BROWSE

Related Scientist

CMCM's photo.

CMCM
다차원 탄소재료 연구단
more info

ITEM VIEW & DOWNLOAD

Dedicated preparation for in situ transmission electron microscope tensile testing of exfoliated graphene

Cited 0 time in webofscience Cited 0 time in scopus
23 Viewed 0 Downloaded
Title
Dedicated preparation for in situ transmission electron microscope tensile testing of exfoliated graphene
Author(s)
Kim, Kangsik; Jong Chan Yoon; Jaemin Kim; Jung Hwa Kim; Suk Woo Lee; Aram Yoon; Zonghoon Lee
Publication Date
2019-04
Journal
APPLIED MICROSCOPY, v.49, no.3, pp.1 - 7
Publisher
한국현미경학회
Abstract
Graphene, which is one of the most promising materials for its state-of-the-art applications, has received extensive attention because of its superior mechanical properties. However, there is little experimental evidence related to the mechanical properties of graphene at the atomic level because of the challenges associated with transferring atomically-thin two-dimensional (2D) materials onto microelectromechanical systems (MEMS) devices. In this study, we show successful dry transfer with a gel material of a stable, clean, and free-standing exfoliated graphene film onto a push-to-pull (PTP) device, which is a MEMS device used for uniaxial tensile testing in in situ transmission electron microscopy (TEM). Through the results of optical microscopy, Raman spectroscopy, and TEM, we demonstrate high quality exfoliated graphene on the PTP device. Finally, the stress–strain results corresponding to propagating cracks in folded graphene were simultaneously obtained during the tensile tests in TEM. The zigzag and armchair edges of graphene confirmed that the fracture occurred in association with the hexagonal lattice structure of graphene while the tensile testing. In the wake of the results, we envision the dedicated preparation and in situ TEM tensile experiments advance the understanding of the relationship between the mechanical properties and structural characteristics of 2D materials.
URI
https://pr.ibs.re.kr/handle/8788114/12111
DOI
10.1007/s42649-019-0005-5
ISSN
2287-5123
Appears in Collections:
Center for Multidimensional Carbon Materials(다차원 탄소재료 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
There are no files associated with this item.

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse