Abstract
(GeSe5)1−xInx calcogenide glasses with 5,10,15,20 mol% In have been investigated. Some physico-chemical characteristics have been obtained: the density ρ, compactness δ, and molar volume Vm. The free volume percentage FVP has been attained; correlations with the mean coordination number Z are discussed. The number of constraints per atom Nco as a function of the average coordination number has been calculated. The correlations between composition and properties of the glasses are discussed in terms of structural transformations in the glassy matrix. The processes of vacuum evaporation and condensation in the Ge-Se-In system were investigated. The films deposited under the conditions used are amorphous and without 3D defects as proven by TEM analysis. The optical spectra of the thin films have been studied with a view to understand the role of indium on the film behavior. An optical characterization method based on transmission and reflection spectra at normal incidence of uniform thin films has been used to obtain the thicknesses and optical constants of as-deposited and annealed samples. The dispersion of the refractive index is discussed in terms of the single-oscillator Wemple-DiDomenico model. The absorption edges are described using both the Urbach rule and the ‘nondirect transition’ model proposed by Tauc. The variations in the refractive index, the band-gap, and the oscillation energy of the films after annealing are discussed in terms of rearrangements of the main structure units.
Keywords
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsReferences
S. Marian, K. Potje-Kamloth, D. Tsiulyanu, H-D. Liess, Thin Solid Films 349, 108 (2000).
K. Petkov, R. Todorov, M. Kincl, L. Tichy, J. Optoel. Adv. Mater. 7, 2587 (2005).
G. Boudebs, S. Cherukulappurath, M. Guignard, J. Troles, F. Smektala, F. Sanchez, Optics Commun. 230, 331 (2004).
M. Frumar, T. Wagner, Current Opin. Sol. St. Mater. Sci. 7, 117 (2003).
X. Hua Zhang, H. Ma, J. Lu, Optical Materials 25, 85 (2004).
R.J. Curry, A.K Mairaj, C.C Huang, R.W Eason, C. Grivas, D.W Hewak, J.V. Badding, J.Amer. Ceram. Soc. 88, (9), 2451 (2005).
M.Vlcek, S. Schroeter, S. Brueckner, S. Fehling, J. Mat. Sci: Mat. Electron 20, S290 (2009).
A. Bhargava, B. Suthar, J. Ovonic Res. 5, 187 (2009).
J.A. Moon; D.T. Schaafsma, Fiber and Integrated Optics 19, 201 (2000).
M. Shurgalin, V. Fuflyigin, E. G Anderson J. Phys. D: Appl. Phys. 38, 4037 (2005).
G. Saffarini, H. Schmitt, H. Shanak, J. Müller, Phys. Stat. Sol. (b) 239, 251 (2003).
M.M. Wakkad, E.Kh. Shokr, S.H. Mohamed, J. Non-Cryst. Sol. 265, 157 (2000).
A. Ganjoo, N. Yoshida, K. Shimakawa, Recent Res. Dev. Appl. Phys. 2, 129 (1999).
M.S. Iovu, S.D. Shutov, M. Popescu, J. Non-Cryst. Solids 299 924 (2002).
E. Marquez, T. Wagner, J.M. Gonzalez-Leal, A.M. Bernal-Oliva, R. Prieto-Alcon, R. Jimenez-Garay, P.J.S. Ewen, J. Non-Cryst. Solids,274, 62 (2000).
A. Arsh, M. Klebanov, V. Lyubin, L. Shapiro, A. Feigel, M. Veinger, B. Sfez, Optical Mat. 26, 301 (2004).
V. Lyubin, M. Klebanov, A. Feigel, B. Sfez, J. Non-Cryst. Solids 359, 183 (2004).
V.M. Lyubin, M. Klebanov, B. Sfez, B. Ashkinadze, Mat. Lett., 58 1706 (2004).
M. Hafiz, A. Moharram, M. Abdel-Rahim, A.A. Abu-Sehly, Thin Solid Films 292, 7 (1997).
M.A. Majeed Kan, M. Zulfequar, M. Husain, J. Opt. Mater. 22, 21 (2003).
J.Y. Shim, S.W. Park, H.K. Baik, Thin Solid Films 292, 31 (1997).
T. Petkova, Y. Nedeva, P. Petkov, J. Optoelectr. Adv. Mater. 3, 855 (2001).
J. Philips M. Thorpe, Solid State Commun. 53, 699 (1985).
S. H. Wemple, M. DiDomenico, Phys. Rev. B 3, 1338 (1971).
P. Petkov, S. Parvanov, Y. Nedeva, E. Kashchieva, Phys. Chem. Glasses 41, 377 (2000).
P. Petkov, C. Vodenicharov, C. Kanasirski, Phys. Stat. Sol. (a) 168, 447 (1998).
L. Pauling, The Nature of the Chemical Bond, Cornell University Press (1960).
A. Stoilova, P. Petkova, Y. Nedeva and B. Monchev, AIP Conf. Proc. 1203, 398 (2010).
R. Swanepoel, J. Phys. E: Sci. Instrum. 17, 896 (1984).
J. Tauc, Amorphous and Liquid Semiconductors, Plenum, New York (1979).
N. Mott, E. A. Davis, Electronic Processes in Non-Crystalline Materials, Clarendon Press, London (1970).
Acknowledgments
The authors would like to express their gratitude to the Bulgarian National Science Fund for the financial support under the contract BG051PO001/07/3/3-02/58.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2011 Springer Science+Business Media B.V.
About this paper
Cite this paper
Petkov, P., Petkov, E. (2011). Optical Properties of Thin Ge-Se-In Chalcogenide Films for Sensor Applications. In: Reithmaier, J., Paunovic, P., Kulisch, W., Popov, C., Petkov, P. (eds) Nanotechnological Basis for Advanced Sensors. NATO Science for Peace and Security Series B: Physics and Biophysics. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-0903-4_19
Download citation
DOI: https://doi.org/10.1007/978-94-007-0903-4_19
Published:
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-007-0902-7
Online ISBN: 978-94-007-0903-4
eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)