Mourdikoudis, S;
Colak, A;
Arfaoui, I;
Pileni, M-P;
(2017)
Hydrophilic Gold Supracrystals Differing by the Nanoparticle Crystalline Structure.
The Journal of Physical Chemistry C
, 121
(20)
pp. 10670-10680.
10.1021/acs.jpcc.6b10151.
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Abstract
Very few studies concern water-soluble nanocrystals self-assembled in crystalline 3D superlattices called supracrystals. Furthermore, the control of the crystalline structure of nanocrystals known as nanocrystallinity has not been yet achieved with water-soluble nanocrystals. Here we produce, selectively, 5 nm Au single-domain (SD) and polycrystalline (POLY) water-soluble nanocrystals. These nanocrystals self-assembled in face-centered-cubic (fcc) supracrystals. The supracrystal stiffness evolves with the nanocrystallinity, the nanocrystal surface charge, as well as the steric effect of the coating agent. The optical properties of SD and POLY nanoparticles and those of the related supracrystals are also presented. In addition, a nanocrystallinity segregation event was observed upon drying-assisted self-assembly of aqueous stoichiometric mixtures of SD and POLY NCs, as in the case of their hydrophobic counterparts.
| Type: | Article |
|---|---|
| Title: | Hydrophilic Gold Supracrystals Differing by the Nanoparticle Crystalline Structure |
| Event: | 18th International Symposium on Small Particles and Inorganic Clusters (ISSPIC) |
| Location: | Jyvaskyla, FINLAND |
| Dates: | 14 August 2016 - 19 August 2016 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1021/acs.jpcc.6b10151 |
| Publisher version: | http://dx.doi.org/10.1021/acs.jpcc.6b10151 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10058117 |
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