Graphene self-folding: Evolution of free-standing few-layer graphene in plasma synthesis

被引：3
|
作者：
Lopez-Camara, Claudia-F [1 ,2 ]
Fortugno, Paolo [1 ]
Heidelmann, Markus [2 ,3 ]
Wiggers, Hartmut [1 ,2 ]
Schulz, Christof [1 ,2 ]
机构：
[1] Univ Duisburg Essen, Inst Energy & Mat Proc React Fluids EMPI, D-47057 Duisburg, Germany
[2] Univ Duisburg Essen, Ctr Nanointegrat Duisburg Essen CENIDE, D-47057 Duisburg, Germany
[3] Univ Duisburg Essen, Interdisciplinary Ctr Analyt Nanoscale ICAN, D-47057 Duisburg, Germany
来源：
CARBON | 2024年 / 218卷
关键词：
Graphene; Gas -phase synthesis; Plasma synthesis; Graphene folding; GAS-PHASE SYNTHESIS;
D O I：
10.1016/j.carbon.2023.118732
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Substrate and catalyst free gas-phase plasma synthesis of freestanding few-layer graphene (FLG) flakes leads to crumpled FLG structures. In this paper, we elucidate a folding-based mechanism and structure-formation process in accordance with literature on the stability of graphene sheets. Transmission electron microscopy is applied to thermophoretically-sampled FLG at various distances from the plasma zone. Single-layer and few-layer graphene were observed, and a morphology pattern evolution could be discerned. A conceptual model of graphene formation and growth is derived, starting from initial rounded single-layer graphene of a few hundred nanometer in diameter to, eventually, self-folded and strongly crumpled FLG.
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收藏
页数：8
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