Research Article | Open Access | 10.31586/Physicochemical.0202.02

Annealing Temperature Effect on Properties of Chemically Deposited PbTe Films and Bulk

  • Ghassan Nashed Department of Physics, Collage of Sciences, University of Aleppo


The PbTe films were deposited onto glass substrate (microscopic slices) by a chemical bath method (CBD) at room temperature. The deposited films are dense, smooth, and uniform with silver gray metallic luster structure. Using XRD, it found that the structure of PbTe possesses stable face centered cubic (fcc) phase. The grain size of the PbTe bulk increased within the range of 33– 57 nm with annealing temperature increasing. AFM micrographs of surface of the prepared film are observed that horizontal distance in the rang (230– 395) nm. The band gaps of the PbTe are determined from UV-Vis spectrophotometer and are found to be within the range ( 0.39 - 0.95) eV. Energy band gab of PbTe which determined from FT -IR spectrophotometer is (0.36ev). The activation energy varied from 0.35- 1.72 eV for films and from 0.11-0.34 eV for bulk with annealing temperature variations from 373-573K. Films and bulk exhibit p-type conduction and resistivity in the range (75×10-4 ?. cm - 146×10-4 ? .cm). The carriers density and Hall mobility in PbTe bulk were in the rang 5.8 ×1023 m-3 and 4.004 m2/Vs.


Figure 3 of 13


X Yang, Z Yan, L Jiang, X Wang, K Zheng. 2003 - . Mater Lett. 57, 2755-2760.
Q Zhang, F Huang, Y Li. 2005 - Cadmium sulfide Nano rods formed in microemulsions. Coll. Surf. 497, 257 ? 258.
S Kumar, Z.H Khan, M.A Majeed Khan, M Husain. 2005 - Studies on thin films of Leads Chalcogenide. Current Applied Physics. 5,561.
Chao, I. N; McCann, P. J; Yuan,W. L; O'Rear E, A; Yuan, S. 1998 - Structural, Electrical, and Optical Properties of PbTe Thin Films Prepared by Simple Flash Evaporation Method. Thin Solid Films. 323,126.
Pop, I; ; ; ; 1997 - Structural and optical properties of PbS thin films obtained by chemical deposition. Thin Solid Films. 307, 240.
Harman, T.C; Taylor, P. J; Walsh, M. P; LaForge, B.E. 2002 - Quantum Dot Superlattice Thermoelectric Materials and Devices. Science. 297, 2229.
Hicks, L.D;Harman, T.C; Sun, X; Dresselhaus, M.S. 1996 - Low Dimensional Thermoelectric Materials. Phys.104,93.
Sahay, S. S; Guruswamy, S; Mater, J. 1998 ? Expitaxial growth of PbTe film on Si substiate. Sci. Lett. 17,1145.
Komissarova, T; Khokhlov, D; Ryabova, L; Dashevsky, Z; Kasiyan, V. 2007-Impedance of photosensitive nanocrystalline PbTe(In) films.. Phys. Rev. B,. 75,1-5.
Ito, M; Seo, W. S; Koumoto, K; Mater, J. 1999 - Thermoelectric properties of PbTe thin films prepared by gas evaporation method. J. Mater. Res. 14, 209.
Jdanov, A; Pelleg, J; Dashevsky, Z; Shneck, R. 2004 ?Growth and characterization of PbTe films by magnetron sputtering. Mater. Sci. Eng. B.106, 89.
Zogg, H; Alchalabi, K; Zimin, D. 2001 - Electrodeposition of PbTe thin films from acidic nitrate baths.DefenceSci.J.51,53.
Jacquot, A; Lenoir, B; Boffoue, M.O; Dauscher, A.1999-Facile synthesis of thermoelectric films via spin-coating metastable precursors. Appl.Phys.AMater.Sci. Process. 69, 613.
Sharov, M. K; Ugai, Y.A. Surf, J.2008 - Facile synthesis of PbTe nanoparticles and thin films in alkaline aqueous solution at room temperature. Invest.2,481.
Chen, H.Y; Dong, S.S; Yang, Y.K; M.Li, D; Zhang, J.H;Wang, X. J; Kan, S. H; Zou, G.T. 2004 - The effect of high pressure on the emissions of Eu3 + in cubic Y2O3 and Gd2O3 hosts J.Cryst.Growth.273,156.
Saloniemi, H; Kanniainen, T; Ritala, M; Leskela, M. 1998-Electrodeposition of PbTe Thin Films. Thin Solid Films. 326,78.
Ezema, F.I; Osuji, R.U. 2006 ? perpation and optical characterization of chermical bath deposited. Journal Applied Sciences. 6,1827.
Pentia, E., L. Pintilie, T. Matei, E. Botila, and E. Ozbay. 2001 - Chemically prepared nanocrystalline PbS thin film. Journal of Optoelectronics and Advanced Materials. 3, 525.
Parra, R.S., P.J. George, G.G. Sanchez, G. Jimennez, L. Banos, and P.K. Nair. 2000 - Analysis of Thin Chalcogenide PbS Films Prepared from Chemical Bath. Journal of Physics and Chemistry of Solids. 61,659.
Garcia, V.M; Nair; M.T.S; Nair, P.K. 1991 - Optical properties of PbS-CuxS and Bi2S3?CuxS thin films with reference to solar control and solar absorber applications. Sol Energy Mater.23, 47?59.
Stancu,V; Buda,M. Pintilie L. Pintilie I, Botila T and G. Iordache. 2008-Chemically prepared nanocrystalline PbS thin films.thin solid films.516, 4301- 4306.
Ubale, A. U; Junghare, A.R; Wadibahasmi, N.A; Daryapurkar, A. S; Manker, R.B; Sangawar, V.S.. 2007- Some electrical properties of thin PbS films. "Turk Journal of Physics. 31, 279-286.
Pankove, J.I. 1971 - Optical Processes in Semiconductors, Prentice-Hall Inc, Englewood Cliffs, NJ,
Neha, B; Rajiv,V. Patel,S.G; and. Jani, A.R. 2004 ? X-ray diffraction studies of NbTe2 single crystal. Bulletin of Material Science. 27,23.
Obida, M.Z; Afify, H.H; Abou-Helal, M.O, Zaid,H.A.H. 2005 - . Egypt Journal of Solids. 28,1.

Author Biography

Ghassan Nashed, Department of Physics, Collage of Sciences, University of Aleppo

Department of Physics

Collage of Sciences

University of Aleppo

Article metrics
Views 160
Downloads 118
Citations 6
PDF View Full-Text