Phase transition of metal-organic frameworks for regulating the fluorescence properties of dyes

Encapsulating dye molecules into metal-organic frameworks (MOFs) with high loadings and tunable photophysical properties is promising for future applications in opto-electronic displays, but it is challenging to match the channel size of the MOFs with the dimensions of the dyes. Here, we report a pr...

Full description

Saved in:
Bibliographic Details
Published in:New journal of chemistry 2022-10, Vol.46 (42), p.256-26
Main Authors: Qin, Ziyue, Ren, Zhen, Chen, Cheng, Liu, Liwei, Ji, Ning, Zhao, Yanhua, Zha, Baoli, Fu, Yu, Shen, Yu, Huo, Fengwei
Format: Article
Language:English
Subjects:
Aging (artificial)
Displays
Dyes
Fluorescence
Metal-organic frameworks
Optoelectronics
Phase transitions
Rhodamine
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Encapsulating dye molecules into metal-organic frameworks (MOFs) with high loadings and tunable photophysical properties is promising for future applications in opto-electronic displays, but it is challenging to match the channel size of the MOFs with the dimensions of the dyes. Here, we report a pressure-induced stimulated-aging (PISA) strategy that enables a large number of dyes to be well dispersed and confined within MOFs (denoted as dyes@MOFs). The fluorescence properties of these dyes can be regulated through the MOF microenvironment. Specifically, the fluorescence lifetime and quantum yield of rhodamine B (RhB)@ZIF-8 are 5-6 times higher than those of solid RhB. Moreover, the dyes@MOFs composites are fabricated into patterns and exhibit application prospects for multicolor displays, information encryption and storage. The phase transition of MOFs through a pressure-induced stimulated-aging strategy for the preparation of dyes@ZIF-8 with high loadings is reported.
ISSN:1144-0546
1369-9261
DOI:10.1039/d2nj04243f