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The conduction band absorption spectrum of interdiffused InGaAs/GaAs quantum dot infrared photodetectors

Jolley, G; McKerracher, I; Fu, Lan; Jagadish, C.; Tan, Hark Hoe


We report on a theoretical study of the relationship between interdiffusion and the conduction bandoptical absorption of In(Ga)As/GaAs quantum dots.Quantum dot geometries are progressively interdiffused based on Fick’s model and the quantum dot strain, band structure and optical absorption cross-section are calculated numerically. Quantifying the effects of interdiffusion on quantum dotoptical absorption is important for applications that utilize post-growth techniques such as selective area...[Show more]

CollectionsANU Research Publications
Date published: 2012-06-26
Type: Journal article
Source: Journal of Applied Physics
DOI: 10.1063/1.4729833


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