitri V.
• Is Part Of: Carbon. Volume 202(2023)Part 2
• Page Start: 214
• Page End: 220
• Publication Date: 2023-01-15
• Subjects: Single-walled carbon nanotubes -- SWCNT -- Methyl viologen -- Modification -- UV light -- Conductivity; Carbon -- Periodicals; Carbone -- Périodiques; Koolstof; Toepassingen; Electronic journals; 546.681
• DOI: 10.1016/j.carbon.2022.10.071
• Languages: English
• ISSNs: 0008-6223

Abstract

Abstract: One of the challenges of using carbon nanotubes electronics is achieving precise control of the conductivity type. It is particularly difficult to obtain the n-type conductive nanotubes. One of the most common methods of CNTs modification allowing to change their conductivity type is chemical functionalization. This paper describes the results of studies on non-covalent modification of randomly oriented single-walled carbon nanotubes (SWCNT) layers with methyl viologen (MV), which allows for the change of the conductivity of SWCNT from p - to n -type. The properties of pristine and MV-modified SWCNT have been compared using Scanning Electron Microscopy, Raman spectroscopy, and X-ray Photoelectron Spectroscopy. The SWCNT conductivity type change was confirmed by photo-conductance under ultraviolet illumination and measurements in the field effect transistor configuration. Graphical abstract: