Abstract
Magnesium is the only acceptor impurity practically used in MOCVD of GaN. High activation energy requires high impurity concentration, which results in epilayer morphology degradation. In the presented paper an influence of growth regimes, including choice of carrier gas, on GaN:Mg morphology is presented. It is demonstrated that surface morphology depends on an average magnesium concentration and strongly improves with using nitrogen as carrier gas.
Similar content being viewed by others
References
I. F. Chetverikova, M. V. Chukichev, and A. P. Khramtsov, Rep. on Electron. Techn., Ser. 6: Mater., No. 8, 911 (1982); Rep. on Electron. Techn., Ser. 6: Mater., No. 8, 945 (1983).
M. Inamori, H. Sakai, T. Tanaka, H. Amano, and I. Akasaki, Jpn. J. Appl. Phys. 34, 1190 (1995).
S. Nakamura, T. Mukai, M. Senoh, and N. Iwasa, Jpn. J. Appl. Phys. 31, L139 (1992).
C. Yuan, T. Salagaj, A. Gurary, P. Zawadzki, C. S. Chern, W. Kroll, R. A. Stall, Y. Li, M. Shurman, C.-Y. Hwang, W. E. Mayo, Y. Lu, S. J. Pearton, S. Krishnankutty, and R. M. Kolbas, J. Electrochem. Soc. 142, 738 (1995).
I. P. Smirnova, D. A. Zakgeim, M. M. Kulagina, and L. K. Markov, in Proc. of the 4th All-Russ. Conf. on Nitrides of Hallium, Indium, and Aluminium (Moscow, 2005), p. 134.
D. P. Griffis, R. Loesing, D. A. Ricks, M. D. Bremser, and R. F. Davis, in Proc. of the 11th Intern. Conf. on Secondary Ion Mass Spectrometry, Orlando, Florida, Sept. 7–12, 1997 (Wiley, 1998), p. 201.
B. Schineller, A. Guttzeit, O. Schon, M. Heuken, K. Heim, and R. Beccard, in Proc. of the Int. Conf. on Silicon Carbide, III-Nitrides and Related Materials (Stockholm, Sweeden, 1997), p. 548.
T. Wunderer, P. Brückner, B. Neubert, F. Scholz, M. Feneberg, F. Lipski, M. Schirra, and K. Thonke, Appl. Phys. Lett. 89, 041121 (2006).
V. V. Lundin, A. E. Nikolaev, A. V. Sakharov, and A. F. Tsatsul’nikov, Fiz. Tekh. Poluprovodn. 42, 233 (2008) [Semiconductors 42, 232 (2008)].
Huaibing Wanga, Jianping Liua, Nanhui Niua, Guangdi Shena, and Shuming Zhang, J. Cryst. Growth 304, 738 (2007).
M. L. Nakarmi, K. H. Kim, J. Li, J. Y. Lin, and H. X. Jiang, Appl. Phys. Lett. 82, 3041 (2003).
W. V. Lundin, Candidate’s Dissertation in Mathematical Physics (Fiz. Tekh. Inst., St.-Petersburg, 1998).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © W.V. Lundin, A.V. Sakharov, E.E. Zavarin, M.A. Sinitsyn, A.E. Nikolaev, G.A. Mikhailovsky, P.N. Brunkov, V.V. Goncharov, B.Ya. Ber, D.Yu. Kazantsev, A.F. Tsatsulnikov, 2009, published in Fizika i Tekhnika Poluprovodnikov, 2009, Vol. 43, No. 7, pp. 996–1001.
The article was translated by the authors.
Rights and permissions
About this article
Cite this article
Lundin, W.V., Sakharov, A.V., Zavarin, E.E. et al. Effect of carrier gas and doping profile on the surface morphology of MOVPE grown heavily doped GaN:Mg layers. Semiconductors 43, 963–967 (2009). https://doi.org/10.1134/S1063782609070276
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063782609070276