Skip to main content
SpringerLink
Log in

Synthesis and characterization of niobium-doped potassium tetragonal tungsten bronzes, KxNbyW1−yO3

  • Published:
Journal of Materials Science Aims and scope Submit manuscript

Abstract

Needle-shaped crystals of sizes up to 5 μm × 5 μm × 40 μm of nominal composition KxNbyW1−yO3 were synthesized by solid state method at 800 °C using appropriate amount of WO3, WO2, Nb2O5, and K2WO4. The samples were characterized with XRD, SEM, microprobe analysis, optical spectroscopy, and Raman spectroscopy. The XRD patterns of the samples show single phase of tetragonal tungsten bronze (TTB) type (P4/mbm, No. 127) up to y = 0.07. Structure refinements reveal an increase in cell parameter with increasing nominal niobium content within the TTB phase. The elemental compositions of the crystals determined by electron microprobe analysis also show an increase in Nb content with increasing y. With increasing Nb content the reflectivity minimum in the near infrared spectral range shifts towards lower wavenumber indicating the effect of decreasing carrier concentration. Pyrochlore type phase (KNbWO6) is obtained as a second phase when nominal composition y > 0.07.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7

Similar content being viewed by others

References

  1. Hägg G (1935) Z Phys Chem B 29:192

    Google Scholar 

  2. Magnéli A (1950) Nova Acta Regiae Soc Sci Upsaliensis 14:4

    Google Scholar 

  3. Magnéli A (1949) Arkiv for Kemi 1:213

    Google Scholar 

  4. Magnali A (1953) Acta Chem Scand 7:315

    Article  Google Scholar 

  5. Hussain A, Kihlborg L (1976) Acta Crystallogr A32:551

    Article  CAS  Google Scholar 

  6. Labbe Ph (1992) Key Eng Mater 68:293

    Article  CAS  Google Scholar 

  7. Tsuyumoto I, Kudo T (1996) Mat Res Bull 31:17

    Article  CAS  Google Scholar 

  8. Granqvist CG (2000) Sol Energ Mater Sol Cells 60:201

    Article  CAS  Google Scholar 

  9. Gabel J, Vonau W, Shuk P, Guth U (2004) Solid State Ionics 169:75

    Article  CAS  Google Scholar 

  10. Mann M, Shter GE, Reisner GM, Grader GS (2007) J Mater Sci 42:1010. doi:https://doi.org/10.1007/s10853-006-1384-x

    Article  CAS  Google Scholar 

  11. Skokan MR, Moulton WG, Morris RC (1979) Phys Rev B 20:3670

    Article  CAS  Google Scholar 

  12. Sato M, Grier BH, Shirane G, Fujishita H (1982) Phys Rev B 25:501

    Article  CAS  Google Scholar 

  13. Hussain A, Gruehn R, Rüscher CH (1997) J Alloys Compd 246:51

    Article  CAS  Google Scholar 

  14. Brusetti R, Haen P, Marcus J (2002) Phys Rev B 65:144528

    Article  Google Scholar 

  15. Brusetti R, Bordet P, Marcus J (2003) J Solid State Chem 172:148

    Article  CAS  Google Scholar 

  16. Leitus G, Cohen H, Reich S (2002) Physica C 371:321

    Article  CAS  Google Scholar 

  17. Hussain A, Ul-Monir A, Murshed MM, Rüscher CH (2002) Z Anorg Allg Chem 628:416

    Article  CAS  Google Scholar 

  18. Debnath T, Rüscher CH, Gesing TM, Koepke J, Hussain A (2008) J Solid State Chem 181:783

    Article  CAS  Google Scholar 

  19. Hussain A (1978) Chem Commun Univ Stockholm 2:1

    Google Scholar 

  20. Yang X, Li C, Mo M, Zhan J, Yu W, Yan Y, Qian Y (2003) J Cryst Growth 249:594

    Article  CAS  Google Scholar 

  21. Gu Z, Ma Y, Zhai T, Gao B, Yang W, Yao J (2006) Chem Eur J 12:7717

    Article  CAS  Google Scholar 

  22. Szilágyi IM, Hange F, Madarász J, Pokol G (2006) Eur J Inorg Chem 17:3413

    Article  Google Scholar 

  23. Szilágyi IM, Madarász J, Pokol G, Király P, Tárkányi G, Saukko S, Mizsei J, Tóth AL, Szabó A, Varga-Josepovits K (2008) Chem Matter 20:4116

    Article  Google Scholar 

  24. Magnéli A (1989) In: 12th European Crystallographic meeting, Moscow

  25. Deschanvres A, Frey M, Raveau B, Thomazea Jc (1968) Bull De La Societe Chim De France:3519

  26. Johansson KE, Palm T, Werner PE (1980) J Phys E: Sci Instrum 13:1289

    Article  CAS  Google Scholar 

  27. Werner PE (1970) Arkiv for Kemi 31:513

    Google Scholar 

  28. Raveau B, Thomazea Jc (1968) Comptes Rendus Hebd Des Seances De L Acad Des Sci Serie C 266:540

    CAS  Google Scholar 

  29. Miyamoto Y, Kume S, Doumerc JP, Hagenmuller P (1983) Mat Res Bull 18:1463

    Article  CAS  Google Scholar 

  30. Dubson MA, Holcomb DF (1985) Phys Rev B 32:1955

    Article  CAS  Google Scholar 

  31. Darriet B, Rat M, Galy J (1970) Comptes Rendus Hebd Des Seances De L Acad Des Sci Serie C 271:1324

    CAS  Google Scholar 

  32. Feinleib J, Scouler WJ, Ferretti A (1968) Phys Rev B 165:765

    Article  CAS  Google Scholar 

  33. Kuhn A, Bashir H, Dos Santos AL, Acosta JL, García-Alvarado F (2004) J Solid State Chem 177:2366

    Article  CAS  Google Scholar 

  34. Sanjuán ML, Kuhn A, Azcondo MT, García-Alvarado F (2008) Eur J Inorg Chem 2008:49

    Article  Google Scholar 

  35. Maczka M, Hanuza J, Majchrowski (2001) J Raman Spectrosc 32:929

Download references

Acknowledgement

AH is grateful to the Alexander von Humboldt Stiftung, Germany, and University Grants Commission, Bangladesh for financial support. TD thanks the “Land Niedersachsen”, Germany for support with the “Lichtenberg Stipendium” for his Ph.D. research fellowship. Finally, the authors are thankful to two anonymous referees for their helpful comments.

Author information

Authors and Affiliations

  1. Institut für Mineralogie und Zentrum für Festkörperchemie und neue Materialien (ZFM), Leibniz Universität Hannover, Callinstraße 3, 30167, Hannover, Germany

    Tapas Debnath & Claus H. Rüscher

  2. Department of Chemistry, University of Dhaka, Dhaka, 1000, Bangladesh

    Subrata Chandra Roy & Altaf Hussain

Authors
  1. Tapas Debnath
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Subrata Chandra Roy
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Claus H. Rüscher
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Altaf Hussain
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Tapas Debnath.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Debnath, T., Roy, S.C., Rüscher, C.H. et al. Synthesis and characterization of niobium-doped potassium tetragonal tungsten bronzes, KxNbyW1−yO3 . J Mater Sci 44, 179–185 (2009). https://doi.org/10.1007/s10853-008-3101-4

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10853-008-3101-4

Keywords

Search

Navigation