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In Situ Growth of Ultrapure Green‐Emitting FAPbBr3‐PVDF Films via a Synergetic Dual‐Additive Strategy for Wide Color Gamut Backlit Display.
- Source :
- Advanced Materials Technologies; Aug2022, Vol. 7 Issue 8, p1-9, 9p
- Publication Year :
- 2022
-
Abstract
- Elaborate engineering of emitting wavelength of green down‐converter in the spectral range of ≈525–535 nm with narrow full‐width at half‐maximum (fwhm < 25 nm) is an essential prerequisite for faithfully reproducing colors in the quantum dot (QD)‐based backlit display. Herein, different from the previous complex synthesis for green films, FAPbBr3 perovskite QDs films are fabricated by a dual‐additive assisted in situ growth strategy. Both C6H5CH2CH2NH3+ and 1,4,7,10,13,16‐hexaoxacyclooctadecane additives are introduced to synergistically tune green emitting (≈525–535 nm) with the narrowest fwhm down to 21 nm and the highest photoluminescence quantum yield (PLQY) up to 99%. Improved nanocomposite film with excellent long‐term stability is used to construct a prototype liquid crystal display (LCD) with a wide color gamut (118% National Television System Committee and 88% Recommendation BT 2020), a high saturation, and a remarkable color rendition. The performance is superior to that of the commercial white‐LED‐based LCD, showing a great potential of the present green film for high‐definition display application in the future. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 2365709X
- Volume :
- 7
- Issue :
- 8
- Database :
- Complementary Index
- Journal :
- Advanced Materials Technologies
- Publication Type :
- Academic Journal
- Accession number :
- 158480604
- Full Text :
- https://doi.org/10.1002/admt.202200100