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Stable CsPbBr3 Nanocrystals Embedded in SiO2 for Backlight Display Applications Stable CsPbBr3 Nanocrystals Embedded in SiO2 for Backlight Display Applications AITranslate

Xiaoting Liu; Wenya Chen; Jiapeng Yang; Xiaojuan Liang; Xiaoli Fang; Weidong Xiang
Wenzhou University; Wenzhou University; Wenzhou University; Wenzhou University;Wenzhou Center for Disease Control and Prevention, Wenzhou 325035; Wenzhou University
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Publisher: ACS
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Abstract AITranslate

As we all know, the various excellent properties of perovskite nanocrystals (NCs) have attracted attention in recent years. However, thei work stability is still the bottleneck to be solved urgently in their commercialization process. In this study, we encapsulated CsPbBr3 quantum dots in nano-SiO2 (inorganic) by a high-temperature sintering method and investigated the changes in optical stability before and after encapsulation. The SiO2 shell can effectively suppress anion exchange and photodegradation, which greatly improves the photothermal stability of shell NCs. Preparation of composite films by mixing CsPbBr3–SiO2 (inorganic) and polymer material PMMA (organic) by a solvent solution method can further enhance its stability. Meanwhile, the backlight display device realized the practical application of CsPbBr3–SiO2/CsPbBr1.2I1.8@PMMA with a wide color gamut (112% of the NTSC, 84% of the Rec. 2020). This is a very significant step to open up the awkward situation of the practical application of perovskite NC materials in backlight displays.

KeyWords AITranslate

CsPbBr3−SiO2 dual encapsulation optical stability wide color gamut backlight displays
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Basic Information:

DOI：https://doi.org/10.1021/acsaelm.3c00128

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Citation Information:

As we all know, the various excellent properties of perovskite nanocrystals (NCs) have attracted attention in recent years. However, thei work stability is still the bottleneck to be solved urgently in their commercialization process. In this study, we encapsulated CsPbBr3 quantum dots in nano-SiO2 (inorganic) by a high-temperature sintering method and investigated the changes in optical stability before and after encapsulation. The SiO2 shell can effectively suppress anion exchange and photodegradation, which greatly improves the photothermal stability of shell NCs. Preparation of composite films by mixing CsPbBr3–SiO2 (inorganic) and polymer material PMMA (organic) by a solvent solution method can further enhance its stability. Meanwhile, the backlight display device realized the practical application of CsPbBr3–SiO2/CsPbBr1.2I1.8@PMMA with a wide color gamut (112% of the NTSC, 84% of the Rec. 2020). This is a very significant step to open up the awkward situation of the practical application of perovskite NC materials in backlight displays.

quote

GB/T 7714-2015 [1] Xiaoting Liu, Wenya Chen, Jiapeng Yang, et al. ACS Applied Electronic Materials, 2023(5). DOI:10.1021/acsaelm.3c00128.
MLA [1] Xiaoting Liu, et al., ACS Applied Electronic Materials, no. 5, 2023, https://doi.org/10.1021/acsaelm.3c00128.
APA [1] Xiaoting Liu, Wenya Chen, Jiapeng Yang, Xiaojuan Liang, Xiaoli Fang, & Weidong Xiang. (2023). ACS Applied Electronic Materials(5). https://doi.org/10.1021/acsaelm.3c00128
IEEE [1] Xiaoting Liu, Wenya Chen, Jiapeng Yang, Xiaojuan Liang, Xiaoli Fang, and Weidong Xiang, ACS Applied Electronic Materials, no. 5, 2023, doi: 10.1021/acsaelm.3c00128. keywords: {CsPbBr3−SiO2 dual encapsulation optical stability wide color gamut backlight displays}