Tailored Broad-Spectrum Emission in Hybrid Aggregation Induced Emission (AIE)-MOFs: Boosting White Light Efficiency in Electrospun Janus Microfibers

10 July 2023, Version 1
This content is a preprint and has not undergone peer review at the time of posting.


Advances in energy-efficient lighting and display technologies demand innovative materials with tailored broad-spectrum emission properties. Hybrid aggregation-induced emission metal-organic frameworks (AIE-MOFs) offer a promising avenue, combining unique characteristics of organic and inorganic components to yield enhanced lumi-nescence efficiency and robust material stability. Our study introduces a spectrum of D (donor)-A (acceptor) type AIE-active ligands into MOFs, enabling tunable emission across the visible spectrum, thus underscoring the versatility of these hybridized MOF materials. We further harness the emission properties of AIE-MOFs by integrating them into polymer matrices, resulting in high-performance electrospun fibers with tunable emission. A significant achievement involves the fabrication of Janus-type white light-emitting AIE-MOF fiber composites via side-by-side electrospinning, accomplishing a high quantum yield of 58%, which doubled the performance of homogeneous fibers. Complement-ing our experimental findings, we employ micro-Raman and nano-FTIR as local spectroscopic probes, affording a deeper understanding of the material properties and the mechanisms contributing to enhanced light emission. In our understanding, this study presents an unconventional implementation of hybrid AIE-MOFs in Janus-type structures for white light emission. It significantly improves the efficiency of white light sources in optoelectronics, charting a promising direction for future research in the emergent AIE-MOF field.


Janus Microfibers
White Light Emission
metal-organic frameworks
quantum yield
aggregation-induced emission

Supplementary materials

Supporting Information
Experimental Section, synthesis method, spectroscopy data


Comments are not moderated before they are posted, but they can be removed by the site moderators if they are found to be in contravention of our Commenting Policy [opens in a new tab] - please read this policy before you post. Comments should be used for scholarly discussion of the content in question. You can find more information about how to use the commenting feature here [opens in a new tab] .
This site is protected by reCAPTCHA and the Google Privacy Policy [opens in a new tab] and Terms of Service [opens in a new tab] apply.