Journal
SMALL
Volume 13, Issue 17, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.201604035
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Funding
- Chinese Academy of Sciences [XDB20000000]
- NSFC [21425102, 21601189, 21473202, 21521061]
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This study reports an oriented and homogenous cobalt-metalloporphyrin network (PIZA-1) thin film prepared by liquid phase epitaxial (LPE) method. The thickness of the obtained thin films can be well controlled, and their photocurrent properties can also be tuned by LPE cycles or the introduction of conductive guest molecules (tetracyanoquinodimethane and C-60) into the PIZA-1 pores. The study of quartz crystal microbalance adsorption confirms' that the PIZA-1 thin film with [110]-orientation presents much higher selectivity of benzene over toluene and p-xylene than that of the PIZA-1 powder with mixed orientations. These results reveal that the selective adsorption of volatile organic compounds highly depends on the growth orientations of porphyrin-based metal-organic framework thin films. Furthermore, the work will provide a new perspective for developing important semiconductive sensing materials with improved selectivity of guest compounds.
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