Medium effects on the photophysical properties of terbium(iii) complexes with pyridine-2,6-dicarboxylateElectronic supplementary information (ESI) available: 1. Description of the detection unit for time resolved spectroscopy; 2. Results from deconvolution of the emission spectra of Tb, Tb(DPA) and Tb(DPA)3; and 3. Investigation of possible intermolecular energy transfer when terbium(iii) or DPA concentration is in excess. See http://www.rsc.org/suppdata/pp/b2/b206370k/

2002 ◽  
Vol 1 (12) ◽  
pp. 925 ◽  
Author(s):  
Guilford Jones, II ◽  
Valentine I. Vullev
Keyword(s):  
Energy Transfer ◽  
Photophysical Properties ◽  
Emission Spectra ◽  
Supplementary Information ◽  
Medium Effects ◽  
Time Resolved ◽  
Time Resolved Spectroscopy ◽  
Intermolecular Energy ◽  
Intermolecular Energy Transfer ◽  
Detection Unit

Efficient Intermolecular Energy Transfer between Polysilanes Revealed by Time-Resolved Photoluminescence

1998 ◽  
Vol 37 (Part 1, No. 8) ◽  
pp. 4412-4416 ◽  
Author(s):  
Satoshi Aihara ◽  
Norihiko Kamata ◽  
Wakana Ishizaka ◽  
Masato Umeda ◽  
Akira Nishibori ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Time Resolved ◽  
Intermolecular Energy ◽  
Intermolecular Energy Transfer ◽  
Time Resolved Photoluminescence

Electronic energy transfer in dinuclear metal complexes containing meta-substituted phenylene units

2005 ◽  
Vol 77 (6) ◽  
pp. 1035-1050 ◽  
Author(s):  
A. D’Aléo ◽  
S. Welter ◽  
E. Cecchetto ◽  
L. De Cola
Keyword(s):  
Energy Transfer ◽  
Steady State ◽  
Metal Complexes ◽  
Photophysical Properties ◽  
Electronic Energy ◽  
Dinuclear Complexes ◽  
Time Resolved ◽  
Time Resolved Spectroscopy ◽  
Electronic Energy Transfer ◽  
Dinuclear Metal Complexes

The synthesis and photophysical properties of heterometallic dinuclear complexes based on ruthenium and osmium trisbipyridine units, Ru-mPh3-Os and Ru-mPh5-Os, in which the metal complexes are linked via an oligophenylene bridge centrally connected in the meta position, are described. Electronic energy transfer from the excited ruthenium-based component (donor) to the osmium moiety (acceptor) has been investigated using steady-state and time-resolved spectroscopy. The results obtained for the meta-substituted compounds are compared with the analogous systems in which the phenylene spacers are substituted in the para position. The mechanism of energy transfer is discussed.

The study of intramolecular decay and intermolecular energy transfer for phosphorescent organic light-emitting devices

2021 ◽  
Vol 23 (12) ◽  
pp. 7495-7503
Author(s):  
Wanlin Cai ◽  
Kai Ren ◽  
Ancong Zhao ◽  
Xiulan Wu ◽  
Rongxing He ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Rational Design ◽  
Energy Transfer Efficiency ◽  
Transfer Efficiency ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Intermolecular Energy ◽  
Intermolecular Energy Transfer ◽  
Organic Light Emitting Devices

Compared to the PtOO7-based system, the greater EQE of the PtON7-based system is mainly governed by the stronger energy transfer efficiency (ηEET); thus, it is necessary to evaluate ηEET from hosts to guests for the rational design of OLEDs.

scholarly journals Photophysical properties and fluorosolvatochromism of D–π–A thiophene based derivatives

