Quenching of photoluminescence in a Zn-MOF sensor by nitroaromatic molecules
Journal Article
·
· Journal of Materials Chemistry C
- Wake Forest Univ., Winston-Salem, NC (United States). Dept. of Physics. Center for Functional Materials; DOE/OSTI
- Univ. of Texas at Dallas, Richardson, TX (United States). Dept. of Materials Science and Engineering
- Rutgers Univ., Piscataway, NJ (United States). Dept. of Chemistry and Chemical Biology
- North Dakota State Univ., Fargo, ND (United States). Dept. of Chemistry and Biochemistry
- Wake Forest Univ., Winston-Salem, NC (United States). Dept. of Physics. Center for Functional Materials
We uncover the exact mechanisms that lead to a quenching of the photoluminescence in a Zn-based metal organic framework (MOF) material upon nitroaromatic molecule adsorption. We present evidence based on ab initio simulations, coupled with in situ IR spectroscopy and photoluminescence measurements, showing that quenching occurs as the result of a shift of the lowest unoccupied orbital from the MOF host to the guest molecule. Our results provide a mechanistic understanding of quenching of photoluminescence in MOFs and are of importance for chemical sensing applications, where they aid the design of novel MOFs with increased sensing selectivity.
- Research Organization:
- Univ. of Texas at Dallas, Richardson, TX (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- FG02-08ER46491
- OSTI ID:
- 1609991
- Journal Information:
- Journal of Materials Chemistry C, Journal Name: Journal of Materials Chemistry C Journal Issue: 9 Vol. 7; ISSN 2050-7526
- Publisher:
- Royal Society of ChemistryCopyright Statement
- Country of Publication:
- United States
- Language:
- English
3D lanthanide-coordination frameworks constructed by a ternary mixed-ligand: crystal structure, luminescence and luminescence sensing
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journal | January 2020 |
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