Enhancement in the Photoluminescence Properties of SiO2:Ge Embedded in a Polymeric Matrix

 

• G. Lesly Jimenez
  Doctoral Program in Nanoscience’s and Nanotechnology, Center for Research and Advanced Studies of the National Polytechnic Institute, 2508 IPN Avenue, 07360 Mexico City, Mexico
• C. Falcony
  Department of Physics, Center for Research and Advanced Studies of the National Polytechnic Institute, 2508 IPN Avenue, 07360 Mexico City, Mexico
• C. Vazquez-Lopez
  Department of Physics, Center for Research and Advanced Studies of the National Polytechnic Institute, 2508 IPN Avenue, 07360 Mexico City, Mexico
• J. I. Golzarri
  Institute of Physics, National Autonomous University of Mexico (UNAM), 04520 Mexico City, Mexico
• G. Espinosa
  Institute of Physics, National Autonomous University of Mexico (UNAM), 04520 Mexico City, Mexico

DOI: https://doi.org/10.15415/jnp.2018.61022

Keywords: Photoluminescence, Polymer films, SBC, PTFE

Abstract

Polymer films of styrene butadiene copolymer (SBC) mixed with SiO₂:Ge powder were successfully obtained by the drop casting method. The SBC concentration (in chloroform solution) was 10%w/v and the SiO₂:Ge powder was mixed (mass ratio 80:20 respectively). The thicknesses of the films obtained were 50, 100, and 200 μm. In addition, polymer films of polytetrafluoroethylene (PTFE) preparation (60% dispersion in water), were obtained mixing 2 ml of PTFE and 0.05g of SiO₂:Ge powder with a mass relation of 98% polymer and 2% SiO₂:Ge. The photoluminescence emission spectra (PL) of SBC doped with SiO₂:Ge resulted in similar characteristics to those for SiO₂:Ge powders, although their intensity shows an increase 3.5 times approximately, compared with the pure powder. On the other hand, the PTFE films with SiO2:Ge present just one peak in the PL emission at 439 nm but their intensity increases 18 times respect to the powder. The photoluminescence excitation (PLE) spectra of the SiO₂:Ge powders show the characteristic peaks at 248 nm (most intense) and at 366 nm. However, when the powder is embedded either in SBC or PTFE the peak at 366 nm shows an important increase which seems to indicate an energy transfer from the polymer to the SiO₂:Ge.

 

References

B. Pivac, P. Dubček, J. Popović, J. Dasović, S. Bernstorff et al., Journal of Applied Crystallography. 49, 1957–1966 (2016). https://doi.org/10.1107/S1600576716014175

C. N. Ye, X. M. Wu, N. Y. Tang, L. J. Zhuge, W. G. Yao et al., Science and Technology of Advanced Materials. 3, 257–260 (2002). https://doi.org/10.1016/S1468-6996(02)00024-4

M. Martini, F. Meinardi, A. Paleari, G. Spinolo, and A. Vedda, Physical Review B, 57(7), 3718–3721 (1998). https://doi.org/10.1103/PhysRevB.57.3718

J. K. Shen, X. L. Wu, R. K. Yuan, N. Tang, J. P. Zou et al., Applied Physics Letters. 77(20), 3134–3136 (2000). https://doi.org/10.1063/1.1325399

S. K. Shen, X. L. Wu, X. M. Bao, R. K. Yuan, J. P. Zou, Physics Letters A. 273, 208–211 (2000). https://doi.org/10.1016/S0375-9601(00)00492-8

N. S. Allen, A. Barcelona, M. Edge, A. Wilkinson, and Galan-Merchan et al., Polymer Degradation and Stability. 86, 11–23 (2004). https://doi.org/10.1016/j.polymdegradstab.2003.10.010

A. Gruger, A. Régis, T. Schomatko, and P. Colomban, Vibrational Spectroscopy 26, 215–225 (2001). https://doi.org/10.1016/S0924-2031(01)00116-3

C. Y. Liang, and S. Krimm, Journal of Chemical Physics. 25(3), 563–571 (1956). https://doi.org/10.1063/1.1742964

X. C. Wu, W. H. Song, B. Zhao, Y. P. Sun, J. J. Du, Chemical Physics Letters. 349, 210–214 (2001). https://doi.org/10.1016/S0009-2614(01)01213-1

M. Josephine, Applied Optics. 21, 136–140 (1982). https://doi.org/10.1364/AO.21.000136

N. J. J. Johnson, S. H. Shuo-Diao, E. M. Chan, H. Dai, A. Almutairi, Journal of the American Chemical Society. 139, 3275–3282 (2017). https://doi.org/10.1021/jacs.7b00223

S. Mirabella, S. Cosentino, A. Gentile, G. Nicotra, N. Piluso et al., Applied Physics Letters. 101(011911), 1–4 (2012).

J. Nishii, N. Kitamura, and H. Yamanaka., Optics Letters. 20, 1184–186 (1995). https://doi.org/10.1364/OL.20.001184

T. Gao, X. M. Bao, F. Yan, and S. Tong, Physics Letters. A, 232(3-4), 321–325 (1997). https://doi.org/10.1016/S0375-9601(97)00387-3

 

Issue

Vol 6 No 1 (2018) 

 

 

How to Cite

G. Lesly Jimenez; C. Falcony; C. Vazquez-Lopez; J. I. Golzarri; G. Espinosa. Enhancement in the Photoluminescence Properties of SiO2:Ge Embedded in a Polymeric Matrix. J. Nucl. Phy. Mat. Sci. Rad. A. 1, 6, 129-133.