Two-Electron Transition in Homoepitaxial GaN Layers

Fiorek, A.; Baranowski, J.; Wysmołek, A.; Pakuła, K.; Wojdak, M.; Grzegory, I.; Porowski, S.

doi:10.12693/APhysPolA.92.742

Journal

Acta Physica Polonica A

1997 | 92 | 4 | 742-744

Article title

Two-Electron Transition in Homoepitaxial GaN Layers

Authors

A. Fiorek , J. Baranowski , A. Wysmołek , K. Pakuła , M. Wojdak , I. Grzegory , S. Porowski

Content

Full texts:

http://przyrbwn.icm.edu.pl/APP/PDF/92/a092z4p20.pdf [remote]

Title variants

Languages of publication

Abstracts

It is shown that the luminescence mapping is a powerful method to help identify optical transitions. Two-electron transition was identified in the homoepitaxial GaN layer by this technique. It was found that the donor and acceptor bound exciton emissions are spatially displaced and show intensity maxima at different places of the epitaxial layer. It was also found that the 3.45 eV line, suspected as "two-electron transition", follows exactly the donor bound exciton spatial distribution. Donor bound exciton recombines leaving the neutral donor in the excited 2s state. Thus, 1s-2s excitation being equal to 22 meV corresponds to 29 meV hydrogenic donor binding energy. This is the first identification of the two-electron transition in GaN.

Keywords

78.66.Fd 78.55.Cr

Discipline

Publisher

Institute of Physics, Polish Academy of Sciences

Journal

Acta Physica Polonica A

Year

1997

Volume

Issue

Pages

742-744

Physical description

Dates

published

1997-10

Contributors

author

A. Fiorek

Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warsaw, Poland

author

J. Baranowski

Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warsaw, Poland

author

A. Wysmołek

Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warsaw, Poland

author

K. Pakuła

Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warsaw, Poland

author

M. Wojdak

Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warsaw, Poland

author

I. Grzegory

High Pressure Research Center, Polish Academy of Sciences, Sokołowska 29, 01-142 Warsaw, Poland

author

S. Porowski

High Pressure Research Center, Polish Academy of Sciences, Sokołowska 29, 01-142 Warsaw, Poland

References

Document Type

Publication order reference

Identifiers

DOI

10.12693/APhysPolA.92.742

YADDA identifier

bwmeta1.element.bwnjournal-article-appv92z420kz