High-Strength Chemical-Vapor–Deposited Graphene and Grain Boundaries-Reference-Cited by-同舟云学术

High-Strength Chemical-Vapor–Deposited Graphene and Grain Boundaries

Published:2013-05-31 Issue:6136 Volume:340 Page:1073-1076
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Lee Gwan-Hyoung¹²,Cooper Ryan C.¹,An Sung Joo¹,Lee Sunwoo³,van der Zande Arend¹⁴,Petrone Nicholas¹,Hammerberg Alexandra G.¹,Lee Changgu⁵⁶,Crawford Bryan⁷,Oliver Warren⁷,Kysar Jeffrey W.¹,Hone James¹

Affiliation:

1. Department of Mechanical Engineering, Columbia University, New York, NY 10027, USA.

2. Samsung–Sungkyunkwan University (SKKU) Graphene Center (SSGC), Suwon 440-746, Korea.

3. Department of Electrical Engineering, Columbia University, New York, NY 10027, USA.

4. Energy Frontier Research Center, Columbia University, New York, NY 10027, USA.

5. School of Mechanical Engineering, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi 440-746, Korea.

6. SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi 440-746, Korea.

7. Nanomechanics, Oak Ridge, TN 37830, USA.

Abstract

Graphene Staying Strong Although exfoliated graphene can be extremely strong, it is produced on too small a scale for materials application. Graphene can be produced on a more practical scale by chemical vapor deposition, but the presence of grain boundaries between crystallites apparently weakens the material. Lee et al. (p. 1073 ) show that postprocessing steps during the removal of the graphene sheets can oxidize the grain boundaries and weaken them. If these steps are avoided, the material is comparable in strength to exfoliated graphene.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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