作者: T. Taliercio , P. Valvin , R. Intartaglia , V. Sallet , J. C. Harmand
关键词:
摘要: We present a study of the optical properties quantum dots based on new family semiconductors: III-V dilute nitrides such as (In,Ga)(N,As). Continuous wave and time resolved photoluminescence (PL) experiments allowed us to evaluate impact N incorporation during growth InAs/GaAs dots. Previous work [V. Sallet et al., be submitted J. Cryst. Growth (2005); O. Schumann Appl. Phys. 96, 2832 (2004)] showed that increasing flux atoms into chamber modifies drastically size which leads bimodal growth. Two populations with different sizes appear. The dot PL line broadens second appears at higher energy. Time allows identify nature this line: population A decay is observed we interpret being consequence perturbation electronic states