Please use this identifier to cite or link to this item:
http://hdl.handle.net/1942/27348
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Li, Run | - |
dc.contributor.author | Ripoll, Marisol | - |
dc.contributor.author | REDDY, Naveen | - |
dc.contributor.author | Dhont, Jan | - |
dc.contributor.author | Dierick, Ruben | - |
dc.contributor.author | Hens, Zeger | - |
dc.contributor.author | Clasen, Christian | - |
dc.date.accessioned | 2018-11-13T13:28:21Z | - |
dc.date.available | 2018-11-13T13:28:21Z | - |
dc.date.issued | 2018 | - |
dc.identifier.citation | Langmuir, 34 (48), pag. 14633-14642 | - |
dc.identifier.issn | 0743-7463 | - |
dc.identifier.uri | http://hdl.handle.net/1942/27348 | - |
dc.description.abstract | Linear flow dichroism is shown to be a powerful tool to characterize the hydrody- namic dimensions of extremely small non-spherical colloids in solution. Dispersions of prolate and oblate quantum dots (QD) are employed to investigate the validity of flow dichroism as a characterization tool. Shape-anisotropic QD are important from an application perspective, where it is necessary to have good knowledge of their hydro- dynamic dimensions in order to predict and control their orientation during solution processing. Flow dichroism quantifies the tumbling motion of QD in shear flow by optical means, which provides a characteristic signature of the particle shape, hydro- dynamic friction, and size distribution. The effects of particle size and shape, size polydispersity, and shear rate on the temporal evolution of the flow-induced alignment is discussed in detail on the basis of numerical solutions of the Smoluchowski equation that describes the motion for the probability of the orientation of colloids in shear flow. It is shown that the combination of flow-dichroism experiments and the theoret- ical approach on the basis of the Smoluchowski equation provides a means to measure hydrodynamic aspect ratios and polydispersity, which for such small particles is not feasible with standard methods like light scattering. Flow dichroism will be useful not only for shape-anisotropic colloidal QD, but also for other nanoscale systems. | - |
dc.description.sponsorship | This project has received funding from the European Union within the Horizon 2020 project under the DiStruc Marie Sklodowska Curie innovative training network; grant agreement no. 641839. N.R. and C.C. would like to acknowledge support from the Research Foundation Flanders (FWO), grant no. G077916N. R.D., C.C., and Z.H. acknowledge financial support via the SBO-project QDOCCO within the SIM SoPPoM+ program of the Flemish Strategic Initiative for Materials (SIM). | - |
dc.language.iso | en | - |
dc.title | Tumbling of Quantum Dots: Rheo-optics | - |
dc.type | Journal Contribution | - |
dc.identifier.epage | 14642 | - |
dc.identifier.issue | 48 | - |
dc.identifier.spage | 14633 | - |
dc.identifier.volume | 34 | - |
local.bibliographicCitation.jcat | A1 | - |
dc.description.notes | Ripoll, M (reprint author), Forschungszentrum Julich, Inst Complex Syst, Theoret Soft Matter & Biophys, D-52425 Julich, Germany. m.ripoll@fz-juelich.de; naveen.reddy@uhasselt.be | - |
local.type.refereed | Refereed | - |
local.type.specified | Article | - |
dc.identifier.doi | 10.1021/acs.langmuir.8b02498 | - |
dc.identifier.isi | 000452693100019 | - |
item.accessRights | Restricted Access | - |
item.fullcitation | Li, Run; Ripoll, Marisol; REDDY, Naveen; Dhont, Jan; Dierick, Ruben; Hens, Zeger & Clasen, Christian (2018) Tumbling of Quantum Dots: Rheo-optics. In: Langmuir, 34 (48), pag. 14633-14642. | - |
item.contributor | Li, Run | - |
item.contributor | Ripoll, Marisol | - |
item.contributor | REDDY, Naveen | - |
item.contributor | Dhont, Jan | - |
item.contributor | Dierick, Ruben | - |
item.contributor | Hens, Zeger | - |
item.contributor | Clasen, Christian | - |
item.fulltext | With Fulltext | - |
crisitem.journal.issn | 0743-7463 | - |
Appears in Collections: | Research publications |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
2018-1-Langmuir.pdf Restricted Access | Peer-reviewed author version | 4.31 MB | Adobe PDF | View/Open Request a copy |
acs.langmuir.8b02498.pdf Restricted Access | Published version | 2.93 MB | Adobe PDF | View/Open Request a copy |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.