Fermi level engineering of single-walled carbon nanotubes by AuCl3 doping

Journal of the American Chemical Society
Ki Kang KimYoung Hee Lee

Abstract

We investigated the modulation of optical properties of single-walled carbon nanotubes (SWCNTs) by AuCl 3 doping. The van Hove singularity transitions (E 11 (S), E 22 (S), E 11 (M)) in absorption spectroscopy disappeared gradually with an increasing doping concentration and a new peak appeared at a high doping concentration. The work function was downshifted up to 0.42 eV by a strong charge transfer from the SWCNTs to AuCl 3 by a high level of p-doping. We propose that this large work function shift forces the Fermi level of the SWCNTs to be located deep in the valence band, i.e., highly degenerate, creating empty van Hove singularity states, and hence the work function shift invokes a new asymmetric transition in the absorption spectroscopy from a deeper level to newly generated empty states.

References

Dec 12, 2001·Physical Review Letters·R MartelP Avouris
Aug 1, 2002·Journal of the American Chemical Society·Hee Cheul ChoiHongjie Dai
Mar 10, 2005·Nano Letters·Christian KlinkePhaedon Avouris
Apr 12, 2005·Nature Materials·Michael J O' ConnellStephen K Doorn
Aug 20, 2005·Journal of Nanoscience and Nanotechnology·Ki Kang KimYoung Hee Lee
Mar 25, 2006·Science·Zhihong ChenPhaedon Avouris
Jan 22, 2008·Journal of the American Chemical Society·Hyeon-Jin ShinYoung Hee Lee

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Citations

Jan 26, 2012·ACS Applied Materials & Interfaces·Paul R JaroszBrian J Landi
Sep 17, 2011·ACS Nano·Changshui HuangPadma Gopalan
Mar 25, 2011·Chemical Communications : Chem Comm·Daeseob ShimJong Hun Han
Mar 15, 2014·Nanoscale Research Letters·Zhaohui LiXuewu Wang
Feb 16, 2016·Accounts of Chemical Research·Ki Kang KimYoung Hee Lee
Nov 24, 2016·Science and Technology of Advanced Materials·Ying Zhou, Reiko Azumi
Jun 10, 2015·Physical Chemistry Chemical Physics : PCCP·Chang-Soo ParkEun Kyu Kim
Aug 24, 2017·Nanotechnology·E S ZhukovaB P Gorshunov
Sep 1, 2017·Chemical Society Reviews·Viet Phuong PhamJae-Young Choi
Oct 28, 2009·Nanotechnology·Dong-Wook ShinJi-Beom Yoo
Apr 9, 2010·Advanced Materials·Dukhyun ChoiJong Min Kim
Nov 22, 2018·Proceedings of the National Academy of Sciences of the United States of America·Po-Hsun HoAbram L Falk
May 11, 2011·ChemSusChem·Woo Jong Yu, Young Hee Lee
Jun 30, 2010·Nanotechnology·Ki Kang KimJing Kong
Mar 20, 2018·Nature Communications·Kazuhiro YanagiJunichiro Kono
Jan 1, 2014·Nano Convergence·Sang Hoon Chae, Young Hee Lee
Dec 6, 2008·Journal of the American Chemical Society·Soo Min KimYoung Hee Lee
Sep 29, 2009·Journal of the American Chemical Society·Shimou ChenHisanori Shinohara
Aug 25, 2010·ACS Nano·Fethullah GüneşYoung Hee Lee

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