scholarly journals Dual‐Guest Functionalized Zeolitic Imidazolate Framework‐8 for 3D Printing White Light‐Emitting Composites

2020 ◽  
Vol 8 (8) ◽  
pp. 1901912 ◽  
Author(s):  
Abhijeet K. Chaudhari ◽  
Jin‐Chong Tan
Molecules ◽  
2021 ◽  
Vol 26 (24) ◽  
pp. 7583
Author(s):  
Tao Xiong ◽  
Yang Zhang ◽  
Nader Amin ◽  
Jin-Chong Tan

A series of rhodamine B (RhB) encapsulated zeolitic imidazolate framework-8 (RhB@ZIF-8) composite nanomaterials with different concentrations of guest loadings have been synthesized and characterized in order to investigate their applicability to solid-state white-light-emitting diodes (WLEDs). The nanoconfinement of the rhodamine B dye (guest) in the sodalite cages of ZIF-8 (host) is supported by fluorescence spectroscopic and photodynamic lifetime data. The quantum yield (QY) of the luminescent RhB@ZIF-8 material approaches unity when the guest loading is controlled at a low level: 1 RhB guest per ~7250 cages. We show that the hybrid (luminescent guest) LG@MOF material, obtained by mechanically mixing a suitably high-QY RhB@ZIF-8 red emitter with a green-emitting fluorescein@ZIF-8 “phosphor” with a comparably high QY, could yield a stable, intensity tunable, near-white light emission under specific test conditions described. Our results demonstrate a novel LG@MOF composite system exhibiting a good combination of photophysical properties and photostability, for potential applications in WLEDs, photoswitches, bioimaging and fluorescent sensors.


2017 ◽  
Vol 53 (11) ◽  
pp. 1801-1804 ◽  
Author(s):  
Xiaogang Yang ◽  
Dongpeng Yan

Zeolitic imidazolate framework-8 can directly exhibit unexpected white-light emission and near-infrared phosphorescence, due to the host–guest interaction and the alternation of electron-density distribution, as confirmed by both experimental and computational studies.


2020 ◽  
Vol 8 (22) ◽  
pp. 2001037 ◽  
Author(s):  
Dongjie Liu ◽  
Xiaohan Yun ◽  
Guogang Li ◽  
Peipei Dang ◽  
Maxim S. Molokeev ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document