Hu H, Levchuk I, Kalkowski F, Elia J, Osvet A, Brabec C (2023)
Publication Type: Journal article
Publication year: 2023
Publisher: ACS Publications
Book Volume: 8
Pages Range: 4380--4385
DOI: 10.1021/acsenergylett.3c01812
Lead halide perovskite nanocrystals (NCs) are the most promising candidates for displays satisfying the Rec. 2020 UHDTV color standard. However, moisture sensitivity currently limits light-emitting applications requiring color stability and purity. In this study, we propose a large-area FAPbBr3-based quantum dot brightness enhancing film (QDEF) strategy developed in our group five years ago. The combination of a polymeric binder tailored to the ligands optimized perovskite NCs for light conversion and demonstrates QDEF applications with 91% coverage of Rec. 2020 standard in tablet displays, using polyhedral oligomeric silsesquioxane-capped FAPbBr3 as the green emitter and K2SiF6: Mn4+ (KSF) as a red emitter. Remarkably, our films operating in displays showed 4 year stability without lead leakage. Even without barrier protection, the unpackaged QDEF maintained 55% of its initial performance. This highlights the importance of a dual stabilization strategy for extending operational and shelf lifetimes of advanced functional perovskite composites.
APA:
Hu, H., Levchuk, I., Kalkowski, F., Elia, J., Osvet, A., & Brabec, C. (2023). Engineering Stable Perovskite Quantum Dot Films for High Color Purity Display Applications. ACS Energy Letters, 8, 4380--4385. https://doi.org/10.1021/acsenergylett.3c01812
MLA:
Hu, Huiying, et al. "Engineering Stable Perovskite Quantum Dot Films for High Color Purity Display Applications." ACS Energy Letters 8 (2023): 4380--4385.
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