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论文类型：期刊论文

发表时间：2012-12-01

发表刊物：CARBON

收录刊物：Scopus、SCIE、EI

卷号：50

期号：15

页面范围：5537-5542

ISSN号：0008-6223

摘要：Electrically driven thermal radiation spectra from single suspended carbon nanocoils (CNCs) were investigated. The suspended CNC, whose structure is a hybrid between sp(2) graphite-like nanocrystallites and sp(3) amorphous carbon, shows thermally excited emission peaks superimposed on the blackbody radiation spectrum for wavelengths above 600 nm. It is believed that at least four pairs of energy bands exist around the Fermi energy level and the observed emission peaks are attributed to thermally-excited interband electron transitions in the CNC. Photoluminescence measurements for the CNCs show similar emission peaks to the thermally excited emission, which further supports our speculation on the electronic structure of the CNC. (C) 2012 Elsevier Ltd. All rights reserved.