Skip to main content
    • Aa
    • Aa

Growth and transport properties of p-type GaNBi alloys

  • Alejandro X. Levander (a1), Sergei V. Novikov (a2), Zuzanna Liliental-Weber (a3), Roberto dos Reis (a4), Jonathan D. Denlinger (a5), Junqiao Wu (a6), Oscar D. Dubon (a6), C.T. Foxon (a7), Kin M. Yu (a8) and Wladek Walukiewicz (a8)...

Thin films of GaNBi alloys with up to 12.5 at.% Bi were grown on sapphire using low-temperature molecular beam epitaxy. The low growth temperature and incorporation of Bi resulted in a morphology of nanocrystallites embedded in an amorphous matrix. The composition and optical absorption shift were found to depend strongly on the III:V ratio controlled by the Ga flux during growth. Increasing the incorporation of Bi resulted in an increase in conductivity of almost five orders of magnitude to 144 Ω-cm−1. Holes were determined to be the majority charge carriers indicating that the conductivity most likely results from a GaNBi-related phase. Soft x-ray emission and x-ray absorption spectroscopies were used to probe the modification of the nitrogen partial density of states due to Bi. The valence band edge was found to shift abruptly to the midgap position of GaN, whereas the conduction band edge shifted more gradually.

Corresponding author
a)Address all correspondence to this author. e-mail:
Linked references
Hide All

This list contains references from the content that can be linked to their source. For a full set of references and notes please see the PDF or HTML where available.

31. W. Walukiewicz , K. Alberi , J. Wu , W. Shan , K.M. Yu , and J.W. Ager III: Electronic band structure of highly mismatched semiconductor alloys, in Dilute III-V Nitride Semiconductors and Material Systems: Physics and Technology, edited by A. Erol (Springer-Verlag, Berlin, 2008), pp. 6587.

Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Journal of Materials Research
  • ISSN: 0884-2914
  • EISSN: 2044-5326
  • URL: /core/journals/journal-of-materials-research
Please enter your name
Please enter a valid email address
Who would you like to send this to? *



Full text views

Total number of HTML views: 1
Total number of PDF views: 5 *
Loading metrics...

Abstract views

Total abstract views: 77 *
Loading metrics...

* Views captured on Cambridge Core between September 2016 - 29th May 2017. This data will be updated every 24 hours.