Guiding kinetic trajectories between jammed and unjammed states in 2D colloidal nanocrystal-polymer assemblies with zwitterionic ligands
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). The Molecular Foundry; Univ. of California, Berkeley, CA (United States). Dept. of Materials Science and Engineering
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Materials Sciences Division
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). The Molecular Foundry
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). The Molecular Foundry. Materials Sciences Division
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Materials Sciences Division; Univ. of Massachusetts, Amherst, MA (United States). Conte Center for Polymer Research. Polymer Science and Engineering Dept.; Beijing Univ. of Chemical Technology (China). Beijing Advanced Innovation Center for Soft Matter Science and Engineering; Tohoku Univ., Sendai (Japan). World Premier International Research Center Initiative–Advanced Inst. for Materials Research (WPI-AIMR)
Mesostructured matter composed of colloidal nanocrystals in solidified architectures abounds with broadly tunable catalytic, magnetic, optoelectronic, and energy storing properties. Less common are liquid-like assemblies of colloidal nanocrystals in a condensed phase, which may have different energy transduction behaviors owing to their dynamic character. Limiting investigations into dynamic colloidal nanocrystal architectures is the lack of schemes to control or redirect the tendency of the system to solidify. We show how to solidify and subsequently reconfigure colloidal nanocrystal assemblies dimensionally confined to a liquid-liquid interface. Our success in this regard hinged on the development of competitive chemistries anchoring or releasing the nanocrystals to or from the interface. With these chemistries, it was possible to control the kinetic trajectory between quasi–two-dimensional jammed (solid-like) and unjammed (liquid-like) states. In future schemes, it may be possible to leverage this control to direct the formation or destruction of explicit physical pathways for energy carriers to migrate in the system in response to an external field.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- AC02-05CH11231
- OSTI ID:
- 1477357
- Journal Information:
- Science Advances, Vol. 4, Issue 8; ISSN 2375-2548
- Publisher:
- AAASCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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