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Analysis of three types of Interdiffusion Process in Ingaas/Inp Quantum-Well and their Devices Implications
Published online by Cambridge University Press: 10 February 2011
Abstract
The optical properties of In0.53Ga0.47As/InP single quantum well (QW) (with an as-grown well width of 60Å structures) interdiffused with different cation and anion interdiffusion rates have been theoretically analyzed for applications in optoelectronics. The interdiffusion of TnGaAs/InP QW structures is complicated as interdifrusion can occur for either (i) only group-Ill (In,Ga), (ii) group-V (As,P), or (iii) both group-Ill and group-V sublattices. Depending on the resulting composition profiles, the shifts (blue or red) of the transition energies can be tuned to wavelengths between 1.3μm to 1.55μm for device applications. The results show that the control of the rates of cation and anion interdiffusion offers interesting possibilities for designing optoelectronic devices such as modulators and lasers.
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- Copyright © Materials Research Society 1997
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