RSC Advances ◽  
2020 ◽  
Vol 10 (71) ◽  
pp. 43459-43471
Author(s):  
Hussain A. Z. Sabek ◽  
Ahmed M. M. Alazaly ◽  
Dina Salah ◽  
Hesham S. Abdel-Samad ◽  
Mohamed A. Ismail ◽  
...  
Keyword(s):  
Photophysical Properties ◽  
Fluorescence Emission ◽  
Time Resolved ◽  
Time Resolved Spectroscopy ◽  
Solvation Models

Solvation-dependent photophysical properties of two push–pull thiophene-based compounds with donor–π–acceptor (D–π–A) structures were investigated using absorption, fluorescence emission and time resolved spectroscopy, and supported by different solvation models.

scholarly journals New Approach in the Application of Conjugated Polymers: The Light-Activated Source of Versatile Singlet Oxygen Molecule

Materials ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1098
Author(s):  
Agata Blacha-Grzechnik
Keyword(s):  
Conjugated Polymers ◽  
Singlet Oxygen ◽  
Near Infrared ◽  
Photophysical Properties ◽  
Short Review ◽  
The Novel ◽  
New Approach ◽  
Intermolecular Energy ◽  
Intermolecular Energy Transfer ◽  
High Absorption

For many years, the research on conjugated polymers (CPs) has been mainly focused on their application in organic electronics. Recent works, however, show that due to the unique optical and photophysical properties of CPs, such as high absorption in UV–Vis or even near-infrared (NIR) region and efficient intra-/intermolecular energy transfer, which can be relatively easily optimized, CPs can be considered as an effective light-activated source of versatile and highly reactive singlet oxygen for medical or catalytic use. The aim of this short review is to present the novel possibilities that lie dormant in those exceptional polymers with the extended system of π-conjugated bonds.

Synthesis and Photophysical Properties of a Conformationally Flexible Mixed Porphyrin Star-Pentamer

2009 ◽  
Vol 62 (7) ◽  
pp. 692 ◽  
Author(s):  
Toby D. M. Bell ◽  
Sheshanath V. Bhosale ◽  
Kenneth P. Ghiggino ◽  
Steven J. Langford ◽  
Clint P. Woodward
Keyword(s):  
Energy Transfer ◽  
Photophysical Properties ◽  
Fluorescence Decay ◽  
High Yield ◽  
Free Base ◽  
Time Resolved ◽  
Zinc Porphyrin ◽  
Relative Contribution ◽  
Synthetic Strategy ◽  
Decay Times

The synthesis of a porphyrin star-pentamer bearing a free-base porphyrin core and four zinc(ii) metalloporphyrins, which are tethered by a conformationally flexible linker about the central porphyrin’s antipody, is described. The synthetic strategy is highlighted by the use of olefin cross metathesis to link the five chromophores together in a directed fashion in high yield. Photoexcitation into the Soret absorption band of the zinc porphyrin chromophores at 425 nm leads to a substantial enhancement of central free-base porphyrin fluorescence, indicating energy transfer from the photoexcited zinc porphyrin (outer periphery) to central free-base porphyrin. Time-resolved fluorescence decay profiles required three exponential decay components for satisfactory fitting. These are attributed to emission from the central free-base porphyrin and to two different rates of energy transfer from the zinc porphyrins to the free-base porphyrin. The faster of these decay components equates to an energy-transfer rate constant of 3.7 × 109 s–1 and an efficiency of 83%, whereas the other is essentially unquenched with respect to reported values for zinc porphyrin fluorescence decay times. The relative contribution of these two components to the initial fluorescence decay is ~3:2, similar to the 5:4 ratio of cis and trans geometric isomers present in the pentamer.

Ultrafast intermolecular energy transfer in heavy water

2009 ◽  
Vol 11 (40) ◽  
pp. 9033 ◽  
Author(s):  
L. Piatkowski ◽  
K. B. Eisenthal ◽  
H. J. Bakker
Keyword(s):  
Energy Transfer ◽  
Heavy Water ◽  
Intermolecular Energy ◽  
Intermolecular Energy Transfer
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