Abstract
We investigate the transport properties of few-nm-long single-walled carbon nanotube (SWCNT) p-n junctions for the first time by using ab initio quantum transport calculations. Unlike the previously reported few-μm-long SWCNT p-n junctions, which rectify positively, all the investigated ultrashort SWCNT p-n junctions show negative rectification effect, accompanied by negative differential resistance.
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Acknowledgments
This work was supported by the NSFC (Grants Nos. 10774003, 90626223, and 20731162012), National 973 Projects (Grant No. 2007CB936200, MOST of China), Fundamental Research Funds for the Central Universities, Program for New Century Excellent Talents in University of MOE, National Foundation for Fostering Talents of Basic Science (Grant No. J0630311) of China. We thank Prof. Toshiaki Kato for helpful discussion.
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Dedicated to Professor Shigeru Nagase on the occasion of his 65th birthday and published as part of the Nagase Festschrift Issue.
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Yu, L., Yan, X., Li, H. et al. Negative rectification and negative differential resistance in nanoscale single-walled carbon nanotube p-n junctions. Theor Chem Acc 130, 353–359 (2011). https://doi.org/10.1007/s00214-011-0990-0
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DOI: https://doi.org/10.1007/s00214-011-0990-0