Frontiers of Optoelectronics, Volume. 2, Issue 1, 108(2009)
Effect of indium distribution on optical properties in InGaAs/GaAs quantum wells
The effect of In surface segregation and diffusion on the transition energy of an InGaAs/GaAs strained quantum well (QW) was investigated theoretically. Diffusion equations and the Schr?dinger equation on the InGaAs/GaAs QW were solved numerically. The energy shifts under different diffusion lengths were simulated. When the width of QW, L, is larger than 5 nm, the change rate of the transition energy is very minimal at the initial stage of the annealing process for wide QW, and the transition energy has a rapid blue shift with an increase of the diffusion length. When L is smaller than 5 nm, the transition energy is very sensitive to the diffusion length. The change rate of transition energy increases with a decrease in QW width.
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Guozhi JIA, Jianghong YAO, Yongchun SHU, Xiaodong XIN, Biao PI. Effect of indium distribution on optical properties in InGaAs/GaAs quantum wells[J]. Frontiers of Optoelectronics, 2009, 2(1): 108
Received: Aug. 6, 2007
Accepted: Dec. 9, 2007
Published Online: Oct. 8, 2012
The Author Email: JIA Guozhi (jiaguozhi@tjuci.edu.cn)