| Title | Clean Transfer of Large Graphene Single Crystals for High-Intactness Suspended Membranes and Liquid Cells |
| Authors | Zhang, Jincan Lin, Li Sun, Luzhao Huang, Yucheng Koh, Ai Leen Dang, Wenhui Yin, Jianbo Wang, Mingzhan Tan, Congwei Li, Tianran Tan, Zhenjun Liu, Zhongfan Peng, Hailin |
| Affiliation | Peking Univ, Beijing Sci & Engn Ctr Nanocarbons, Ctr Nanochem, Beijing Natl Lab Mol Sci,Coll Chem & Mol Engn, Beijing 100871, Peoples R China. Peking Univ, Acad Adv Interdisciplinary Studies, Beijing 100871, Peoples R China. Stanford Univ, Stanford Nano Shared Facil, Stanford, CA 94305 USA. |
| Keywords | clean transfer graphene liquid cells graphene single crystals interfacial force control suspended graphene membranes CHEMICAL-VAPOR-DEPOSITION ELECTRON-MICROSCOPY INTRINSIC STRENGTH LAYER GRAPHENE COPPER FOILS GROWTH FILMS SPECTROSCOPY |
| Issue Date | 2017 |
| Publisher | ADVANCED MATERIALS |
| Citation | ADVANCED MATERIALS.2017,29(26). |
| Abstract | The atomically thin 2D nature of suspended graphene membranes holds promising in numerous technological applications. In particular, the outstanding transparency to electron beam endows graphene membranes great potential as a candidate for specimen support of transmission electron microscopy (TEM). However, major hurdles remain to be addressed to acquire an ultraclean, high-intactness, and defect-free suspended graphene membrane. Here, a polymer-free clean transfer of sub-centimeter-sized graphene single crystals onto TEM grids to fabricate large-area and high-quality suspended graphene membranes has been achieved. Through the control of interfacial force during the transfer, the intactness of large-area graphene membranes can be as high as 95%, prominently larger than reported values in previous works. Graphene liquid cells are readily prepared by p-p stacking two clean single-crystal graphene TEM grids, in which atomic-scale resolution imaging and temporal evolution of colloid Au nanoparticles are recorded. This facile and scalable production of clean and high-quality suspended graphene membrane is promising toward their wide applications for electron and optical microscopy. |
| URI | http://hdl.handle.net/20.500.11897/472179 |
| ISSN | 0935-9648 |
| DOI | 10.1002/adma.201700639 |
| Indexed | SCI(E) |
| Appears in Collections: | å å¦ä¸ å å å·¥ç¨ å¦é ¢ 前沿交叉学科研究院 |
