Urbach’s rule of Bi4Ge3O12 doped with 3d and 4d ions
Source abstract
Abstract
Abstract In this work, the influence of 3d (Fe, Mn) and 4d (Ru) ions on the absorption coefficient of the doped Bi 4 Ge 3 O 12 (BGO) in the spectral range 3.6–4.05 eV has been determined. The validity of Urbach’s rule is verified in an illuminated and an annealed state of the samples. The dependence between the incorporation of the different dopants and the values of their Urbach’s parameters is established. The creation and the destruction of the excitons, associated with the ionized donors, are explained. The Urbach’s energy of all samples is determined.
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Research context
OpenAlex topics: Photorefractive and Nonlinear Optics · Glass properties and applications · Photonic and Optical Devices
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References (14)
Show source-provided references
1. Petkova · Proc. SPIE · 2006 · 6252
2. Uzunov · Comptes Rendus De L’Academie Bulgare Des Sciences · 2011 · 64
3. Marinova · Opt. Commun. · 2008 · 281 · 3710.1016/j.optcom.2007.09.003 ↗
4. Marinova · J. Appl. Phys. · 2005 · 9810.1063/1.2140869 ↗
5. Kaminskii · Phys. Status Solidi (a) · 1976 · 33 · 73710.1002/pssa.2210330234 ↗
6. Bravo · J. Phys. Condens. Mater. · 1990 · 2 · 1012310.1088/0953-8984/2/50/016 ↗
7. Martin · Phys. Rev. B · 1996 · 54 · 1291510.1103/PhysRevB.54.12915 ↗
8. Kovacs · Appl. Phys. A · 1991 · 52 · 30710.1007/BF00324770 ↗
9. B.V. Shulgin, T.I. Polupanova, A.V. Kruzhalov, V.M. Skorikov, Bismuth Orthogermanate Vneshtorgizdat, Sverdlovsk, 1992 (in Russian).
10. Kurik · Phys. Status Solidi (a) · 1971 · 8 · 910.1002/pssa.2210080102 ↗
11. Urbach10.1143/JPSJ.31.342 ↗
12. Faruque Ahmed · Thin Solid Films · 2009 · 517 · 403510.1016/j.tsf.2009.01.135 ↗
13. 2006
14. Semiconductor Physics10.15407/spqeo5.01.009 ↗