Improved synthesis of (In,Ga)N/GaN multiple quantum wells by plasma-assisted molecular-beam epitaxy

Autor: Brandt, O, Sun, Y J, Schonherr, H P, Ploog, K H, Waltereit, P, Lim, S H, Speck, J S
Jazyk: angličtina
Rok vydání: 2003
Zdroj: Brandt, O; Sun, Y J; Schonherr, H P; Ploog, K H; Waltereit, P; Lim, S H; et al.(2003). Improved synthesis of (In,Ga)N/GaN multiple quantum wells by plasma-assisted molecular-beam epitaxy. Applied Physics Letters, 83(1), 90-92. UC Santa Barbara: Retrieved from: http://www.escholarship.org/uc/item/7wr070fg
Popis: We present a simple strategy that minimizes the impact of surface segregation of In during the growth of (In,Ga) N/GaN multiple quantum wells by plasma-assisted molecular-beam epitaxy and simultaneously results in abrupt interfaces. The two ingredients of this strategy are (i) the use of a higher substrate temperature than commonly employed, that is, well above the In desorption point and (ii) the use of a modulated stoichiometry, that is, N-rich during growth of the well and Ga-stable during growth of the barrier. (C) 2003 American Institute of Physics.
Databáze: OpenAIRE