Determination of band gaps of self-assembled carbon nanotube films using Tauc/Davis-Mott model

Xinming Li, Hongwei Zhu, Jinquan Wei, Kunlin Wang, Eryang Xu, Zhen Li, Dehai Wu

Research output: Contribution to journalArticlepeer-review

98 Scopus citations

Abstract

The band gaps of self-assembled single-walled carbon nanotube (SWNT) films have been determined through curve fitting using the semi-empirical Tauc and Davis-Mott model, based on the measurement of optical absorption at the visible and near infrared range. This study provides a practicable option for the determination of band gaps for ultra-thin SWNT films or multi-walled carbon nanotube films whose vHs peaks cannot be well resolved in absorption spectra.

Original languageEnglish
Pages (from-to)341-344
Number of pages4
JournalApplied Physics A: Materials Science and Processing
Volume97
Issue number2
DOIs
StatePublished - Nov 2009
Externally publishedYes

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