Type
ArticleKAUST Department
Advanced Membranes and Porous Materials Research CenterChemical Engineering Program
Physical Science and Engineering (PSE) Division
KAUST Grant Number
KAUST18SC01URF/1/3435
Date
2020-10-10Online Publication Date
2020-10-10Print Publication Date
2021-02Submitted Date
2020-07-02Permanent link to this record
http://hdl.handle.net/10754/665112
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Show full item recordAbstract
We report the observation of Peierls-type metal-insulator transition in carbon nanostructures formed by chemical vapor deposition inside the pore network of the ZSM-5 zeolite. The Raman spectrum of this nanocarbon@ZSM-5 indicates a clear signature of the radial breathing mode (RBM) for (3,0) carbon nanotubes that can constitute the carbon network segments. Electrical transport measurements on multiple few-micron-sized nanocarbon@ZSM-5 crystals showed metallic temperature dependence of resistance down to 30 K, at which point the resistance exhibited a sharp upturn that is accompanied by the opening of a quasigap at the Fermi level as indicated by the differential resistance measurements. Further Hall measurements have yielded both the sign of the charge carrier and its density. The latter demonstrated excellent consistency with the quasigap data. We employed first-principles calculations to verify that there can indeed be softening of the phonon modes in the (3,0) carbon nanotubes.Citation
Zhang, B., Zhang, T., Pan, J., Chow, T. P., Aboalsaud, A. M., Lai, Z., & Sheng, P. (2021). Peierls-type metal-insulator transition in carbon nanostructures. Carbon, 172, 106–111. doi:10.1016/j.carbon.2020.10.037Sponsors
P. S. wishes to acknowledge support by the Research Grants Council of Hong Kong, Grant 16308216, and by collaborative grant from KAUST, Saudi Arabia KAUST18SC01. Z. Lai wishes to acknowledge the KAUST competitive research grant URF/1/3435–01.Publisher
Elsevier BVJournal
CarbonarXiv
2008.10160Additional Links
https://linkinghub.elsevier.com/retrieve/pii/S0008622320310010ae974a485f413a2113503eed53cd6c53
10.1016/j.carbon.2020.10.037
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