지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
Contamination on two-dimensional (2D) crystal surfaces poses serious limitations on fundamental studies and applications of 2D crystals. Surface residues induce uncontrolled doping and charge carrier scattering in 2D crystals, and trapped residues in mechanically assembled 2D vertical heterostructures often hinder coupling between stacked layers. Developing a process that can reduce the surface residues on 2D crystals is important. In this study, we explored the use of atomic force microscopy (AFM) to remove surface residues from 2D crystals. Using various transmission electron microscopy (TEM) investigations, we confirmed that surface residues on graphene samples can be effectively removed via contact-mode AFM scanning. The mechanical cleaning process dramatically increases the residue-free areas, where high-resolution imaging of graphene layers can be obtained. We believe that our mechanical cleaning process can be utilized to prepare high-quality 2D crystal samples with minimum surface residues.
목차
등록된 정보가 없습니다.
참고문헌 (17)
참고문헌 신청
B. Alemán / 2010 / Transfer-free batch fabrication of large-area suspended graphene membranes / ACS Nano 4:4762~4768
G. Algara-Siller / 2014 / Dry-cleaning of graphene / Appl. Phys. Lett 104:153115
S. Z. Butler / 2013 / Progress, challenges, and opportunities in two-dimensional materials beyond graphene / ACS Nano 7:2898~2926
Y. Chen / 2016 / Progress and challenges in transfer of large-area graphene films / Adv. Sci. (Weinheim) 3:1500343
C. R. Dean / 2010 / Boron nitride substrates for highquality graphene electronics / Nat. Nanotechnol 5:722~726
G. Algara-Siller / 2014 / Dry-cleaning of graphene / Appl. Phys. Lett 104:153115
S. Z. Butler / 2013 / Progress, challenges, and opportunities in two-dimensional materials beyond graphene / ACS Nano 7:2898~2926
Y. Chen / 2016 / Progress and challenges in transfer of large-area graphene films / Adv. Sci. (Weinheim) 3:1500343
C. R. Dean / 2010 / Boron nitride substrates for highquality graphene electronics / Nat. Nanotechnol 5:722~726
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