Development of Quantum Dot (QD) Based Color Converters for Multicolor Display.
Journal article
Sajjad, T., Bansal, A.K., Antolini, F., Preis, E., Stroea, L., Toffanin, S., Muccini, M., Ortolani, L., Migliori, A., Allard, S., Scherf, U. and Samuel, I. (2021). Development of Quantum Dot (QD) Based Color Converters for Multicolor Display. Nanomaterials. 11 (5). https://doi.org/nano11051089
| Authors | Sajjad, T., Bansal, A.K., Antolini, F., Preis, E., Stroea, L., Toffanin, S., Muccini, M., Ortolani, L., Migliori, A., Allard, S., Scherf, U. and Samuel, I. |
|---|---|
| Abstract | Many displays involve the use of color conversion layers. QDs are attractive candidates as color converters because of their easy processability, tuneable optical properties, high photoluminescence quantum yield, and good stability. Here, we show that emissive QDs with narrow emission range can be made in-situ in a polymer matrix, with properties useful for color conversion. This was achieved by blending the blue-emitting pyridine based polymer with a cadmium selenide precursor and baking their films at different temperatures. To achieve efficient color conversion, blend ratio and baking temperature/time were varied. We found that thermal decomposition of the precursor leads to highly emissive QDs whose final size and emission can be controlled using baking temperature/time. The formation of the QDs inside the polymer matrix was confirmed through morphological studies using atomic force microscopy (AFM) and transmission electron microscopy (TEM). Hence, our approach provides a cost-effective route to making highly emissive color converters for multi-color displays. |
| Keywords | energy transfer; nanocomposite; nanocrystal; narrow emission; thermal annealing |
| Year | 2021 |
| Journal | Nanomaterials |
| Journal citation | 11 (5) |
| Publisher | MDPI |
| ISSN | 2079-4991 |
| Digital Object Identifier (DOI) | https://doi.org/nano11051089 |
| https://doi.org/10.3390/nano11051089 | |
| Funder/Client | European Commission |
| Publication dates | |
| Online | 23 Apr 2021 |
| Publication process dates | |
| Accepted | 15 Apr 2021 |
| Deposited | 17 May 2021 |
| Publisher's version | License File Access Level Open |
| License | https://creativecommons.org/licenses/by/4.0/ |
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