A Large-Scale Array of Ordered Graphene-Sandwiched Chambers for Quantitative Liquid-Phase Transmission Electron Microscopy
- Authors
- Lim, Kitaek; Bae, Yuna; Jeon, Sungho; Kim, Kihwan; Kim, Byung Hyo; Kim, Joodeok; Kang, Sungsu; Heo, Taeyeong; Park, Jungwon; Lee, Won Chul
- Issue Date
- Oct-2020
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- anodic aluminum oxide; graphene liquid cells; in situ TEM; liquid-phase TEM
- Citation
- ADVANCED MATERIALS, v.32, no.39
- Journal Title
- ADVANCED MATERIALS
- Volume
- 32
- Number
- 39
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/39826
- DOI
- 10.1002/adma.202002889
- ISSN
- 0935-9648
- Abstract
- Liquid-phase transmission electron microscopy (TEM) offers a real-time microscopic observation of the nanometer scale for understanding the underlying mechanisms of the growth, etching, and interactions of colloidal nanoparticles. Despite such unique capability and potential application in diverse fields of analytical chemistry, liquid-phase TEM studies rely on information obtained from the limited number of observed events. In this work, a novel liquid cell with a large-scale array of highly ordered nanochambers is constructed by sandwiching an anodic aluminum oxide membrane between graphene sheets. TEM analysis of colloidal gold nanoparticles dispersed in the liquid is conducted, employing the fabricated nanochamber array, to demonstrate the potential of the nanochamber array in quantitative liquid-phase TEM. The independent TEM observations in the multiple nanochambers confirm that the monomer attachment and coalescence processes universally govern the overall growth of nanoparticles, although individual nanoparticles follow different growth trajectories.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > ETC > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.