Up-conversion of photon energy in colloidal clay systems
Source abstract
Abstract
The up-conversion (UC) of photon energy was attempted for the system of a colloidal clay dispersion through the mechanism of triplet-triplet annihilation. Tris(1,10-phenanthroline)ruthenium(II) ([Ru(phen) 3] 2+ ) and 9, 10-diphenylanthracne (DPA) were used as a donor and an acceptor, respectively. A used clay mineral was synthetic saponite. A medium was 1:1:0.1 ( v/v) methanol/dichloromethane/water. Δ-[Ru(phen) 3] 2+ (4.9 × 10 −5 M) was adsorbed by SAP (3.8 × 10 −4 M) to 26% CEC. The dispersion was irradiated by a laser light (0.5 mW) at 450 nm in the presence of DPA (4.2 × 10 −3 M). An emission with the peak around 430 nm was observed under air. It implied the Ru(II) complex adsorbed by a colloidal clay acted as a donor to achieve UC. Quantum yield of UC was estimated to be 0.009 ± 0.003. The effect of stereoselectivity was investigated when a chiral donor/acceptor pair was employed.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Photochemistry and Electron Transfer Studies · Glass properties and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (30)
Show source-provided references
1. Photon upconverting liquids: matrix-free molecular up-conversion systems functioning in air10.1021/ja411316s ↗
2. Photochemical upconversion in water10.1039/C7CC07188D ↗
3. Amplification of circularly polarized luminescence through triplet–triplet annihilation-based photon upconversion10.1021/jacs.7b04611 ↗
4. Ruthenium(II) polyimine complexes with a long-lived 3IL excited state or a 3MLCT/3IL equilibrium: efficient triplet sensitizers for low-power up-conversion10.1002/anie.201006192 ↗
5. Solid-state photon upconversion materials: structural integrity and triplet–singlet dual energy migration10.1021/acs.jpclett.8b02172 ↗
6. Photocatalytic oxygen evolution triggered by photon upconverted emission based on triplet–triplet annihilation10.1039/D0CP06139E ↗
7. Bulk transparent photon upconverting films by dispersing high-concentration ionic emitters in epoxy resins, ACS Appl10.1021/acsami.0c23121 ↗
8. Sensitized triplet–triplet annihilation up-conversion in water and its application to photochemical transformations10.1039/C8SC01829D ↗
9. Water-dispersible triplet–triplet annihilation photon up-conversion particle: molecules integrated in hydrophobized two–dimensional interlayer space of montmorillonite and their application for photocatalysis in the aqueous phase10.1021/acsami.9b15957 ↗
10. Nanoencapsulated phase-change materials: versatile and air-tolerant platforms for triplet−triplet annihilation up-conversion, ACS Appl10.1021/acsami.1c21080 ↗
11. Recent advances of circularly polarized luminescence in photon up-conversion systems10.1246/cl.200771 ↗
12. Highly photostable near-Ir-excitation upconversion nanocapsules based on triplet-triplet annihilation for in vivo bioimaging application10.1021/acsami.7b17929 ↗
13. 1,10-phenanthroline ruthenium(II) complexes as model systems in the search for high-performing triplet photosensitisers: addressing ligand versus metal effects10.1002/cptc.201700158 ↗
14. Near infrared-to-blue photon upconversion by exploiting direct S–T absorption of a molecular sensitizer10.1039/C7TC00827A ↗
15. Monte-carlo simulations for interactions of metal complexes with the silicate sheets of a clay: comparison of binding states between tris(1,10-phenanthroline)metal(II) and tris(2,2′-bipyridyl) metal(II) chelates10.1021/ja00053a034 ↗
16. Efficient energy transfer of cationic iridium(III) complexes on the surface of a colloidal clay10.1016/j.clay.2014.05.008 ↗
17. Photochemical Up-conversion: the primacy of kinetics10.1021/jz501799m ↗
18. Photochemical upconversion approach to broad-band visible light generation10.1021/jp712165h ↗
19. Non-centrosymmetric behavior of a clay film ion-exchanged with chiral metal complexes
20. Microscopic chiral pockets in a tris(chelated) iridium(III) complex as sites for dynamic enantioselective quenching10.1039/C7NJ04688J ↗
21. Harvesting light energy by iridium(III) complexes on a clay surface10.1039/C5CP02414E ↗
22. Accessing the long-lived emissive 3IL triplet excited states of coumarin fluorophores by direct cyclometallation and its application for oxygen sensing and upconversion10.1039/c1dt10344j ↗
23. Stereochemistry and molecular recognition on the surface of a smectite clay10.1346/CCMN.2012.0600407 ↗
24. Stereochemical effects on monolayer formation of [Ru(dpp)3]2+ (dpp = 4,7-Diphenyl-1,10-phenanthroline) at an air-water interface10.1021/jp952181a ↗
25. Clay column chromatography for optical resolution: selectivities of Λ-[Ru(phen)3]2+ and Δ-[Ru(bpy)3]2+ laponite columns towards 1, l'-binaphthol10.1016/0169-1317(96)00010-5 ↗
26. New triplet sensitization routes for photon up-conversion: thermally activated delayed fluorescence molecules, inorganic nanocrystals, and singlet-to-triplet absorption10.1021/acs.accounts.7b00235 ↗
27. Steering triplet−triplet annihilation up-conversion through enantioselective self-assembly in a supramolecular gel10.1021/jacs.1c05927 ↗
28. Stabilization of oxidized ruthenium complexes by adsorption on clay minerals10.1016/j.clay.2020.105869 ↗
29. Effects of the surface charge density of clay minerals on surface-fixation induced emission of acridinium derivatives10.1021/acsomega.1c03157 ↗
30. On the quantum yield of photon upconversion via triplet–triplet annihilation10.1021/acsenergylett.0c01150 ↗