Effect of N isotopic mass on the photoluminescence and cathodoluminescence spectra of gallium nitride

F. J. Manjón, M. A. Hernández-Fenollosa, B. Marí, S. F. Li, C. D. Poweleit, A. Bell, Jose Menendez, M. Cardona

Research output: Contribution to journalArticle

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Abstract

GaN is a wurtzite-type semiconductor at ambient conditions whose natural composition consists of almost pure 14N (99.63% 14N and 0.37% 15N) and a mixture of 60.1% 69Ga, and 39.9% 71Ga. We report a low-temperature photoluminescence and cathodoluminescence study of GaN thin films made from natural Ga and N, and from natural Ga and isotopically pure 15N. The contribution of the nitrogen vibrations to the bandgap renormalization by electron-phonon interaction has been estimated from the nitrogen isotopic mass coefficient of the bound exciton energy. The temperature dependence of the bandgap of GaN can be explained with the measured isotopic mass coefficients of Ga and N. We have estimated the aluminum and indium contribution to the bandgap renormalization in AlN and InN from the temperature dependence of the AlN and InN bandgap up to 300 K, assuming that the N contribution is similar to that found in GaN. The similar bandgap isotopic mass coefficients of C, N, and O, of Al, Si and P, of Zn, Ga and Ge, and of Cd and In suggests that elements of the same row of the periodic table have similar bandgap isotopic mass coefficients.

Original languageEnglish (US)
Pages (from-to)453-458
Number of pages6
JournalEuropean Physical Journal B
Volume40
Issue number4
DOIs
StatePublished - Aug 2004

Fingerprint

Gallium nitride
Cathodoluminescence
gallium nitrides
cathodoluminescence
Photoluminescence
Energy gap
photoluminescence
coefficients
Nitrogen
nitrogen
Electron-phonon interactions
temperature dependence
Indium
electron phonon interactions
Aluminum
Excitons
wurtzite
Temperature
indium
gallium nitride

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Manjón, F. J., Hernández-Fenollosa, M. A., Marí, B., Li, S. F., Poweleit, C. D., Bell, A., ... Cardona, M. (2004). Effect of N isotopic mass on the photoluminescence and cathodoluminescence spectra of gallium nitride. European Physical Journal B, 40(4), 453-458. https://doi.org/10.1140/epjb/e2004-00211-1

Effect of N isotopic mass on the photoluminescence and cathodoluminescence spectra of gallium nitride. / Manjón, F. J.; Hernández-Fenollosa, M. A.; Marí, B.; Li, S. F.; Poweleit, C. D.; Bell, A.; Menendez, Jose; Cardona, M.

In: European Physical Journal B, Vol. 40, No. 4, 08.2004, p. 453-458.

Research output: Contribution to journalArticle

Manjón, FJ, Hernández-Fenollosa, MA, Marí, B, Li, SF, Poweleit, CD, Bell, A, Menendez, J & Cardona, M 2004, 'Effect of N isotopic mass on the photoluminescence and cathodoluminescence spectra of gallium nitride', European Physical Journal B, vol. 40, no. 4, pp. 453-458. https://doi.org/10.1140/epjb/e2004-00211-1
Manjón, F. J. ; Hernández-Fenollosa, M. A. ; Marí, B. ; Li, S. F. ; Poweleit, C. D. ; Bell, A. ; Menendez, Jose ; Cardona, M. / Effect of N isotopic mass on the photoluminescence and cathodoluminescence spectra of gallium nitride. In: European Physical Journal B. 2004 ; Vol. 40, No. 4. pp. 453-458.
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