Display options
Cite
Li Q, Li F, Li Y, et al. Hydrogen Induced Etching Features of Wrinkled Graphene Domains. Nanomaterials (Basel). 2019;9(7)doi: 10.3390/nano9070930.
Li, Q., Li, F., Li, Y., Du, Y., Shih, T. M., & Kan, E. (2019). Hydrogen Induced Etching Features of Wrinkled Graphene Domains. Nanomaterials (Basel, Switzerland), 9(7), . https://doi.org/10.3390/nano9070930
Li, Qiongyu, et al. "Hydrogen Induced Etching Features of Wrinkled Graphene Domains." Nanomaterials (Basel, Switzerland) vol. 9,7 (2019). doi: https://doi.org/10.3390/nano9070930
Li Q, Li F, Li Y, Du Y, Shih TM, Kan E. Hydrogen Induced Etching Features of Wrinkled Graphene Domains. Nanomaterials (Basel). 2019 Jun 28;9(7). doi: 10.3390/nano9070930. PMID: 31261646; PMCID: PMC6669456.
Copy Download .nbib Format: NLM
Share it on

Nanomaterials (Basel). 2019 Jun 28;9(7). doi: 10.3390/nano9070930.

Hydrogen Induced Etching Features of Wrinkled Graphene Domains.

Nanomaterials (Basel, Switzerland)

Qiongyu Li, Fang Li, You Li, Yongping Du, Tien-Mo Shih, Erjun Kan

Affiliations

  1. Department of Applied Physics and Institution of Energy and Microstructure, Nanjing University of Science and Technology, Nanjing 210094, China.
  2. Department of Mechanical Engineering, University of California, Berkeley, CA 94720, USA.
  3. Department of Applied Physics and Institution of Energy and Microstructure, Nanjing University of Science and Technology, Nanjing 210094, China. [email protected].

PMID: 31261646 PMCID: PMC6669456 DOI: 10.3390/nano9070930

Abstract

Wrinkles are observed commonly in CVD (chemical vapor deposition)-grown graphene on Cu and hydrogen etching is of significant interest to understand the growth details, as well as a practical tool for fabricating functional graphene nanostructures. Here, we demonstrate a special hydrogen etching phenomenon of wrinkled graphene domains. We investigated the wrinkling of graphene domains under fast cooling conditions and the results indicated that wrinkles in the monolayer area formed more easily compared to the multilayer area (≥two layers), and the boundary of the multilayer area tended to be a high density wrinkle zone in those graphene domains, with a small portion of multilayer area in the center. Due to the site-selective adsorption of atomic hydrogen on wrinkled regions, the boundary of the multilayer area became a new initial point for the etching process, aside from the domain edge and random defect sites, as reported before, leading to the separation of the monolayer and multilayer area over time. A schematic model was drawn to illustrate how the etching of wrinkled graphene was generated and propagated. This work may provide valuable guidance for the design and growth of nanostructures based on wrinkled graphene.

Keywords: CVD synthesis; graphene; hydrogen etching; wrinkling

References

  1. Science. 2004 Oct 22;306(5696):666-9 - PubMed
  2. Phys Rev Lett. 2006 Nov 3;97(18):187401 - PubMed
  3. Science. 2008 Jun 6;320(5881):1308 - PubMed
  4. Science. 2008 Jul 18;321(5887):385-8 - PubMed
  5. Nature. 2009 Feb 5;457(7230):706-10 - PubMed
  6. Science. 2009 Jun 5;324(5932):1312-4 - PubMed
  7. Nano Lett. 2009 Jul;9(7):2600-4 - PubMed
  8. Nano Lett. 2009 Dec;9(12):4268-72 - PubMed
  9. Nat Nanotechnol. 2010 Aug;5(8):574-8 - PubMed
  10. Adv Mater. 2010 Sep 22;22(36):4014-9 - PubMed
  11. ACS Nano. 2011 May 24;5(5):4014-22 - PubMed
  12. ACS Nano. 2011 Jul 26;5(7):6069-76 - PubMed
  13. ACS Nano. 2011 Dec 27;5(12):9619-27 - PubMed
  14. Nano Lett. 2012 Feb 8;12(2):617-21 - PubMed
  15. Nano Lett. 2012 Jul 11;12(7):3431-6 - PubMed
  16. Nanotechnology. 2012 Sep 14;23(36):365701 - PubMed
  17. Nano Lett. 2013 Feb 13;13(2):486-90 - PubMed
  18. Nat Mater. 2013 Apr;12(4):321-5 - PubMed
  19. J Am Chem Soc. 2013 May 1;135(17):6431-4 - PubMed
  20. Science. 2013 Nov 8;342(6159):720-3 - PubMed
  21. Small. 2015 Mar 25;11(12):1418-22 - PubMed
  22. Nat Nanotechnol. 2016 May;11(5):426-31 - PubMed
  23. Nanoscale. 2016 Aug 7;8(29):14178-83 - PubMed

Publication Types

Grant support