DataVXACS NanoPaper
journal article·2019-05-28

Nanocrystal Core Size and Shape Substitutional Doping and Underlying Crystalline Order in Nanocrystal Superlattices

Davit Jishkariani, Katherine C. Elbert, Yaoting Wu, Jennifer D. Lee, Michiel Hermes, Da Wang, Alfons van Blaaderen, Christopher B. Murray

ACS Nano· Volume 13· Issue 5
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Source abstract

Abstract

Substitutional doping is a potentially powerful technique to control the properties of nanocrystal (NC) superlattices (SLs). However, not every NC can be substituted into any lattice, as the NCs have to be close in size and shape, limiting the application of substitutional doping. Here we show that this limitation can be overcome by employing ligands of various size. We show that small NCs with long ligands can be substituted into SLs of big NCs with short ligands. Furthermore, we show that shape differences can also be overcome and that cubes can substitute spheres when both are coated with long ligands. Finally, we use the NC effective ligand size, softness, and effective overall size ratio to explain observed doping behaviors.
Source: openalex_inverted_index · Quality: baseline

Research context

Nanomaterials

OpenAlex topics: Quantum Dots Synthesis And Properties · Nanocluster Synthesis and Applications · Gold and Silver Nanoparticles Synthesis and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States

Soft Condensed Matter, Debye Institute for Nanomaterials Science, Utrecht University, Princetonplein 5, 3584 CC Utrecht, The Netherlands

Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States

Funding

University of Pennsylvania · Division of Graduate Education · Ministerie van Onderwijs, Cultuur en Wetenschap · FP7 Ideas: European Research Council · Division of Materials Research · Complex Assemblies of Soft Matter Laboratory

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