Abstract
We report a simple and low-cost at room temperature and atmospheric pressure synthetic method for highly stable and photoluminescence (PL) Mn2+-doped CsPb(Br/Cl)3 nanocrystal (NCs) thin films with high Mn-to-Pb feed ratio. The XRD, EDS, and XPS results confirm that Mn ions can be significantly doped in host CsPb(Br/Cl)3 NCs. PL spectra show multi-color luminescence, which is related to host exciton and Mn2+ dopant state emission, respectively. In addition, the optical properties of Mn2+-doped NCs present the good thermal stability even after 35 days. Furthermore, light-emitting diodes were constructed by employing as-prepared Mn2+-doped NCs (Mn-to-Pb feed ratio of 5:1) and CsPbBr3 with the commercial UV chip, demonstrating that Mn2+-doped NCs are applicable to the color converters for the potential field of lighting and display.
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Acknowledgements
This work was supported by Research start-up project of Shanghai Institute of Technology (No. YJ2018-9). The authors declare that there is no conflict of interest regarding the publication of this article.
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Wang, F., Dong, H., Kong, J. et al. Room-temperature synthesis of Mn2+-doped CsPb(Br/Cl)3 nanocrystal thin films with high Mn substitution ratio. J Mater Sci: Mater Electron 32, 27647–27655 (2021). https://doi.org/10.1007/s10854-021-07141-5
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DOI: https://doi.org/10.1007/s10854-021-07141-5