Optochemically Responsive 2D Nanosheets of a 3D Metal–Organic Framework Material |
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| Authors: | Abhijeet K. Chaudhari Ha Jin Kim Intaek Han Jin‐Chong Tan |
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| Affiliation: | 1. Multifunctional Materials & Composites (MMC) Laboratory, Department of Engineering Science, University of Oxford, Oxford, UK;2. Materials Research Center, Samsung Advanced Institute of Technology (SAIT), Samsung Electronics Co. Ltd., Suwon, Republic of Korea |
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| Abstract: | Outstanding functional tunability underpinning metal–organic framework (MOF) confers a versatile platform to contrive next‐generation chemical sensors, optoelectronics, energy harvesters, and converters. A rare exemplar of a porous 2D nanosheet material constructed from an extended 3D MOF structure is reported. A rapid supramolecular self‐assembly methodology at ambient conditions to synthesize readily exfoliatable MOF nanosheets, functionalized in situ by adopting the guest@MOF (host) strategy, is developed. Nanoscale confinement of light‐emitting molecules (as functional guest) inside the MOF pores generates unusual combination of optical, electronic, and chemical properties, arising from the strong host–guest coupling effects. Highly promising photonics‐based chemical sensing opened up by the new guest@MOF composite systems is shown. By harnessing host–guest optochemical interactions of functionalized MOF nanosheets, detection of an extensive range of volatile organic compounds and small molecules important for many practical applications has been accomplished. |
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| Keywords: | host– guest interactions hybrid materials metal– organic framework (MOF) nanosheets photochemical sensors |
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