Journal article
A General Method for Direct Assembly of Single Nanocrystals
H Zhang, Y Liu, A Ashokan, C Gao, Y Dong, C Kinnear, N Kirkwood, S Zaman, F Maasoumi, TD James, A Widmer-Cooper, A Roberts, P Mulvaney
Advanced Optical Materials | Published : 2022
Abstract
Controlled nanocrystal assembly is a pre-requisite for incorporation of these materials into solid state devices. Many assembly methods have been investigated which target precise nanocrystal positioning, high process controllability, scalability, and universality. However, most methods are unable to achieve all of these goals. Here, surface templated electrophoretic deposition (STED) is presented as a potential assembly method for a wide variety of nanocrystals. Controlled positioning and deposition of a wide range of nanocrystals into arbitrary spatial arrangements − including gold nanocrystals of different shapes and sizes, magnetic nanocrystals, fluorescent organic nanoparticles, and sem..
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Grants
Awarded by Australian National Fabrication Facility
Funding Acknowledgements
The authors thank the Australian Research Council for support under grants CE170100026, LP160100054, LE110100161, and LF100100117. The authors thank the Albert Shimmins Fund for a writing up award. The authors thank the Melbourne Advanced Microscopy Facility (Bio21, The University of Melbourne) for electron microscopy access. The authors thank Dr. Tian Zheng and the Materials Characterization and Fabrication Platform (MCFP, The University of Melbourne) for their assistance with AFM/MFM characterization. This work was performed in part at the Melbourne Centre for Nanofabrication (MCN), a node of the Australian National Fabrication Facility (ANFF). Open access publishing facilitated by The University of Melbourne, as part of the Wiley - The University of Melbourne agreement via the Council of Australian University Librarians.