Blue CdSe/CdS core/crown nanoplatelet light-emitting diodes obtained via a design-of-experiments approach
- Author
- Matilde Cirignano, Hossein Roshan, Emanuele Farinini, Alessio Di Giacomo, Sergio Fiorito, Davide Piccinotti, Sirous Khabbazabkenar, Francesco Di Stasio and Iwan Moreels (UGent)
- Organization
- Project
- Abstract
- Obtaining efficient blue emission from CdSe nanoplatelets (NPLs) remains challenging due to charge trapping and sub-bandgap emission. Thanks to a design-of-experiments (DoE) approach, we significantly improved the NPL synthesis, obtaining precise control over the lateral aspect ratio (length/width). We raised the photoluminescence quantum efficiency up to 66% after growth of a CdS crown, with complete elimination of trap-state emission. Using these 3.5 monolayer, blue-emitting CdSe/CdS core/crown NPLs (lambda = 460 nm), we fabricated light-emitting diodes (LEDs) with narrowband (16 nm) blue electroluminescence, an external quantum efficiency of 1.3% and low turn-on voltage of 2.9 V after DoE optimization. Our findings show that NPLs are a promising system to obtain LEDs that emit a saturated blue color.
- Keywords
- SEMICONDUCTOR NANOCRYSTALS, EFFICIENT, SURFACE, CORE, GROWTH, NARROW, ROD, RED
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Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-01JJ44GTN27F9YYH964EK0SVMS
- MLA
- Cirignano, Matilde, et al. “Blue CdSe/CdS Core/Crown Nanoplatelet Light-Emitting Diodes Obtained via a Design-of-Experiments Approach.” NANOSCALE, vol. 17, no. 1, 2025, pp. 304–13, doi:10.1039/d4nr03461a.
- APA
- Cirignano, M., Roshan, H., Farinini, E., Di Giacomo, A., Fiorito, S., Piccinotti, D., … Moreels, I. (2025). Blue CdSe/CdS core/crown nanoplatelet light-emitting diodes obtained via a design-of-experiments approach. NANOSCALE, 17(1), 304–313. https://doi.org/10.1039/d4nr03461a
- Chicago author-date
- Cirignano, Matilde, Hossein Roshan, Emanuele Farinini, Alessio Di Giacomo, Sergio Fiorito, Davide Piccinotti, Sirous Khabbazabkenar, Francesco Di Stasio, and Iwan Moreels. 2025. “Blue CdSe/CdS Core/Crown Nanoplatelet Light-Emitting Diodes Obtained via a Design-of-Experiments Approach.” NANOSCALE 17 (1): 304–13. https://doi.org/10.1039/d4nr03461a.
- Chicago author-date (all authors)
- Cirignano, Matilde, Hossein Roshan, Emanuele Farinini, Alessio Di Giacomo, Sergio Fiorito, Davide Piccinotti, Sirous Khabbazabkenar, Francesco Di Stasio, and Iwan Moreels. 2025. “Blue CdSe/CdS Core/Crown Nanoplatelet Light-Emitting Diodes Obtained via a Design-of-Experiments Approach.” NANOSCALE 17 (1): 304–313. doi:10.1039/d4nr03461a.
- Vancouver
- 1.Cirignano M, Roshan H, Farinini E, Di Giacomo A, Fiorito S, Piccinotti D, et al. Blue CdSe/CdS core/crown nanoplatelet light-emitting diodes obtained via a design-of-experiments approach. NANOSCALE. 2025;17(1):304–13.
- IEEE
- [1]M. Cirignano et al., “Blue CdSe/CdS core/crown nanoplatelet light-emitting diodes obtained via a design-of-experiments approach,” NANOSCALE, vol. 17, no. 1, pp. 304–313, 2025.
@article{01JJ44GTN27F9YYH964EK0SVMS,
abstract = {{Obtaining efficient blue emission from CdSe nanoplatelets (NPLs) remains challenging due to charge trapping and sub-bandgap emission. Thanks to a design-of-experiments (DoE) approach, we significantly improved the NPL synthesis, obtaining precise control over the lateral aspect ratio (length/width). We raised the photoluminescence quantum efficiency up to 66% after growth of a CdS crown, with complete elimination of trap-state emission. Using these 3.5 monolayer, blue-emitting CdSe/CdS core/crown NPLs (lambda = 460 nm), we fabricated light-emitting diodes (LEDs) with narrowband (16 nm) blue electroluminescence, an external quantum efficiency of 1.3% and low turn-on voltage of 2.9 V after DoE optimization. Our findings show that NPLs are a promising system to obtain LEDs that emit a saturated blue color.}},
author = {{Cirignano, Matilde and Roshan, Hossein and Farinini, Emanuele and Di Giacomo, Alessio and Fiorito, Sergio and Piccinotti, Davide and Khabbazabkenar, Sirous and Di Stasio, Francesco and Moreels, Iwan}},
issn = {{2040-3364}},
journal = {{NANOSCALE}},
keywords = {{SEMICONDUCTOR NANOCRYSTALS,EFFICIENT,SURFACE,CORE,GROWTH,NARROW,ROD,RED}},
language = {{eng}},
number = {{1}},
pages = {{304--313}},
title = {{Blue CdSe/CdS core/crown nanoplatelet light-emitting diodes obtained via a design-of-experiments approach}},
url = {{http://doi.org/10.1039/d4nr03461a}},
volume = {{17}},
year = {{2025}},
}
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