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Facile Synthesis and Optical Properties of CsPbX3/ZIF-8 Composites for Wide-Color-Gamut Display

机译:用于宽色域显示器的CsPbX3 / ZIF-8复合材料的简便合成和光学性质

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摘要

All-inorganic CsPbX3 (X = Cl, Br, and I) perovskite quantum dots (QDs), an emerging type of luminescent materials, have drawn extensive attention in recent years. However, the amelioration of their stability is becoming a critical issue. Herein, we present a facile and efficient approach to prepare novel perovskite QDs/metal–organic frameworks (CsPbX3/ZIF-8) composites under ambient-atmospheric conditions. The obtained composites exhibit better properties including high photoluminescence (PL) quantum yields (QYs) (41.2% for green and 34.8% for red), narrow-band emission (20 nm for green and 31 nm for red), and enhanced stability in comparison to bare QDs. Furthermore, their application in a remote-type white-light-emitting device was explored and a wide color gamut (~137% of the National Television System Committee standard) was achieved, verifying that these novel luminescent composites have great prospect in backlight display application.
机译:全无机CsPbX3(X = Cl,Br和I)钙钛矿量子点(QDs)是一种新兴的发光材料,近年来受到了广泛的关注。然而,改善其稳定性已成为关键问题。在本文中,我们提出了一种在环境大气条件下制备新型钙钛矿量子点/金属有机骨架(CsPbX3 / ZIF-8)复合材料的简便有效的方法。所获得的复合材料具有更好的性能,包括高的光致发光(PL)量子产率(QYs)(绿色为41.2%,红色为34.8%),窄带发射(绿色为20 nm,红色为31 nm),并且稳定性更高裸露的QD。此外,还探索了它们在远程型白光发射装置中的应用,并实现了宽色域(约占国家电视系统委员会标准的137%),从而证明了这些新型发光复合材料在背光显示应用中具有广阔的前景。 。

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