Wanted: Band Offsets for Quantum Wells

[BeauGeste]

Hi,

Really having a hard time finding conduction band offsets for semiconducting quantum wells - specifically GaAs/AlGaAs and CdTe/CdMgTe. I've heard 0.1 and 0.3 eV for AlGaAs and haven't seen anything on CdTe. Does anybody know of a reference where I could find these tabulated.
Thanks a lot.

btw. by offsets I mean the potential barrier height of the well - i.e. finite square well potential

 

[Dr Transport]

If memory serves me correctly, the band offset for the GaAs/AlGaAs is a 60/40 split of the energy gap. Not too sure about the other system, in addition, I am not sure if CdTe/CdMgTe is type I or II.

I'd check Cardona and Yu and see where they lead you.

 

[charng]

I would suggest looking into peer-reviewed journal articles or conference papers that specifically focus on the band offsets of GaAs/AlGaAs and CdTe/CdMgTe quantum wells. These types of studies often include detailed data and analysis on the conduction band offsets. Additionally, consulting with experts in the field or reaching out to authors of relevant papers may also provide valuable information. It is important to carefully evaluate the sources and methods used to determine the band offsets, as they may vary depending on experimental conditions and theoretical models.