Liquid-liquid diffusion-assisted crystallization : a fast and versatile approach toward high quality mixed quantum dot-salt crystals
Here, a new, fast, and versatile method for the incorporation of colloidal quantum dots (QDs) into ionic matrices enabled by liquid–liquid diffusion is demonstrated. QDs bear a huge potential for numerous applications thanks to their unique chemical and physical properties. However, stability and pr...
| Main Authors: | , , , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
2015
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/100171 http://hdl.handle.net/10220/25733 |
| _version_ | 1811696374831382528 |
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| author | Adam, Marcus Wang, Zhiyu Dubavik, Aliaksei Stachowski, Gordon M. Meerbach, Christian Soran-Erdem, Zeliha Rengers, Christin Demir, Hilmi Volkan Gaponik, Nikolai Eychmüller, Alexander |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Adam, Marcus Wang, Zhiyu Dubavik, Aliaksei Stachowski, Gordon M. Meerbach, Christian Soran-Erdem, Zeliha Rengers, Christin Demir, Hilmi Volkan Gaponik, Nikolai Eychmüller, Alexander |
| author_sort | Adam, Marcus |
| collection | NTU |
| description | Here, a new, fast, and versatile method for the incorporation of colloidal quantum dots (QDs) into ionic matrices enabled by liquid–liquid diffusion is demonstrated. QDs bear a huge potential for numerous applications thanks to their unique chemical and physical properties. However, stability and processability are essential for their successful use in these applications. Incorporating QDs into a tight and chemically robust ionic matrix is one possible approach to increase both their stability and processability. With the proposed liquid–liquid diffusion-assisted crystallization (LLDC), substantially accelerated ionic crystallization of the QDs is shown, reducing the crystallization time needed by one order of magnitude. This fast process allows to incorporate even the less stable colloids including initially oil-based ligand-exchanged QDs into salt matrices. Furthermore, in a modified two-step approach, the seed-mediated LLDC provides the ability to incorporate oil-based QDs directly into ionic matrices without a prior phase transfer. Finally, making use of their processability, a proof-of-concept white light emitting diode with LLDC-based mixed QD-salt films as an excellent color-conversion layer is demonstrated. These findings suggest that the LLDC offers a robust, adaptable, and rapid technique for obtaining high quality QD-salts. |
| first_indexed | 2024-10-01T07:38:21Z |
| format | Journal Article |
| id | ntu-10356/100171 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:38:21Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | ntu-10356/1001712020-03-07T12:37:14Z Liquid-liquid diffusion-assisted crystallization : a fast and versatile approach toward high quality mixed quantum dot-salt crystals Adam, Marcus Wang, Zhiyu Dubavik, Aliaksei Stachowski, Gordon M. Meerbach, Christian Soran-Erdem, Zeliha Rengers, Christin Demir, Hilmi Volkan Gaponik, Nikolai Eychmüller, Alexander School of Electrical and Electronic Engineering School of Physical and Mathematical Sciences DRNTU::Engineering::Materials::Functional materials Here, a new, fast, and versatile method for the incorporation of colloidal quantum dots (QDs) into ionic matrices enabled by liquid–liquid diffusion is demonstrated. QDs bear a huge potential for numerous applications thanks to their unique chemical and physical properties. However, stability and processability are essential for their successful use in these applications. Incorporating QDs into a tight and chemically robust ionic matrix is one possible approach to increase both their stability and processability. With the proposed liquid–liquid diffusion-assisted crystallization (LLDC), substantially accelerated ionic crystallization of the QDs is shown, reducing the crystallization time needed by one order of magnitude. This fast process allows to incorporate even the less stable colloids including initially oil-based ligand-exchanged QDs into salt matrices. Furthermore, in a modified two-step approach, the seed-mediated LLDC provides the ability to incorporate oil-based QDs directly into ionic matrices without a prior phase transfer. Finally, making use of their processability, a proof-of-concept white light emitting diode with LLDC-based mixed QD-salt films as an excellent color-conversion layer is demonstrated. These findings suggest that the LLDC offers a robust, adaptable, and rapid technique for obtaining high quality QD-salts. 2015-06-02T06:11:48Z 2019-12-06T20:17:47Z 2015-06-02T06:11:48Z 2019-12-06T20:17:47Z 2015 2015 Journal Article Adam, M., Wang, Z., Dubavik, A., Stachowski, G. M., Meerbach, C., Soran-Erdem, Z., et al. (2015). Liquid-liquid diffusion-assisted crystallization : a fast and versatile approach toward high quality mixed quantum dot-salt crystals. Advanced functional materials, 25(18), 2638-2645. 1616-301X https://hdl.handle.net/10356/100171 http://hdl.handle.net/10220/25733 10.1002/adfm.201500552 en Advanced functional materials © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |
| spellingShingle | DRNTU::Engineering::Materials::Functional materials Adam, Marcus Wang, Zhiyu Dubavik, Aliaksei Stachowski, Gordon M. Meerbach, Christian Soran-Erdem, Zeliha Rengers, Christin Demir, Hilmi Volkan Gaponik, Nikolai Eychmüller, Alexander Liquid-liquid diffusion-assisted crystallization : a fast and versatile approach toward high quality mixed quantum dot-salt crystals |
| title | Liquid-liquid diffusion-assisted crystallization : a fast and versatile approach toward high quality mixed quantum dot-salt crystals |
| title_full | Liquid-liquid diffusion-assisted crystallization : a fast and versatile approach toward high quality mixed quantum dot-salt crystals |
| title_fullStr | Liquid-liquid diffusion-assisted crystallization : a fast and versatile approach toward high quality mixed quantum dot-salt crystals |
| title_full_unstemmed | Liquid-liquid diffusion-assisted crystallization : a fast and versatile approach toward high quality mixed quantum dot-salt crystals |
| title_short | Liquid-liquid diffusion-assisted crystallization : a fast and versatile approach toward high quality mixed quantum dot-salt crystals |
| title_sort | liquid liquid diffusion assisted crystallization a fast and versatile approach toward high quality mixed quantum dot salt crystals |
| topic | DRNTU::Engineering::Materials::Functional materials |
| url | https://hdl.handle.net/10356/100171 http://hdl.handle.net/10220/25733 |
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