Simulation study of the origin of the 2DEG in isolated Al/sub x/Ga/sub 1-x/N/GaN heterostructures

作者: J.A. Casao Perez

DOI: 10.1109/SCED.2005.1504339

关键词: Schrödinger equationPoisson's equationHeterojunctionPhysicsCharge (physics)Condensed matter physicsWide-bandgap semiconductorSurface states

摘要: The significance of the surface states in isolated Al/sub x/Ga/sub 1-x/N/GaN heterostructures is investigated. A model based on a self-consistent solution Schrodinger, Poisson and charge balance equations presented. results obtained for 2DEG density potential agree well with theoretical experimental data already published (Jogai, 2002 Smorchkova et al., 2001).

参考文章(5)
A. Trellakis, A. T. Galick, A. Pacelli, U. Ravaioli, ITERATION SCHEME FOR THE SOLUTION OF THE TWO-DIMENSIONAL SCHRODINGER-POISSON EQUATIONS IN QUANTUM STRUCTURES Journal of Applied Physics. ,vol. 81, pp. 7880- 7884 ,(1997) , 10.1063/1.365396
B. Jogai, Free electron distribution in AlGaN/GaN heterojunction field-effect transistors Journal of Applied Physics. ,vol. 91, pp. 3721- 3729 ,(2002) , 10.1063/1.1452773
I. P. Smorchkova, L. Chen, T. Mates, L. Shen, S. Heikman, B. Moran, S. Keller, S. P. DenBaars, J. S. Speck, U. K. Mishra, AlN/GaN and (Al,Ga)N/AlN/GaN two-dimensional electron gas structures grown by plasma-assisted molecular-beam epitaxy Journal of Applied Physics. ,vol. 90, pp. 5196- 5201 ,(2001) , 10.1063/1.1412273
O. Ambacher, J. Smart, J. R. Shealy, N. G. Weimann, K. Chu, M. Murphy, W. J. Schaff, L. F. Eastman, R. Dimitrov, L. Wittmer, M. Stutzmann, W. Rieger, J. Hilsenbeck, Two-dimensional electron gases induced by spontaneous and piezoelectric polarization charges in N- and Ga-face AlGaN/GaN heterostructures Journal of Applied Physics. ,vol. 85, pp. 3222- 3233 ,(1999) , 10.1063/1.369664