Encapsulation of aggregation-caused quenching dye in metal-organic framework as emissive layer of organic light-emitting diodes

Metal–organic framework-based self-healing hydrogel fiber random lasers

“…25 The large size ensures that their porous confinement can minimize the severe ACQ effect of organic dyes by weakening the intermolecular interactions and intramolecular rotations. 26,27 Also, it is easier to use surfactants, to further control the size and homogeneity of nanoscale ZIF-8 crystals. [28][29][30][31] We synthesized ZIF-8 NPs with regular morphology and high yield using CTAB as the surfactant, and the samples' morphology characterization confirmed that our synthesis was practical.…”

Nanoporous Organic Frameworks as Light-Emitting Diodes: A Review

“…91 Despite the lack of luminescence of the pristine MOF [Al 3 O(H 2 O) 2 (BTC) 2 ]•nH 2 O and the ACQ properties of C6, the incorporation and dispersion of C6 molecules within the MOF can generate green emission at 505 nm with a PLQY of 21.4% when photoexcited at 415 nm (Figure 9b,c). 91 The optimized efficiency of the device is accomplished by varying the thickness of the MOF-based active layer. 91 Douhal and co-workers studied the efficiency of Zr-NDC, a MOF formed of zirconium(IV) metal ions and 2,6-NDC, in the active layer of LEDs upon its incorporation into a polymer matrix and the encapsulation of dyes.…”

“…91 The optimized efficiency of the device is accomplished by varying the thickness of the MOF-based active layer. 91 Douhal and co-workers studied the efficiency of Zr-NDC, a MOF formed of zirconium(IV) metal ions and 2,6-NDC, in the active layer of LEDs upon its incorporation into a polymer matrix and the encapsulation of dyes. 92 First, the conductivity of the MOF is confirmed upon a comparison of its chargetransfer ability when integrated either in the highly conductive poly(vinylcarbazole) (PVK) or in the nonconductive PS.…”

Tetraphenylnaphthosiline (TPNS): a potential building block for deep-blue emitter featured aggregation-induced blue-shifted emission

“…12–15 In many organic luminescent materials, the ubiquitous phenomenon of aggregation-caused quenching (ACQ) has become a barrier in the technological breakthrough in non-doped OLEDs, 16 and some efficiency strategies based on doping technology have been adopted, which would increase manufacturing costs and decrease device stability. 17,18 Recently, the concept of “aggregation-induced emission” (AIE) has been tipped as potentially the most effective approach for overcoming the ACQ problem comprehensively, and their bright emission returns to the aggregated or film state than their no or weakened emissive nature in the unimolecular state. 19,20 Some materials with AIE even exhibit very different emission behaviors from their dispersion state to their aggregation state.…”