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Metal-organic frameworks for visible light absorption via anion substitution

Authors
Choi, JH (Choi, Jung Hoon)Jeon, HJ (Jeon, Hyung Joon)Choi, KM (Choi, Kyung Min)Kang, JK (Kang, Jeung Ku)
Issue Date
May-2012
Publisher
ROYAL SOC CHEMISTRY
Citation
JOURNAL OF MATERIALS CHEMISTRY, v.22, no.20, pp.10144 - 10147
Journal Title
JOURNAL OF MATERIALS CHEMISTRY
Volume
22
Number
20
Start Page
10144
End Page
10147
URI
https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/147667
DOI
10.1039/c2jm16245h
ISSN
0959-9428
Abstract
We report that the band gap of metal-organic frameworks (MOFs) could be tuned to absorb visible light via anion substitution. First of all, when an oxygen anion in the metal oxide core of IRMOF-1 is substituted with sulphur anions as Zn4S or selenium anions as Zn4Se to form IRMOF-1-S and IRMOF-1-Se, respectively, they result in density-of-states and molecular orbitals for the band gap that can utilize visible light through shifting of the Fermi level due to their electron-rich properties. This implies that the tailored band gap could provide a new route to allow the series of IRMOFs and other MOFs to be used for visible light absorption.
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공과대학 (화공생명공학부)
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