Photonics and application of dipyrrinates in the optical devices

3rd International School and Conference on Optoelectronics, Photonics, Engineering and Nanostructures (Saint Petersburg OPEN 2016)

Aksenova, Iu^1 ; Bashkirtsev, D.^1 ; Prokopenko, A.^1 ; Kuznetsova, R.^1 ; Dudina, N.^2 ; Berezin, M.^2

Laboratory of Photophysics and Photochemistry of Molecules, Tomsk State University, Tomsk

634050, Russia^1

Laboratory of Physical Chemistry of Solutions of Macrocyclic Compound, G.A. Krestov Institute of Solution Chemistry RAS, Ivanovo

153045, Russia^2

关键词: Coordination complex;    Different structure;    Emission intensity;    Luminescent characteristics;    Optical characteristics;    Oxygen concentrations;    Photocatalytic reactions;    Sensory characteristics;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/741/1/012127/pdf
DOI  :  10.1088/1742-6596/741/1/012127

来源: IOP

【 摘 要 】

In this paper spectral-luminescent, lasing, photochemical, and sensory characteristics of a number of Zn(II) and B(III) coordination complexes with dipyrrinates with different structures are presented. We have discussed relations of the structure of investigated compounds and formed solvates with their optical characteristics. The results showed that alkyl substituted dipyrrinates derivatives have excellent luminescent characteristics and demonstrated effective lasing upon excitation of Nd:YAG-laser. They can be used as active media for liquid tunable lasers. Zinc and boron fluoride complexes of dipyrrinates with heavy atoms in structure don't have fluorescence but have long-lived emission due to increased nonradiative intersystem processes in the excited state by the mechanism of a heavy atom. For solid samples based on halogenated complexes was found dependency of the long-lived emission intensity of the oxygen concentration in gas flow. The presence of line segment indicates the possibility of the use of these complexes as a basis for creation of optical sensors for oxygen. Moreover, results of a study of halogen-substituted aza-complexes under irradiation are presented. Such complexes are promising for the creating media for generation of singlet oxygen (1O2), which is important for photodynamic therapy in medicine and photocatalytic reactions in the industry.