XIV
h
International Conference on Molecular Spectroscopy, Białka Tatrzańska 2017
100
T4: O–3
1,4-Bis(2-methylstyryl)benzene doped PMMA fibre
for blue range fluorescent applications
Piotr Miluski
1
, Marcin Kochanowicz
1
, Jacek Zmojda
1
, and Dominik Dorosz
2
1
Bialystok University of Technology, Wiejska 45D, 15-351 Bialystok, Poland,
e-mail: p.miluski@pb.edu.pl
2
AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Krakow, Poland
Nowadays, organic luminescent materials are especially attractive for new applications due
to the high efficiency of energy conversion. A new class of organic luminescent dyes and
polymers are intensively investigated. In such circumstances, growing interest of dyes doped
luminescent optical fibers for blue visible radiation range is noticeable. The polymeric host
optical fibre technology seems to be excellent for that purposes since organic dyes can be
directly incorporated into the polymer chain structure.
In the paper, the 1,4-Bis(2-methylstyryl)benzene was used for poly(methyl methacrylate)
PMMA fibre doping. The bright, multi-peak (422, 450, 488 nm) fluorescence spectrum of the
bulk specimen under UV excitation was observed. The multi-peak emission was also observed
in PMMA fibre. Moreover, the energy conversion in polymeric optical fibre leading to
significant spectrum shape modification. The first (428 nm) peak is strongly attenuated since
reabsorption plays a significant role in spectrum shape formation and the third peak (488 nm) is
dominant in recorded spectra for fiber longer than 40 cm. The fluorescence spectra and signal
attenuation in PMMA fibre are discussed too.
The presented fluorescence spectrum shape modification in PMMA fibre can be useful in a
wide range of compact light sources and sensor constructions.
Keywords: polymeric optical fibre; poly(methyl methacrylate);1,4-bis(2-methylstyryl)benzene; fluorescence
Acknowledgment
This work was supported by Bialystok University of Technology project No. S/WE/4/2013, Poland and
under EU COST Action MP1401 "Advanced fibre laser and coherent source as tools for society,
manufacturing and life science".
XIV
h
International Conference on Molecular Spectroscopy, Białka Tatrzańska 2017
101
T4: O–4
The role of glass-forming elements on luminescence and energy transfer
between lanthanide ions and noble metal nanoparticles
Jacek Żmojda
1
, Marcin Kochanowicz
1
, Piotr Miluski
1
, Renata Jadach
2
,
Maciej Sitarz
2
, and Dominik Dorosz
2
1
Department of Power Engineering, Photonics and Lighting Technology, Bialystok University of
Technology, 45D Wiejska Street,15-351 Bialystok, Poland, e-mail: j.zmojda@pb.edu.pl
2
Department of Silicate Chemistry and Macromolecular Compounds, AGH University of Science and
Technology, 30 Mickiewicza Av., 30-059 Krakow, Poland
In the field of materials engineering for photonics, the main effort is paid to develop novel
materials with unique optical and structural properties. Many of articles focus on development
of multicomponent glasses with extremely different phonon energy of glass-forming elements.
Glasses such as boro-tellurite [1], phospho-tellurite [2], antimony-borate [3] antimony-silicate
[4] are intensively investigated towards application in rare-earth (RE) doped optical fibers. The
main idea is to reduce the mulitphonon transitions in rare-earth ions and increase in quantum
efficiency of radiative emission. However, the complexity of glass composition leads to
destabilisation of lattice which results in limitations to further glass processing, for example in
optical fiber technology. In practice, the optimisation of glass structure (selection of glass-
forming elements, chemical bonding type, RE ions solubility, thermal stability) is a first
important factor in development of novel glasses.
The second thing to improve radiative properties of lanthanide ions is optimisation of ion-
ion interactions. Currently, besides RE ions the nanometric particles are introduced in glassy
matrices. The presence of some nanoparticles (NPs) of crystals, noble metals or even
semiconductors simultaneously with RE ions allows to achieve new luminescent properties
resulting from interaction of light and energy transfer between RE ions and embedded
nanoparticles. Recently, a special attention has been paid for noble metals such as gold and
silver ions [5]. The reason is that the collective oscillation of the noble metal electrons
resonantly excited by visible light causes a tremendous enhancement of the electromagnetic
near-field in the vicinity of nanoparticles. If this phenomenon exists in inorganic glasses doped
with RE ions, the luminescence signal may be amplified or quenched.
In our experiment we studied the influence of high-phonon glass-forming elements (P
2
O
5
,
B
2
O
3
and SiO
2
) on photoluminescence of antimony-germanate glasses doped with RE ions and
noble metal nanoparitlces (Ag, Au). All glasses were synthetized by standard melt-quenching
method and nanoparticles creation was taken by thermochemical reduction during heat-
treatment process. The local field effect responsible for energy transfer mechanisms between
metal NPs and RE ions has been described. Based on experimental results, an effective
embedding way of Ag particles in RE-doped optical fibers has been also discussed.
Keywords: lanthanide ions; silver and gold nanoparticles; local field effect; thermochemical reduction
Acknowledgment
The project was funded by National Science Centre (Poland) granted on the basis of the decision No. DEC-
2016/21/D/ST7/03453. The COST Action MP1401 "Advanced fibre laser and coherent source as tools for society,
manufacturing and life science" is also acknowledged.
References
[1] M.R. Dousti, R.J. Amjad, Z.A.S. Mahraz, J. Mol. Struct. 1079 (2015) 347.
[2] Y. Yang, Z. Yang, P. Li, X. Li, Q. Guo, B. Chen, Opt. Mater. 32 (2009) 133.
[3] Q. Qian, Q.Y. Zhang, H.F. Jiang, Z.M. Yang, Z.H. Jiang, Physica B 405 (2010) 2220.
[4] D. Dorosz, J. Zmojda, M. Kochanowicz, P. Miluski, P. Jelen, M. Sitarz, Spectrochim. Acta A 134 (2015)
608.
[5] S. Chatterjee, S.K. Saha, D. Chakravorty, Glass-Based Nanocomposites A2–Karmakar, Basudeb, [in:] K.
Rademann, A.L. Stepanov (Eds.) Glass Nanocomposites, William Andrew Publishing, Boston, 2016, pp. 57.
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