Tunable fluorescein-encapsulated zeolitic imidazolate framework-8 nanoparticles for solid-state lighting
A series of fluorescein-encapsulated zeolitic imidazolate framework-8 (fluorescein@ZIF-8) luminescent nanoparticles with a scalable guest loading has been fabricated and characterized. The successful encapsulation of the organic dye (fluorescein) is supported by both experimental evidence and theore...
| Main Authors: | , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
American Chemical Society
2021
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| _version_ | 1826308442798686208 |
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| author | Xiong, T Zhang, Y Donà, L Gutiérrez, M Möslein, AF Babal, AS Amin, N Civalleri, B Tan, J-C |
| author_facet | Xiong, T Zhang, Y Donà, L Gutiérrez, M Möslein, AF Babal, AS Amin, N Civalleri, B Tan, J-C |
| author_sort | Xiong, T |
| collection | OXFORD |
| description | A series of fluorescein-encapsulated zeolitic imidazolate framework-8 (fluorescein@ZIF-8) luminescent nanoparticles with a scalable guest loading has been fabricated and characterized. The successful encapsulation of the organic dye (fluorescein) is supported by both experimental evidence and theoretical simulations. The measured optical band gap is found to be comparable with the computed values of a hypothetical guest–host system. Isolated monomers and aggregate species of fluorescein confined in ZIF-8 nanocrystals have been systematically investigated through fluorescence lifetime spectroscopy. The quantum yield (QY) of the obtained solid-state materials is particularly high (QY ∼ 98%), especially when the concentration of the fluorescein guest is low. Combining a blue LED chip and a thin photoactive film of fluorescein@ZIF-8, we demonstrate a device with good optical tunability for multicolor and white light emissions. Additionally, we show that the fluorescein@ZIF-8 nanoparticles exhibit an improved photostability due to the shielding effect conferred by the nanoconfinement of the host framework, making them promising candidates for practical applications such as solid-state lighting, photonics, and optical communications. |
| first_indexed | 2024-03-07T07:19:34Z |
| format | Journal article |
| id | oxford-uuid:410aca11-8f51-41c4-ac6d-a0cd9dedb733 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T07:19:34Z |
| publishDate | 2021 |
| publisher | American Chemical Society |
| record_format | dspace |
| spelling | oxford-uuid:410aca11-8f51-41c4-ac6d-a0cd9dedb7332022-09-22T10:12:03ZTunable fluorescein-encapsulated zeolitic imidazolate framework-8 nanoparticles for solid-state lightingJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:410aca11-8f51-41c4-ac6d-a0cd9dedb733EnglishSymplectic ElementsAmerican Chemical Society2021Xiong, TZhang, YDonà, LGutiérrez, MMöslein, AFBabal, ASAmin, NCivalleri, BTan, J-CA series of fluorescein-encapsulated zeolitic imidazolate framework-8 (fluorescein@ZIF-8) luminescent nanoparticles with a scalable guest loading has been fabricated and characterized. The successful encapsulation of the organic dye (fluorescein) is supported by both experimental evidence and theoretical simulations. The measured optical band gap is found to be comparable with the computed values of a hypothetical guest–host system. Isolated monomers and aggregate species of fluorescein confined in ZIF-8 nanocrystals have been systematically investigated through fluorescence lifetime spectroscopy. The quantum yield (QY) of the obtained solid-state materials is particularly high (QY ∼ 98%), especially when the concentration of the fluorescein guest is low. Combining a blue LED chip and a thin photoactive film of fluorescein@ZIF-8, we demonstrate a device with good optical tunability for multicolor and white light emissions. Additionally, we show that the fluorescein@ZIF-8 nanoparticles exhibit an improved photostability due to the shielding effect conferred by the nanoconfinement of the host framework, making them promising candidates for practical applications such as solid-state lighting, photonics, and optical communications. |
| spellingShingle | Xiong, T Zhang, Y Donà, L Gutiérrez, M Möslein, AF Babal, AS Amin, N Civalleri, B Tan, J-C Tunable fluorescein-encapsulated zeolitic imidazolate framework-8 nanoparticles for solid-state lighting |
| title | Tunable fluorescein-encapsulated zeolitic imidazolate framework-8 nanoparticles for solid-state lighting |
| title_full | Tunable fluorescein-encapsulated zeolitic imidazolate framework-8 nanoparticles for solid-state lighting |
| title_fullStr | Tunable fluorescein-encapsulated zeolitic imidazolate framework-8 nanoparticles for solid-state lighting |
| title_full_unstemmed | Tunable fluorescein-encapsulated zeolitic imidazolate framework-8 nanoparticles for solid-state lighting |
| title_short | Tunable fluorescein-encapsulated zeolitic imidazolate framework-8 nanoparticles for solid-state lighting |
| title_sort | tunable fluorescein encapsulated zeolitic imidazolate framework 8 nanoparticles for solid state lighting |
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