Achieving exceptionally high luminescence quantum efficiency by immobilizing an AIE molecular chromophore into a metal–organic framework

Abstract

We design a new yellow phosphor with high quantum yield by immobilizing a preselected chromophore into a rigid framework. Coating a blue light-emitting diode (LED) with this compound readily generates white light with high luminous efficacy. The new yellow phosphor demonstrates great potential for use in phosphor-converted white LEDs.

Effect of temperature on hydrogen and carbon dioxide adsorption hysteresis in an ultramicroporous MOF

“…Microporous metal organic framework (MOF) materials have become a topic of intense interest over the past decade [1,2] due to their enormous potential for applications in sensing and detection [3][4][5][6][7][8][9], magnetism [10,11], catalysis [12][13][14], gas storage and separation [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30], chiral recognition [31] and LEDs [32,33]. Among numerous useful features of microporous MOFs, gas storage and separation are by far the most intensively explored properties because of their broadly tuneable surface area, pore volume, pore size, and shape [34].…”

Luminescent Porous Polymers Based on Aggregation‐Induced Mechanism: Design, Synthesis and Functions

“…A similar strategy for enhancing the fluorescence quantum efficiency has been demonstrated by immobilization of 10 into the tetrahedral‐coordinated porous 3D MOF, i.e., Zn 2 (ETTC)· x DMA ( 12 , Figure , BET = 833 m 2 g −1 , DMA = N , N ‐dimethylacetamide) . The desolvated 12 exhibited excellent fluorescence behavior and the quantum yield was as high as 96.5%.…”

“…Metal organic frameworks (MOFs) are another class of crystalline materials composed of metal nodes (secondary building units; SBUs) and organic linkers to form highly porous structures with a diverse functionality, such as catalysis, proton conductivity, optoelectronic devices, sensors, and gas separation and storage . The diversity of organic linkers, metal species and coordination patterns leads to the generation of more than twenty thousand MOFs .…”

Syntheses, structures and tunable luminescence of lanthanide metal-organic frameworks based on azole-containing carboxylic acid ligand

“…To date, several examples of white light emitting MOFs have been reported [42][43][44][45][46][47][48][49]. These MOF materials can incorporate lanthanide dopants (for example, Eu 3 þ , Tb 3 þ , Dy 3 þ ) into the host framework and lead to white light emission when excited at given wavelengths [42][43][44][45][46][47][48][49].…”

“…These MOF materials can incorporate lanthanide dopants (for example, Eu 3 þ , Tb 3 þ , Dy 3 þ ) into the host framework and lead to white light emission when excited at given wavelengths [42][43][44][45][46][47][48][49]. Lanthanides metal-organic frameworks (LnMOFs), by comparison, are excellent candidates for designing light emitting materials because of their high photoluminescence efficiency, narrow bandwidth, and wide range of lifetimes [50].…”