A Formula to Determine Energy Band Gap in Semiconducting Carbon Nanotubes. (28th February 2019)

• Record Type: Journal Article
• Authors: Gelao, G.; Marani, R.; Perri, A. G.
• Is Part Of: ECS journal of solid state science and technology. Volume 8:Number 2(2019)
• Page Start: M19
• Page End: M21
• Publication Date: 2019-02-28
• Subjects: Nanotubes -- Carbon NanoTubes -- CNTFET -- Energy Gap; Solid state chemistry -- Periodicals; Electronics -- Materials -- Periodicals; Electrochemistry -- Periodicals; 541.0421
• DOI: 10.1149/2.0201902jss
• Languages: English
• ISSNs: 2162-8777

Abstract

Abstract : In this paper we propose a new formula to evaluate in semiconducting Carbon Nanotubes the energy bandgap, i.e. the electronic transition energy from the first valence band to the first conduction band, which is fundamental for electronic applications of CNTs as channel in field effect transistors. The proposed formula is based on empirical correction factors, gained by an optimization procedure aimed at matching experimental data, which results in negligible errors. Moreover the proposed formula shows a new dependence on CNT symmetry indexes (n-m), which has been never observed in literature.